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CAPA System User`s Manual

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1. e Finally the answer to the problem is declared using the ANS command The line with the answer should come literally at the end of all the material for a problem See Section 6 for explanations of the arguments of the ANS function 6 Example 2 Using the choose function The choose function can be used to select among choices or to correlate variables with pictures or graphs Note there should be NO carriage return in the choose line In general try to minimize carriage returns as they use up the limited amount of lines available as screen display on the vt100 terminals In this example the computer selects a random number in the range of 1 to 14 and then constructs a filename to be displayed and the correlated answer 7 POR RER EE EEE EEE EEE BEG prob_val 1 IMP Tools Problem By E Kashy kashy nscl msu edu No commercial use LET k random 1 14 1 LET file choose k 35 45 56 62 77 86 93 m26 m39 m47 m51 m66 m74 m84 LET ans5 choose k 3 5 4 5 5 6 6 2 7 7 8 6 9 3 2 6 3 9 4 7 5 1 6 6 7 4 8 4 The graph shows the function DIS tex centerline Y a x Y ax Make a careful determination of the value of DIS tex a a DIS tex epsfxsize 3 6in epsffile usr users teacher CAPA45 nsc111f7 pictures Y DIS var_in_tex file DIS tex x ps DISC html lt IMG SRC nsc111f7 pictures Y DIS html file DIS html x gif gt ANS ans5 2E t
2. LET s3c The frequency of oscillation depends of k LET s3d Statement 3 variation d LET mix3 random 1 3 1 LET a3a 2 LET a3b 2 LET a3c 1 LET a3d 26 IMP MCTools Nof3aux ANS Nof3right wgt prob_ val str mc tries 5 DIS stdline PRTC TT TTC a oo o k kk kk kk kkk kkk kk kk k kk The output of the above code appears as 1 lpt A mass M 0 16 kg is on a smooth horizontal surface negligible friction It is attached to a spring with spring constant k 15 3 N m The mass is displaced from its equilibrium position x 0 by a distance of 0 14 m x 0 14 m and then released from rest Give all of the correct answers i e A or BC or ABC A The amplitude varies with time B The Period of oscillation is independent of k C The motion of M is simple harmonic motion The statements displayed to the student are controlled by the mix random 1 4 1 index The upper limit on the random function is determined by the number of statements available as options in each set In the example there is only one choice of the first statement and mix1 random 1 1 1 For the third statement there are three choices and mix3 random 1 3 1 so students get one ot the other The example relies on an auxillary file to do the scrambling This file is imported into setx qz with the command 5 SPECIFICATION OF CAPA PROBLEM SETS 34 IMP MCTools Nof3aux The imported auxillary file depends upon consistency in variable nam
3. By E Kashy kashy nscl msu edu No commercial use MCTools Nof8 Select N correct of 8 Statements Which of the following 20th century vice presidents served later as president Give all correct answers A CE BDF etc of the United States DIS html lt a href nsc111 7 Links IN_CodeTools html gt Instructor Note Coding Tools lt a gt set ala 1 for a correct variation and 2 for incorrect etc ALL variations for at least one statement must always be correct LET s1a Theodore Roosevelt NY LET sib Lyndon B Johnson TX LET sic Statement 1 variation c LET sid Statement 1 variation d 56 9 A PROBLEM SET WITH SOURCE CODE FOR SOME QUESTIONS LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET IMP mixi random 1 2 1 ala 1 aib 1 aic 26 aid 26 s2a Calvin Coolidge VT s2b Statement 2 variation b s2c Statement 2 variation c s2d Statement 2 variation d mix2 random 1 1 1 a2a 1 a2b 26 a2c 26 a2d 26 s3a Harry S Truman MO s3b Statement 3 variation b s3c Statement 3 variation c s3d Statement 3 variation d mix3 random 1 1 1 a3a 1 a3b 26 a3c 26 a3d 26 s4a Thomas R Marshall IN s4b
4. George Bush MA s4c Statement 4 variation c s4d Statement 4 variation d mix4 random 1 2 1 a4a 2 a4b 1 a4c 26 a4d 26 s5a James S Sherman NY s5b Statement 5 variation b s5c Statement 5 variation c s5d Statement 5 variation d mix5 random 1 1 1 a5a 2 a5b 26 a5c 26 a5d 26 s6a Walter Mondale MN s6b Statement 6 variation b s6c Statement 6 variation c s6d Statement 6 variation d mix6 random 1 1 1 a6a 2 a6b 26 a6c 26 a6d 26 MCTools Nof6aux ANS Nof6right wgt prob_val str mc tries 10 DIS stdline 57 9 A PROBLEM SET WITH SOURCE CODE FOR SOME QUESTIONS 58 Paaa ORO OO kkk kkk kk k kk kkk kk kk k k Below are problems 14 17 18 MESELTE AOAC ACOA AGIOS GE ICC BEG prob_val 1 IMP Tools Problem By E Kashy kashy nscl msu edu No commercial use LET k random 1 14 1 LET file choose k 35 45 56 62 77 86 93 m26 m39 m47 51 m66 m74 m84 LET ans5 choose k 3 5 4 5 5 6 6 2 7 7 8 6 9 3 2 6 3 9 4 7 5 1 6 6 7 4 8 4 The graph shows the function DIS tex centerline Y a x Y ax Make a careful determination of the value of DIS tex a a DIS tex epsfxsize 3 6in epsffile usr users teacher CAPA45 nsc111f7 pictures Y DIS var_in_tex file DIS tex x ps DIS html lt IMG SRC nsc111 7 pictures Y DIS html file DIS html x gif gt ANS ans5 2E tol 5 wet prob_val tries
5. select Long Form i User s Full Name i e instructor s full name or another description such as CAPA Instructor ii Username teacher iii Password enter a secret password case sensitive iv User ID A number selected by the operating system v Home Directory teacher vi Login Shell bin csh h select Save in the menu follow the instructions verify password check values i select Yes to create a home directory then wait for the save to be completed 4 Create an account that will be used by the students in the class to login called nsc111f7 a Locate the file etc shells in the File Viewer Double click its icon to open the file with Edit app This will enable you to edit the file so that the code teacher CAPA45 capalogin acts as a valid Login shell under UNIX To complete this i Add the line below to the etc shells file teacher CAPA45 capalogin with a lt CR gt at the end ii select Save in the menu b Continuing with NextAdmin UserManager i select New User ii select Local as user type 1 INSTALLATION OF CAPA 10 11 iii select Groups iv select cai in the User Group Info window v set default group as cai vi select Long Form A Username classname here enter nsc111f7 mmo User s Full Name i e Natural Science Students Fall 1997 Password none just hit return User ID a number selected by the operating system Home Directory teacher sub direc
6. with indefinite number of arguments Arguments must be of either all integer or real type String comparison are such that A lt a i e lower case letters have a higher value than upper case letters LET a min 23 45 12 7 9 LET b max 23 1 45 3 12 6 7 1 9 0 LET c min a ae aeg Reg LET d max a k oe aeg 5 Aeg a DIS a 2f b DIS b 2f c DIS c d DIS d Output a 7 b 45 30 c Aeg d aeg 6 CAPA FUNCTIONS 43 Description sample quizzer code and output factorial n Arguments must be an integer Returns an integer if n is or smaller else or real value LET number factorial 6 DIS 6 DIS number DIS newline DIS 0 DIS factorial 0 DIS newline LET number2 factorial 21 DIS 21 DIS number2 3F DIS newline Output 6 720 O 1 21 5 109 x 10 9 N and M are integers and the remainder of the integer ratio is returned LET ratio 98 5 DIS ratio DIS ratio DIS newline LET leftover 98 5 DIS remainder DIS leftover Output ratio 19 remainder 3 sinh x Hyperbolic functions cosh x tanh x asinh x Inverse hyperbolic functions acosh x atanh x roundto vari n Rounds the value of real variable varl to n places LET value 100 0 3 0 Initial value DIS value 5f DIS newline LET value roundto value 2 The new value is now DIS value 5f and can be used as DIS value 2f with no rounding error Output Initial value 33
7. 33333 The new value is now 33 33000 and can be used as 33 33 with no rounding error web a b c ASCII a tex b and html c strings or variables displayed respectively Example DIS web M2 M _2 M lt sub gt 2 lt sub gt html a or variable or string a parsed for WWW Browser Only Example DIS htm1 lt br gt lt a href nsc111f7 Links webPulley html gt Motion of Masses on a Pulley lt a gt lt p gt asinh x Inverse hyperbolic functions acosh x atanh x 6 CAPA FUNCTIONS 44 Description sample quizzer code and output random 1 u d random 1 u choose i tex a b tex a b Bessel functions of the first kind with orders 0 1 and n respectively Note that the first argument is integer the second real LET aa jn 0 3 0 LET bb jn 1 3 0 LET cc jn 2 3 0 aa DIS aa 4f bb DIS bb 4f Output aa 0 2601 bb 0 3391 cc 0 4861 Bessel functions of the second kind with orders 0 1 and n respectively Note that the first argument is integer the second real LET dd yn 1 3 0 dd DIS dd 4f Output dd 0 3247 Returns a uniformly distributed random number between l and u with steps of d If not specified d 1 Note that all arguments must be the same type integer or real LET index random 2 5 2 returns integers 2 or 4 LET value random 2 3 5 15 0 2 returns 2 3 2 5 2 7 5 1 index DIS index value DIS value 2f Output index 4 value 3 70 Choose
8. 8 33 61 0 0 NOTE Enter the IP address of the machine you are using For this example 35 8 33 61 is used In the field Command Name enter the name you want your command to be called Example capal In the field Display choose Color Rootless In the field Output choose Save In the field Username enter your username for access to your host Example teacher In the field Password enter your password for access to your host 10 11 12 13 14 15 Select Host Another pop up screen will appear In the field Method choose MacTCP Tool In the field Host name or address enter your hostname Example capai nscl msu edu Select OK The second pop up window will disappear Choose Set The original pop up window will disappear From the menu bar choose Remote Select the new command which should show as you have named it on the bottom of the choicelist under Remote TMacX 1995 Apple Computer Inc All rights reserved 3 RUNNING CAPA VIA X SERVER SOFTWARE 16 16 You will be prompted to enter your password select OK The next window that opens will be your xterminal into your host You can now use your account on your host through the xterm application Be certain to logoff from your host by typing exit to close the xterm application when you are finished To set up direct access to quizzer and or grader 1 2 3 o N D OO 15 From the menu bar
9. College of Natural Science Michigan State University CAPA msu 9 A PROBLEM SET WITH SOURCE CODE FOR SOME QUESTIONS 53 Source Code for some Sample Problems Note that a few carriage returns which are NOT in the actual set1 qz file have been added so that the text would not be cut off below Begining of Set1 qz source code CAPA system software is copyrighted by Michigan State University By using these materials the User agrees to 1 Protect the source code files from unauthorized copying 2 Limit access of the source material to teaching staff 3 The User is free to mix cut and paste modify adapt delete improve etc the problems and graphics for his her own use IMP Tools StdMacros IMP Tools StdUnits IMP HWTop PEAR OAC AGOGO GG IG ICC Problem 1 is not shown Below are problems 2 3 4 PEER AAO ACEO ACG IG ICC PEAR ACEC OAC IG I IRA BEG prob_val 1 IMP Tools Problem By E Kashy kashy nscl msu edu No commercial use LET length random 12 5 23 6 1 0 LET width random 36 48 1 Calculate the perimeter of a rectangle with a length of DIS length 1f DIS cm_u and a width of DIS width 0f DIS mm_u DIS web Enter units Enter units lt a href nsciiif7 Links UnitFmt html gt Enter units lt a gt DIS html lt a href nsc111 7 Links IN_units html gt Instructor Note Units lt a gt LET peri_cm 2 length width 10 0 HIN T
10. Previous sets can be reviewed anytime 4 GUIDED TOUR OF THE CAPA SYSTEM 21 If the current date and time are within the allowed time range specified in the DB Header file students can enter their answers The answers are recorded as they are submitted Problems arise when students open multiple sessions If two sessions for one student are active at the same time the computer records the distribution of correct and incorrect answers of the last session to log out not necessarily the session with the most credit earned This is the reason for limiting active sessions e Sample login A Open a new telnet or rlogin session into the server The method for this varies depending upon the type of X server software being used See Section 3 on configuration of X server software At the prompt login enter the classname Example nsc111 7 The capalogin screen will be displayed Enter A87654321 for the student number Note that the cursor should be positioned after the colon following the words Student Number near the middle of the screen If it is not particularly if it is at the bottom of the screen the terminal emulation is not VT100 and needs to be reset in the terminal emulator Enter the CAPA ID as was printed on the homework page for student number A87654321 The CAPA ID number must correspond to the one printed on the problem set for this student or the login will not be allowed The student s name is displayed at the top of th
11. QUESTIONS LET s6c Statement 6 variation c LET s6d Statement 6 variation d LET mix6 random 1 1 1 LET x6a 4 LET x6b 26 LET x6c 26 LET x6d 26 LET s7a Harry S Truman LET s7b Woodrow Wilson LET s7c Sam Rayburn LET s7d Richard M Nixon LET mix7 random 1 4 1 LET x7a 3 LET x7b 3 LET x7c 3 LET x7d 3 IMP MCTools i7p5auxw ANS i7p5right wgt prob_val tries 10 DIS stdline 1 LR HR HR SERRE RER kk kk kk kk kk kk kk k kk kk k kk kk k k 1 LR HR aaao ooo k k kk kk kkk kk kkk kkk kk k kk LET prob_val 2 HIN No Hint unless you un comment this text to make it into a hint EXP No Explanation unless you un comment this text and write something IMP Tools Problem 4 Statements Rank4 tool see Rank 5 for more variations of each item List the following in order of increasing lengths from shortest to longest If B is shortest then A then C and D is longest enter BACD FILL Qty1 Qty2 as strings assign a relative size rsi rs2 LET Qty1 0 10 ft LET Qty2 40 mm LET Qty3 0 060 m LET Qty4 1 00 inch The values below are all in mm LET rsi 0 1 12 25 4 LET rs2 40 0 LET rs3 60 0 LET rs4 25 4 IMP MCTools Rank4aux ANS Rank4right wet prob_val tries 10 DIS stdline 1 LR HR HR C LOCO k ok kk kk kk kk kk kkk kk k kk kk k k Doaa aaa ok kk kk kk kk kk kk kk kkk kk k kk kk k k BEG prob_val 2 IMP Tools Problem
12. answers and view the hints Note that the emulation is very specifically vt100 and not vt102 vt200 etc See the installation instructions for information on making additions to the recognized terminal emulation on page 5 At Michigan State University the students login to the system from a large number of remote locations on and off campus They have used a variety of computers IBM Mac etc that emulate a vt100 terminal For the guided tour you will shortly open a terminal window on the host computer e Login Instructions An example of a login instruction handout which has been used at MSU is reproduced in this manual on page 8 e A student logs in by entering the class account username in our example nsc111f7 This account does not have a password so anyone can get in but they are captured by the code capalogin and have limited access to the machine see details on page 3 e The student is then asked to enter his or her student number and the CAPA ID number of any assignment The Student Number has 9 characters At MSU the last 8 are digits but the 9 characters can be a mixture of digits and letters The CAPA ID number is unique for each problem set for a given student in a given course It has 4 digits and will be printed on a student s individual assignment sheet Each student has a different CAPA ID number for each problem set The capalogin code will select the setz qz file that corresponds to the CAPA ID
13. considerable help in computer and network operation CAPA license can be obtained from Instructional Media Center Michigan State University East Lansing MI 48826 0710 See also http www pa msu edu educ CAPA
14. his grip on the string letting the balloon escape upwards C The fisherman fills a glass with water from the pond and drinks it D The fisherman lowers himself in the water and floats on his back E The fisherman knocks the tackle box overboard and it sinks to the bottom 9 A PROBLEM SET WITH SOURCE CODE FOR SOME QUESTIONS 52 16 3pt Match the appropriate letter on the diagram with each organelle in the sequence in which they are listed Example If the first organelle corresponds to D on the diagram and the next to C begin your answer with AC M 1 2 Peroxisome Cell or Plasma Membrane 3 Golgi Body 4 Plastid Chloroplast proplastid 5 Vacuole 6 Tonoplast or Vacuolar Membrane 7 8 9 0 1 Nucleus Mitochondrion Ribosomes Cell Wall 11 Nuclear Envelope 12 Endoplasmic Reticulum 13 Nucleolus 17 lpt A block is at rest on an inclined plane whose elevation can be varied The angle of elevation 8 is increased slowly from the horizontal and when it reaches 43 1 degrees the block begins to slide Calculate the coefficient of static friction 18 lpt The block reaches a speed of 3 21 m s in a time of 1 12s Calculate the coefficient of kinetic friction Use g 9 81 m s 19 2pt A frictionless massless pulley is at tached to the ceiling in a gravity field of 9 81m s Mass M is greater than mass m The quantities T and g are magnitudes For each stateme
15. s particular needs 1 teacher CAPA45 Tools directory holds the following files AnonymousSN Problem StdMacros StdUnits parProblem They include some variable definitions that can be used to simplify problem coding 2 teacher CAPA45 MCTools directory contains files that were written to simplify the coding of qualitative conceptual questions Answers types include T F matching ranking etc The code in examiof8 trans forms a single numerical answer into a multiple choice format with 8 choices Set2 qz of the directory nsc111f7 contains all these problem types in qz format The directory currently contains the following files 90 120grids Rank5 figi3to13w i3p6 labeliiauxw 90 60grids Rank5aux fig4to4auxw i3p6aux labeliiw 90 90grids SM3 fig4to4w i3p6auxw labeli2auxw M3T7 SM3aux fig5tos i4p5 label12w M3T7aux SM4 fig5tobaux i4p5aux label13auxw MAT7 SM4aux fig5tobauxw i4p5auxw label13w M4T7aux SM5 fig5to5w i4p6 labeli4auxw MST7 SM5aux fig6to6 i4p6aux label14w MST7aux SM6 fig6to6aux i4p6auxw label15auxw M6T7 SM6aux fig6to6auxw i5p5 label15w M6T7aux SM7 fig6to6w i5p5aux label116auxw M7T7 SM7aux fig7to7 i5p5auxb label16w M7T7aux SM8 fig7to7aux i5p5auxw label17auxw M8T7 SM8aux fig7to7auxw i5p6 label17w M8T7aux SM9 fig7to7w i5p6aux label18auxw MOT7 SM9aux fig8to8 i5p6auxw label118w MOT7aux aReadMe_Nof3 fig8to8aux i6p5 label2auxw Nof3 aReadMe_ixpy fig8to8auxw i6p5aux label2w Nof3aux aTypeSummary fig8to8w i6p5auxw label3auxw Nof4 examO0f
16. tcl 7 6 and tk 4 2 libraries must be installed for the X Windows version See your system adminis trator for help in installing these libraries c For a broad range of terminal emulators to be able to access the system it is necessary to modify the etc termcap file to accommodate the appropriate vt100 terminal attributes including handling non standard nomenclature used by terminal emulation programs on Macs and PCs A notable example is the widely used tn program that is part of FTP Software Inc s PC TCP package This program negotiates its terminal type with the host computer using the prefix dec for the vt family of terminals e g it requests terminal type dec vt100 instead of vt100 This prefix if unknown to the Unix host may cause the negotiation to result in an incorrect terminal type or to fail completely The line in the standard etc termcap file that reads dO vt100 vt100 am vt100am dec vt100 should be edited to read dO vt100 vt100 am vt100am dec vt100 dec vt100 thereby establishing dec vt100 as an official synonym for vt100 Note that the dec vt100 en try is different from the dec vt100 entry We advise adding the new alias rather than changing the existing alias and possibly causing other problems A similar change can be made on other operating systems which use the etc termcap method of terminal definition Unix systems us ing the terminfo program instead will support similar minor changes to the
17. the class list file is strict and must correspond exactly to that in the following example x The sample file classl with the information for enrolled students must have the following structure 123456789012345678901234567890123456789012345678901234567890123456789012345 nsc 111 001 A12345678 Davis Nancy ndavis nscl msu edu nsc 111 001 A87654321 Student Jamie nsc 111 001 173336318 Kashy Edwin N kashy nscl msu edu nsc 111 002 A51413121 Tsai Isaac Y nsc 111 002 173336321 Morrissey David J nsc 111 002 173336323 Thoennessen Mike Note The first row of digits is NOT part of the file but is given here to locate the information in the file The fields used by this system are Section number which appears in columns 11 to 13 a b Student Number in columns 15 to 23 c Student Name beginning in column 25 The maximum number of characters in the Student Name field is 30 at present The course acronym and number in columns 1 to 10 are not used by the system but are convenient for recordkeeping The format of the file must be exact The section number is used for printing in batch mode Each line including the last line must end with a carriage return There should NO blank lines in the file There should also not be any extra empty lines at the end they may cause multiple printing of the problems for the last real student in the list After line character number 56 any comment can be added We have used this
18. when a student already is logged on twice and tries to begin a third session Exam path Optional contains the absolute path to the Exam class folder if one exists A student can access exam scores from the Main Menu Quiz path Optional contains the absolute path to the Quiz class folder if one exists A student can access quiz scores from the Main Menu 4 capahtml and capasbin e Functions The major functions of capahtml are to Authenticate the student number and CAPA ID entered by the student and generate the main menu page after verifying them Produce the page that contains the corresponding problem set when a student selects Try current set button from the main menu page Display a summary of student grades when Term summary button is selected e Functions The major functions of capasbin are to 5 grader Check the correctness of answers submitted by the student when clicking Submit All Answers button Give the appropriate response to a student s entry and display the correct answer when the entry is satisfactory e Functions The major functions of grader are to Generate grade reports for a student a section or for the entire class Facilitate grading and recording of individual assignments that are not entered remotely via capalogin or capaweb grader displays the range of correct answers for each specific student s assignment and the instructor can hand grade and upda
19. x respectively LET varx 1 526 LET vary 0 5 LET vari exp varx LET var2 pow varx 0 5 LET var3 pow varx vary LET var4 sqrt varx vari DIS var1 2f var2 DIS var2 2f var3 DIS var3 2f var4 DIS var4 2f Output vari 4 60 var2 1 24 var3 1 24 var4 1 24 6 CAPA FUNCTIONS 42 Description sample quizzer code and output abs x sgn x erf x erfc x ceil x floor x abs x returns the absolute value of x sgn x returns 1 0 or 1 depending on value of x LET xx 2 5 LET vari abs 4 5 LET var2 sgn xx LET var3 sgn 4 5 xx vari DIS vari 2f var2 DIS var2 var2 DIS var2 2f var3 DIS var3 Output vari 4 50 var2 1 var2 1 00 var3 1 Error functions er f x Je et dt and er fe x 1 0 er f x LET varx 0 51 Evaluate the Normal Probability Integral from DIS varx to DIS varx DIS newline LET prob erf varx sqrt 2 0 Probability DIS prob 4f Output Evaluate the Normal Probability Integral from 0 51 to 0 51 Probability 0 3899 Ceiling and floor functions ceil x x and floor x x The ceiling function returns an integer rounding x toward positive infinity The floor function rounds toward negative infinity LET varx ceil 3 65 LET vary floor 3 65 LET varz ceil 5 73 LET varw floor 5 73 varx DIS varx vary DIS vary varz DIS varz varw DIS varw Output varx 4 vary 3 varz 5 varw 6 Minimum and maximum functions
20. 10 DIS stdline PEAR ACEO AG OGG G IG GE IGA PER BAEC AGOGO GG AR IA aE BEG prob_val 1 IMP Tools Problem By E Kashy kashy nscl nscl msu edu No unauthorized commercial use LET thetaslide random 34 1 43 6 0 2 A block is at rest on an inclined plane whose elevation can be varied The angle of elevation DIS web theta theta lt b gt lt i gt theta lt i gt lt b gt is increased slowly from the horizontal and when it reaches DIS thetaslide 1f degrees the block begins to slide Calculate the coefficient of static friction DIS html lt a href nsc111 7 Links TFCanim1 html gt Motion of a block lt a gt LET pi 3 141592654 LET thetaRad thetaslide pi 180 0 LET muStat tan thetaRad ANS muStat 2E tol 1 wgt prob_val tries 10 BEG prob_val 1 IMP Tools Problem By E Kashy kashy nscl nscl msu edu No unauthorized commercial use LET slidetime random 1 12 1 475 0 01 LET speed random 2 87 3 435 0 01 The block reaches a speed of DIS speed 2f DIS mPs_u in a time of DIS slidetime 2f DIS s_u Calculate the coefficient of kinetic friction Use g 9 81 DIS mPs2_u HIN The block accelerates because mu_k is less than mu_s LET accel speed slidetime LET muk 9 81 sin thetaRad accel 9 81 cos thetaRad ANS muk 2E tol 1 wgt prob_val tries 10 DIS stdline DIS newpage Daaka aooo o OK Below is problems 19 Daaa kk kkk kk kkk kk k kk kkk k BEG prob_
21. 1f DIS atm_u pressure A second vessel DIS jan3 1f L in volume contains oxygen at DIS jan4 1f DIS atm_u pressure Now suppose that the two vessels are connected by a pipe of negligible volume and the two gases mix and react to produce as much nitrogen dioxide as possible Assume that the temperature remains constant What is the pressure in the apparatus at the end of the reaction HIN First determine the limiting reagent HIN The limiting reagent will determine how far the reaction can possibly go HIN Don t forget to enter the appropriate unit for pressure LET pn jan2 jan1 jani jan3 LET po jan4 jan3 jani jan3 LET terra pn 2 gt po 3 1 LET ansn pn 2 po 3 pn 2 LET anso pox4 3 pn 2 po 3 LET ansi0 choose terra ansn anso ANS ans10 2e sig 3 plus 2 minus 2 tol 3 wgt prob_val unit atm tries 10 DIS stdline 7 FRR okk kk kk kk kk kkk kk k kk kkk k Daaa kkk kk kkk kk k kk kk kk BEG prob_val 2 IMP Tools Problem By E Kashy kashy nscl msu edu No commercial use T items 5 properties Problems Text follows the next line directly Match each person with the most appropriate description If the first corresponds to B and 9 A PROBLEM SET WITH SOURCE CODE FOR SOME QUESTIONS the next 6 to C enter BCCCCCC LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET L
22. 2 M lt sub gt 2 lt sub gt LET TOne web T1i T_1 T lt sub gt 1 lt sub gt LET TIwo web T2 T_2 T lt sub gt 2 lt sub gt LET TThree web T3 T_3 T lt sub gt 3 lt sub gt LET picturei web parbox 1 in centerline epsfxsize 0 6 in hskip 05in epsffile usr users teacher CAPA45 nsc111f7 pictures Atwoodi eps lt IMG SRC nsc111f7 pictures Atwoodicrl gif ALIGN left width 95 gt DIS picture1 DIS tex parbox 2 4 in A DIS web frictionless massless frictionless massless lt a href nsci1if7 Links frictionless html gt frictionless massless lt a gt pulley is attached to the ceiling in a gravity field of 9 81 DIS mPs2_u Mass DIS MTwo is greater than mass DIS mOne The quantities DIS web Tn T_n T lt sub gt n lt sub gt and DIS tex g g are magnitudes For each statement select DIS sT1 DIS sTr1 DIS sT2 DIS sTr2 DIS sT3 DIS sTr3 DIS sT4 DIS sTr4 or DIS sT5 DIS sTr5 DIS tex DIS html lt br gt lt a href nsc111 7 Links webPulley html gt Motion of Masses on a Pulley lt a gt DIS html lt p gt lt br gt lt table gt lt tr gt lt td gt LET sia TTwo is TOne LET sib TOne is TTwo LET sic Statement 1 variation c LET sid Statement 1 variation d LET mixi random 1 2 1 LET ala 5 LET aib 5 LET aic 26 LET aid 26 LET s2a The magnitude
23. 2 Apr 22 10 24 ASCII drwx 2 teacher cai 512 Apr 4 14 41 HTML A WSL CT 1 teacher cai 769 Dec 10 13 37 HWTop drwxr xr x 2 teacher cai 512 Mar 26 09 56 Links drwx 2 teacher cai 512 May 22 14 59 PIN drwxr xr x 2 teacher cai 512 May 30 11 16 TeX rw r r 1 teacher cai 15 Dec 7 16 45 TeXfooter STWSLESTeS 1 teacher cai 657 Dec 12 17 11 TeXheader rw r r 1 teacher cai 3540 Apr 21 15 08 capa config rust r 1 teacher cai 246 Jan 8 14 28 classl rw r r 1 teacher cai 29 Aug 22 1994 goodbye msg rw r r 1 teacher cai 777 Feb 11 1993 help msg drwxr xr x 2 teacher cai 512 Dec 10 13 52 pictures drwxr xr x 2 teacher cai 512 Jan 6 12 14 records rw r r 1 teacher cai 362 May 22 1995 second login msg rw r r 1 teacher cai 16494 Jan 8 13 13 set1 qz rw r r 1 teacher cai 293 Sep 28 1994 third login msg rw r r 1 teacher cai 215 Jan 6 17 42 welcome msg Note Each class added to the system must contain the records directory created by the instructor The capa config classl TeXheader and TeXfooter are required files All msg files contain useful information for the students and can be edited to suit the instructors needs The HWTop is useful in formatting the assignment printed page and can also be edited The Links and pictures directories are specific to the sample class included in this distribution Change to the records directory cd records Type ls lag The directory will be empty However after you have run quiz
24. CAPA ID number class name section number set number and problem number respec tively Variables can be assigned their current values or they can be displayed directly as shown below LET capalDval capa_id Your CAPA ID is DIS capalDval DIS newline The class name entered at login is DIS class DIS newline Your section number is DIS section DIS newline This is part of problem set DIS set DIS mewline The current problem number is DIS problem DIS newline Output Your CAPA ID is 8659 The class name entered at login is nsci11f7 Your section number is 1 This is part of problem set 2 The current problem number is 2 student name and student number The latter is can be printed on quizzes when capa _id is used for identification to resolve ambiguities DIS name DIS student_number Output Student Jamie A12345678 Problem set open date due date and answer date DIS open_date DIS newline DIS due_date DIS newline DIS answer_date DIS newline DIS due_day DIS newline Output Tue Dec 3 1996 at 08 00 Wed Dec 11 1996 at 08 00 Thr Dec 12 1996 at 08 00 Wed Dec 11 1996 7 AUXILIARY FILES 46 7 Auxiliary Files Template files that facilitate problem coding and improve the legibility of the set source file have been written They have proven to be very useful for multiple choice conceptual problem coding and can be expanded and modified to suit a user
25. D is preferable Just enter lt return gt Enter a full name for user Instructor for course Enter a login group for user cai Enter another group that user should be a member of lt Return gt only if none Just enter lt return gt Enter a parent directory for user usr users Enter a login shell for user usr bin csh Do you wish to edit the auth file entry for this user n New password password NOTE The password will not be echoed to the screen Retype new password password 5 The compressed files for the CAPA system version 4 5 are to be placed in the directory usr users teacher CAPA45 6 Expand these compressed files by typing uncompress CAPA45 tar Z 7 Untar the directories by typing tar xvf CAPA45 tar The CAPA45 directory will then contain the following items drwxr xr x 7 teacher cai 512 May 21 13 41 drwxr xr x 3 teacher cai 512 May 21 13 42 drwxr xr x 4 teacher cai 512 May 20 12 39 LinkToBin drwxr xr x 5 teacher cai 512 May 20 13 05 PutInCAPA45 drwxr xr x 2 teacher cai 512 May 21 13 15 PutInClass drwxr xr x 3 teacher cai 512 May 20 12 59 PutInPublic drwxr xr x 3 teacher cai 512 May 20 12 34 PutInPublicWeb YWrr 7 1 teacher cai 3673 May 21 13 41 README txt S WN L ET 1 teacher cai 880328 May 19 17 21 manual45 ps 8 Print the file name README txt Follow the instructions for installation 1 INSTALLATION OF CAPA 2 9 The CAPA45 tar Z file may be recompressed and moved to another directory if you wis
26. ET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET tp1 Poet tp2 Painter tp3 Politician tp4 Philosopher tp5 Philanthropist sia Edgar Allen Poe The raven For Annie Annabel Lee sib Elizabeth Browning Sonnets from the portuguese Aurora Leigh sic Statement 1 variation c sid Statement 1 variation d mixi random 1 2 1 xla 1 xib 1 x1c 26 x1d 26 s2a John Keats 0de on Grecian Urn Ode to a nightingale s2b Percy Shelly To a skylark Prometheus unbound s2c Statement 2 variation c s2d Statement 2 variation d mix2 random 1 2 1 x2a 1 x2b 1 x2c 26 x2d 26 s3a Leonardo DaVinci s3b Claude Monet s3c Statement 3 variation c s3d Statement 3 variation d mix3 random 1 2 1 x3a 2 x3b 2 x3c 26 x3d 26 s4a Emanuel Kant 1724 1804 s4b Plato 427 347BC s4c Statement 4 variation c s4d Statement 4 variation d mix4 random 1 2 1 x4a 4 x4b 4 x4c 26 x4d 26 sba Andrew Mellon National Gallery of Art in DC s5b Alfred P Sloan GM president Sloan Kettering cancer Inst s5c Statement 5 variation c s5d Statement 5 variation d mix5 random 1 2 1 x5a 5 x5b 5 x5c 26 x5d 26 s6a Socrates 470 399 Know thyself Known thru Plato s writings s6b Statement 6 variation b 55 9 A PROBLEM SET WITH SOURCE CODE FOR SOME
27. F THE CAPA SYSTEM 17 4 Guided Tour of the CAPA System This section presents a guided tour through the CAPA software system by relying on the files that are part of the distribution package 1 Guided Tour of quizzer e Instructions for running the quizzer application Prior to opening the quizzer application set up your X server software to interact with your server See the section on using CAPA via eXceed X win32 or MacX Through your X server software open an rlogin or telnet session to your server Change directory to the directory in which the quizzer application is located For example cd CAPA45 Quizzer Start the application by entering the command quizzer e Select the Source of the problem set The quizzer main menu will be placed in the upper left corner of your screen Select File then open pop up screen will display your current directory The listing on the left side is the directories within your current directory The directory listing which consists of two dots is the path to the previous directory The listing on the right side of the pop up screen is the files in your current directory which have been filtered by the conditions listed in the top line of the pop up window The file filter which for quizzer will read qz selects only setz qz files for editing with the quizzer application Find the sample class file nsc111f7 Choose set1 qz files and click on the OK b
28. MSUCL 1076 A Computer A ssisted Personalized Approach CAPA for Assignments Quizzes and Examinations Solving Problems CAPA System User s Manual Version 4 5 Y Tsai E Kashy D J Morrissey N E Davis and G Albertelli Michigan State University East Lansing MI 48824 USA June 28 1997 Contents 1 Installation of CAPA 1 2 CAPA Software Components 8 3 Running CAPA via X Server software 13 4 Guided Tour of the CAPA System 17 5 Specification of CAPA Problem Sets 26 6 CAPA Functions 35 7 Auxiliary Files 46 8 Sample Login Instructions 48 9 A Problem Set with Source Code for some Questions 50 Copyright 1998 1997 by the Michigan State University Board of Trustees All Rights Reserved Original version by E Kashy Y Tsai D Thaler D Weinshank B M Sherrill M Engelmann and D J Morrissey 1 INSTALLATION OF CAPA 1 1 Installation of CAPA This Section describes how to install the CAPA software These instructions are written for an Alpha running Digital Unix 3 2D OSF1 1 Log in as the super user root 2 Change Directory to usr sbin 3 Enter adduser 4 A prompt will appear Follow prompt to enter information about the user The example used here is for the user name teacher in the group cai a b c s RU d e TR TR TS ec TS gt 5 We rH TR G Enter login name teacher Enter a UID For most cases using the default UI
29. X DIS tex vskip 16in DIS tex noindent bf DIS var_in_tex classforTeX DIS tex MSU Various Dates Due DIS var_in_tex due_dateforTeX DIS tex CAPA ID is DIS tex footnotesize DIS var_in_tex PINforTeX DIS tex DIS tex vskip 1in pagestyle empty LET DeptID College of Natural Science Michigan State University LET stdendlineA web vskip 05in hrule width3 55in height 6pt hfill vskip 07in noindent tiny lt Font color gray gt lt font size 1 gt lt i gt LET stdendlineB web dotfill CAPA copyright msu M lt font gt lt font size 2 gt CAPA amp 169 lt font gt lt font 1 gt msu lt i gt lt font gt lt font color black LET stdendline stdendlineA Dept ID stdendlineB e These lines contain ATEX commands for alignment and font specification They use arguments in the tex function for IATEX which are not displayed in the ASCII or Web versions The functions print the Student Name section number problem set number due date and CAPA ID e The LTRX source document created from TeXheader and HWTop i e the first lines in the file quiztemp tex file follow again some carriage returns have been added 5 SPECIFICATION OF CAPA PROBLEM SETS 29 documentstyle twocolumn epsf article textheight 25 9cm oddsidemargin 0 42in evensidemargin 0 42in textwidth 7 28in begin document vo
30. _aux fig9to9 i6p6 label3w Nof4aux examif_aux fig9to9aux i6p6aux label4auxw Nof5 examlof8 fig9to9auxw i6p6auxw label4w Nof5aux examlof8aux fig9to9w i7p5 label5auxw Nof6 exam2e_aux 113p13aux i7p5aux label5w Nof6aux exam2f_aux i2p5 i7p5auxw label6auxw Nof7 exam3f_aux i2p5aux 17p6 label6w Nof7aux figi0tol0auxw i2p5auxw i7p6aux label7auxw Nof8 figl0tol0w i2p6 i7p6auxw label7w Nof8aux figlitollauxw i2p6aux 19p9 label8auxw 7 AUXILIARY FILES 47 Nof9 figlitollw i2p6auxw i9p9aux label8w Nof9aux figl2tol2auxw i3p5 i9p9auxw label9auxw Rank4 figi2to12w i3p5aux label110auxw label9w Rank4aux figi3tol3auxw i3p5auxw label110w rank3aux 3 teacher CAPA45 nsc111f7 HWTop This file contains the header for assignments or exams as well as defining as stdendline standard end line The file must be edited to reflect the name of the course department and University Note that it is coded so that its information is not part of the text sent to vt100 terminals as this would waste several lines on the screen each time the first problem is displayed 8 SAMPLE LOGIN INSTRUCTIONS 8 Sample Login Instructions An example of login instructions for students is given on the following page 48 8 SAMPLE LOGIN INSTRUCTIONS Department of Physics and Astronomy M S U phy183f7 Instructions for Using CAPA CAPA implements a Computer Assisted Personalized Approach for assignments quizzes and examination Using CAPA in this class is OPTIONAL Your Name and a
31. a student logs in c NS Resetting the database header with new dates and problem weights will not corrupt the student records as long as the number of questions has not changed The dates and times must be entered with the numerical format of MM DD YY and HH MM on the appropriate lines The hours of the day are based on a 24 hour clock This panel has a cancel button to exit the window without changing the dates already present in the records folder 4 GUIDED TOUR OF THE CAPA SYSTEM 19 e Generate quiztemp dvi file necessary for printing Having successfully previewed the questions from the set1 qz file in TeX format select Create dvi from the main quizzer menu The creation of a dvi file is a necessary step before printing any TEX document There are no quizzer errors in the original example file and quizzer will have generated a file called quiztemp tex Note In the NeXT version this is named sample tex in the previous steps including everything needed to typeset the question file After selecting the Create dvi option you will again be prompted to select either a random student or a specific student determined by student number quizzer invokes the LTEX program to typeset the quiztemp tex file There are no ATRX syntax errors in the example file so quizzer will create the quiztemp dvi file The quiztemp dvi file is automatically opened and displayed in the X windows version once it is created This process
32. appear on paper whereas only delta H can be shown on the screen using ASCII characters The general form of the function to be evaluated is tex TeX ASCii For example DIS tex Delta H delta H would be used in the setz qz file to display AH on the printed paper The first argument is put into the TEX version and the second into the ASCII version Note that the DIS command mentioned above is used to evaluate an expression amid text 3 html in CAPA problems There are two functions available for specifically entering html code into your problem sets to improve the Web display of the problem set over that of ASCII text If you do not specify html code then the ASCII code will be displayed on the web document The first html specific function is the web function which has similar usage to the tex function The web function has three fields for entry They are web ASCII TX html The second function html can include anchors links or text to be displayed only on the web document An example of the use of this function is DIS html lt br gt lt img src teacher nsc111f7 pictures Ball gif gt 4 Grammar Specifications 5 SPECIFICATION OF CAPA PROBLEM SETS 27 The end of line character produced by the Return key plays a critical role in the setz qz files It is used to signify the end of text and mathematical expressions Since single end of line characters are ignored by TEX careful
33. appropriate file or files in the usr lib terminfo directory tree consult your system administrator for details Be pre pared to make similar changes in case other terminal emulation programs at your site use their own non standard terminal type nomenclature 25 The CAPA system should now be completely installed You may start writing problem sets but we recommend reading the system description and taking the guided tour by G Perkins MSU P A Dept 1 INSTALLATION OF CAPA 6 The whole package for NeXTStep Operating system is essentially the same as described previously the difference in applications is that Quizzer and Grader are named Quizzer app and Grader app respectively The following items describe how to create an account on the NeXTStep Operating system Version 3 3 1 Log in as the super user root 2 Create a new user group called cai Use the menu obtained from opening the file NextAdmin UserManager in the File Viewer and double clicking on its icon a b select Group c In the domain window click OK select New to create a new user group d type cai in the group name field e select Save to save the user group 3 Create an Instructor account called teacher using the menu of NextAdmin UserManager a select User b select New d select Groups c select Local as user type e select cai in the User Group Info window g set default group as cai
34. ate tex files with both questions and answers for sections 2 to 3 sets 2 to 5 Example 2 qzparse Ha stu A12345678 set 3 will generate html files with answer only for student A12345678 set 3 T tex mode H html mode A ascii mode default question only a answer only b both question and answer Sec 3 for section 3 Sec 3 7 from section 3 to section 7 Stu A12345678 for a specified student Set 1 output set 1 Set 3 4 output from set 3 to set 4 o output_filename_with_absolute_path only for a student re oat This is version 4 5 Feb 11 1997 a For preparing TeX files for set 4 papers for all students in sections 1 thru 45 qzparse T sec 1 45 set 4 b For preparing papers which only contain the answers of a particular set for all students in section 3 qzparse Ta sec 3 set 4 c For preparing set 1 thru 5 for a student with student number A87654321 qzparse T stu A87654321 set 1 5 Files qzparse uses the same files as quizzer In addition running qzparse will create a TeX sub directory in the class directory to house the qzparse output files i e sectioni set1 tex a87654321 tex etc The tex files must be passed through ATEX and the dvips codes to make postscript files for printing See guided tour of qzparse for explanations on how this is accom plished 3 capalogin Function The main function of the capalogin code is to handle remote sessions of the students who access CAPA with VT100
35. ations and edit your files on the CAPA host This section describes examples for using a PC or a Macintosh computer to edit files and run the quizzer application e Running CAPA via eXceed NOTE These instructions are for using eXceed Version 4 0 from a PC running Windows NT in con nection with a DEC Alpha host running OSF1 Procedure To set up eXceed to automatically open upon start up of your PC 1 Install the software following the directions from the producer 2 Open the path C Winnt Profiles Username Start Menu Programs Startup from My Com puter 3 Open the path C Winnt Profiles Username Start Menu Programs 4 Highlight the eXceed exe by single clicking on it From the menu bar choose File then Create Shortcut 5 Drag the Shortcut you have just created into the Startup folder you opened previously 6 When you reboot your machine eXceed will execute upon startup To set up your CAPA server as an xhost Two methods 1 The simplest way is to leave the host txt file in eXceed as deactivated This allows connection with any host as X server 2 If you wish you can specify each host by creating the host txt file in eXceed a From the Windows NT main menu bar choose Start choose Programs choose Exceed then choose X Config b Double click on the Security icon c A pop up menu will appear where you can specify using the host txt file by clicking on the associated radio button d You can choo
36. b ANS i5p5right wgt probval tries 5 i5p5right is a string variable previously defined The order is essential but not case sensitive AdcEb adceb ADCEB are equivalent c ANS letters Str MC wgt prob_val tries 5 letters is a string variable previously defined The command Str MC accepts any order of the correct responses That is abc is equivalent to acb etc d ANS letters Str CS wgt prob_val tries 5 letters is a string variable previously defined The order and the case are required as it is an exact string comparison 10 END END or END stdendline prompts the parser to stop parsing and ignore all input characters beyond that command Material between the last ANS and END is not included in the output however string variables can be defined and constructed All sets should include END stdendline so that both on paper and on the Web the department is identified and the copyright nature of the CAPA software is indicated The string for stdendline is created in the HWTop file in the class directory and can be edited by users 11 The CAPA system counts the number of problems in a problem set by counting the number of proper answer lines If there is an error in coding and the answer can not be evaluated then the problem is not counted by quizzer 6 CAPA FUNCTIONS 41 Table of Intrinsic Functions names are case sensitive Description Sample quizzer input and output for printing sin x cos x tan x a
37. choose Remote then choose New Command A New Remote Command Screen will pop up In the field Remote Command enter source etc csh login source cshrc setenv DISPLAY 35 8 33 61 0 0 cd usr users teacher CAPA45 Quizzer quizzer NOTE Enter the IP address of the machine you are using For this example 35 8 33 61 is used In the field Command Name enter the name you want your command to be called Example quizzer In the field Display choose Color Rootless In the field Output choose Save In the field Username enter your username for access to your host Example teacher In the field Password enter your password for access to your host Select Host Another pop up screen will appear In the field Method choose MacTCP Tool 11 12 13 14 In the field Host name or address enter your hostname Example capai nscl msu edu Select OK The second pop up window will disappear Choose Set The original pop up window will disappear From the menu bar choose Remote Select the new command which should show as you have named it on the bottom of the choicelist under Remote You will be prompted to enter your password select OK The quizzer main menu will appear in the upper left hand corner of your screen You can then edit and preview your files through the quizzer application Be certain to quit the quizzer application when you are finished editing 4 GUIDED TOUR O
38. e screen and the main CAPA menu near the center Enter S or s as the menu is not case sensitive to view the student s summary for the course No credit should have yet been earned Enter M to return to the main menu Enter T to try the problem set Enter 1 to try problem 1 Problem 1 of set 1 will appear on the screen Follow the instructions noting that if you put in a wrong answer a H to receive a hint may become an option Note that the colon in this screen differentiates a command from a problem answer After answering a few questions Enter m to return to the main menu Enter s You can now see the updated student summary Enter x to exit This ends the session records the student responses and closes the connection to the server The goodbye msg file is then displayed e Sample login B Open a web browser session into the server Select the sample class nsc111f7 from the pop up menu Enter A87654321 for the student number Note that you must click in the window Enter the CAPA ID as was printed on the homework page for student number A87654321 The CAPA ID number must correspond to the one printed on the problem set for this student or the login will not be allowed The next document you will see will be the Main Menu where you can select to try the current problem set Set 1 will appear on the screen 4 GUIDED TOUR OF THE CAPA SYSTEM 22 Note that if you put in a wrong answer a hint wil
39. efinitions hints explanation and solution for a given problem is indicated by the position of the ANS command Lines longer than 80 characters are wrapped around to the next screen line at the nearest break between words on the screen by the quizzer editor Note A total of 37 lines are available for display on the VT100 terminal This is divided into two pages with 20 lines available on the first page and 17 available on the second with three lines repeated for reading consistency Hints and explanations are displayed on separate screens each of which can have 20 lines There are no limits on the printed or Web versions 3 Variable Definitions and Expressions BEG BEG is simply an alias for LET and is used to begin each problem in the following manner BEG prob_val 3 This sets the variable prob_val to 3 prob_val can then be used to define the weight of the problem in the ANS specification Weights are integers and can range from 0 to 9 points 4 The Import function IMP The IMP filename function calls and uses the contents of the specified file however the content is not displayed in the source file The IMP command requires a string input either the string filename or a variable which provides the string filename IMP HWTop will import the HWTop file from the local directory for files in other directories proper UNIX paths must be included as part of the filename e g IMP Tools StdMacros The file ma
40. es Do not change the names of the statement variables e g sta or the names of the answer variables e g ata If you wish to make major changes in tool formats it is recommended that you include the auxillary file within the setz qz rather than using the import IMP command The choices are loaded into specific statement variable names i e LET sta The motion of M is simple harmonic motion that are correlated to the answer variables for correct LET aia 1 or incorrect LET aia 2 In this example the variable sib is not used in the problem so its answer a1b is not changed from the value 26 In all the preformatted MCTools files we have used 26 to indicate an unused answer statement e The file Nof3 can be simply copied from the CAPA4 MCTools directory and pasted into the problem set file The Include Button in quizzer allows a user to scan the directory structure and perform that function e The various statements and their variations are typed into the sla s2a etc and corresponding values for ala a2a etc indicating if the variation is correct must be entered e The text of the new problem should be typed in e Certain variables kg_u NPm_u stdline are not defined within the problem Because they are used often they were defined in files imported once at the start of the set IMP Tools StdUnits to simplify problem writing e The middle integer in mix3 random 1 3 1 corresponds to the number of variatio
41. es and the database the qzparse code is used to print problem sets in batch mode after they have been created Similar in functionality to capalogin both capahtml and capasbin are programs executed by web server when a student uses web browser to answer the problem set 1 quizzer e Location The quizzer application can reside in any directory and can be linked to a directory within the users path For example linking quizzer to usr local bin would make the application available to all users on the machine e Function The major functions of the quizzer application are Create new problem set files named set1 qz set2 qz etc containing ASCII text only Edit existing question files using ASCII text only Calculate and preview the answers generated by the problem set code Preview the resulting problem set which will be typeset with IATEX Preview the resulting problem set as would be seen by students when they log in through a terminal window session Enscript Mode Preview the resulting problem set showing the coded HTML flags Generate the database file setx db which contains the time constraints on the availability of the problem sets to students for a given assignment Each problem set has a opening date a due date and a date when answers are available Print the problem sets for specific students with the CAPA IDs CAPA Identification Numbers needed to login The CAPA ID identifies the set and we recommend printing t
42. ffset 4 1cm setcounter page 1 newcommand capa s1 C kern 10em raise 00ex hbox rm A kern 22em s1 P kern 14em kern 01em rm A newenvironment choicelist begin list setlength rightmargin Oin setlength leftmargin 0 13in setlength topsep 0 05in setlength itemsep 0 022in setlength parsep 0in setlength belowdisplayskip 0 04in setlength abovedisplayskip 0 05in setlength abovedisplayshortskip 0 04in setlength belowdisplayshortskip 0 04in end list noindent large bf Student Jamie hfill Section Large 1 vskip 1lin noindent large it Sample capa Questions hfill Set 1 vskip 16in noindent bf nsc111f 7 MSU Various Dates Due Fri May 15 1998 at 08 00 CAPA ID is footnotesize 5743 vskip 1in pagestyle empty Note that all of the CAPA functions have been evaluated before the file is written e The result from Latex and dvips processing is a student copy which looks like Student Jamie Section 1 CAPA Natural Science Set 1 nsc111f7 MSU 1995 Due Sun Sep 1 1996 at 08 00 CAPA ID is 8755 e The remainder of the setz qz file contains the questions Each question typically consists of a block of variable definitions the text for the question including evaluation of imbedded data the coding of the answer and optionally a comment a hint and an explanation 5 Example 1 A complete example of a very simple CAPA problem is given be
43. for the set numerical value would be given by ANS variable tol 0 5 tries 5 wgt 1 The format of a percentage tolerance would be given by ANS variable tol 1 1 tries 5 wgt 1 The format for the tolerance as a variable would be ANS variable tol TolVar tries 5 wgt 1 Problem Weight The problem point value or weight is be set by ANS variable wgt 2 tries 5 The problem value can be an integer value between 0 and 9 This can be specified at the beginning of a problem by BEG prob_val 3 and having this value called in the ANS function by ANS variable wgt prob_val tries 5 Significant Figures If unspecified the maximum number of allowed significant figures is 15 The number of acceptable significant figures can be specified by the following format ANS variable sig 4 plus 1 minus 1 tries 5 wgt 1 This sample format will accept 3 4 or 5 significant figures in the answer Units A file capa config in the class directory lists all acceptable units and their relationships and that file can be edited by the instructor All SI units are included A typical format is ANS perimeter 3f tol 0 009 wgt prob_val tries 10 unit cm sig 4 or ANS area 2f tol 1 1 wgt prob_val tries 6 unit cm 2 sig 3 plus 1 A file that shows the way units are entered is provided for the Web version Links UnitFmt html Its content can be provided as a HINT in both the Web or VT100 student options Hand Grading A problem can be desi
44. gnated as hand graded only For this case students are not allowed to answer via telnet or web sessions and the question is graded by the instructor The format for this is ANS variable HGR on tries 1 wgt 1 6 CAPA FUNCTIONS 39 f Partial Credit A multiple point problem can be specified to have partial credit This attribute has the same functionality of HGR on in that students cannot login to answer the question The format for this is ANS variable wgt 9 PCR on tries 1 This allows an instructor to manually enter a point value between 0 and 9 through the grader application g Tries The number of attempts to enter a correct answer can be limited to an integer value less than 99 The format is ANS variable tries 35 wgt 1 Errors in significant figures or error in units will not decrease the number of remaining tries but they must be satisfactory before a Correct or Incorrect is given The student receives a message near the answer field stating the number of attempts and the total number of tries available for each problem in which the tries x has been specified A warning message is displayed when only one try remains e Integer answers can require the exact answer or have an integer as tolerance a LET AnsVar 34 ANS AnsVar wgt 1 tries 5 Only literally the number 34 will be accepted as correct b ANS Sumx wgt 1 tries 5 Assuming that Sumx is a previously calculated or defined integer only its exact value will be acce
45. h 10 After completing the items included in README txt check the following directories for content and 11 12 permissions File sizes may differ capa2 nscl msu edu gt pwd usr users teacher CAPA45 capa2 nscl msu edu gt ls la total 1277 drwxr xr x 12 teacher cai 512 Jun 3 07 59 drwxr x x 12 teacher cai 1024 Jun 10 07 18 drwxrwxrwx 2 teacher cai 3584 Jun 3 22 49 MCTools drwxrwxrwx 2 teacher cai 512 May 20 11 20 Tools rwsr xr x 1 teacher cai 245760 May 20 18 54 capalogin drwxr x x 10 teacher cai 1024 Jun 8 21 46 nsc1i11f7 Important Note that capalogin should have permissions rusr xr x Note specifically the s in the fourth position It must be there for students to be able to login If it is not there enter the command chmod u s capalogin You may need to login as root for this change to take place Check the following directories for content and permissions File sizes may differ capa2 nscl msu edu gt pwd usr users teacher PublicWeb CAPA capa2 nscl msu edu gt 1s lag total 11 drwxrwxr x 4 teacher cai 1024 Apr 28 14 32 drwxrwxr x 3 teacher cai 1024 Apr 28 14 32 rw rw r 1 teacher cai 2894 Apr 16 09 32 GLabel class drwxr x x 2 teacher cai 1024 Apr 28 14 36 Icons drwxrwxr x 3 teacher cai 1024 Apr 28 14 39 capa bin rw rw r 1 teacher cai 1336 Apr 28 15 49 class html rw rw r 1 teacher cai 254 Apr 16 09 31 help html capa2 nscl msu edu gt pwd usr users teacher PublicWeb CAPA capa b
46. hat button after submitting an answer which is incorrrect will re submit the incorrect answer and use up one Try 9 A PROBLEM SET WITH SOURCE CODE FOR SOME QUESTIONS 50 9 A Problem Set with Source Code for some Questions An example of a set and CAPA source is given on the following pages Two sided duplex laser printing has been found to be very useful when making assignments or exams that require more than one page In physics and chemistry several users have agreed to share and exchange problems for use in their classes In physics this is evolving into the exchange of local physics libraries i e MsuPhysLib among users Authors retain commercial rights A comment line within each problem identifies the author An e mail address is useful if some question about the problem or its coded solution arises Users are also free to edit and adapt the problem for their classes 9 A PROBLEM SET WITH SOURCE CODE FOR SOME QUESTIONS Student Jamie Section 1 Sample CAPA Questions Set 1 nsc111f7 MSU Various Dates Due Fri May 15 1998 at 08 00 CAPA ID is 5743 1 lpt The following are possible ways to express the quantity 0 492 Give ALL correct answers i e B AC BCD Note 3 45E 8 is a way you can enter the num ber 3 45 x 1078 in most computers A 4 92B 1 B 49 2x 107 C 0 492E 1 D 0 000492E 3 E 0 00492 x 108 F 0 0492E 1 2 lpt Calculate the perimeter of a rectangle with a length of 21 5 cm and a w
47. he perimeter of a rectangle is the length of its 4 sides The perimeter is a length and units are required EXP Add the length and width and multiply by 2 ANS peri_cm 1f tol 0 09 wgt prob_val tries 10 unit cm DIS stdline IV TECSLLLLLLLILLLLLIELLLCLCLCLELCLCLLLLLES 7 PERRO CASO ACEO IGE ICC BEG prob_val 1 IMP Tools Problem By E Kashy kashy nscl msu edu No commercial use LET length random 12 5 23 6 1 0 LET width random 36 48 1 Calculate in DIS cm_u the perimeter of a rectangle with a length of DIS length 1f DIS cm_u and a width of DIS width 0f DIS mm_u DIS html lt a href nsc111f7 Links IN_tries html gt Instructor Note Number of tries lt a gt LET peri_cm 2 length width 10 0 HIN The perimeter of a rectangle is the sum of the lengths of its 4 sides Since the answer required is in cm HIN the answer is just a number EXP Add the length and width and multiply by 2 ANS peri_cm 1f tol 0 09 wgt prob_val tries 5 DIS stdline PEAR AGOGO AGG A I CK PERRO CAG OAC IO IG ICC BEG prob_val 1 IMP Tools Problem 9 A PROBLEM SET WITH SOURCE CODE FOR SOME QUESTIONS 54 By E Kashy kashy nscl msu edu No commercial use LET length random 12 5 23 6 1 0 LET width random 36 0 48 0 1 0 Calculate the perimeter of a rectangle with a length of DIS length 2f DIS cm_u and a width of DIS width 1f DIS mm_u DIS html lt a href nsc111 7 Links IN_SigFigs
48. hilanthropist John Keats D Poet E Philosopher Andrew Mellon 3 4 5 Emanuel Kant 6 7 Harry S Truman 51 11 2pt List the following in order of increasing lengths from shortest to longest If B is shortest then A then C and D is longest enter BACD A 40 mm B 1 00 inch C 0 10 ft D 0 060 m 12 2pt Which of the following 20th century vice pres idents served later as president of the United States Give all correct answers A CE BDF etc A James S Sherman NY B Thomas R Marshall IN C Lyndon B Johnson TX D Walter Mondale MN E Harry S Truman MO F Calvin Coolidge VT 13 lpt Use the 1 1 scale given on your paper and es timate the thickness of the paper used in your textbook cm 1 2 3 4 5 ut 14 lpt The graph shows the function Y ax Make a careful determination of the value of a 10 QO 10 3 2 1 0 1 2 3 x 15 2pt A fisherman and his young nephew are in a boat on a small pond Both are wearing life jackets The nephew is holding a large floating helium filled balloon by a string Consider each action below independently and indicate whether the level of the water in the pond R Rises F Falls S Stays the Same C Can t tell If in the first the level Rises and the in second it Falls and for the rest one Cannot tell enter RFCCC A The nephew pops the balloon B The nephew gets in the water looses
49. his number on student papers Print the problem sets for a specific section Print the problem sets for the whole class If the class is very large we recommend printing the sets in batch mode Print answer only papers to facilitate the hand grading of CAPA based examinations e Files seti qz TeXheader TeXfooter capa config and classl Problem set files are the files containing the coded problems created by instructor for each given assignment They are labeled set1 qz set2 qz etc The problem sets must start with number 1 and continue in increasing numerical order without omissions There is a fifty question limit within each problem set TeXheader and TeXfooter specify the information needed by the ATEX formatter to create the top and bottom of the document respectively The nsc111f7 example file contains copies of the TeXheader and TeXfooter files which you can copy to your class and modify as necessary 3 An automated scanning system for personalized examinations and quizzes has also been developed 2 CAPA SOFTWARE COMPONENTS 9 capa config is the unit configuration file which contains the standard SI units with all prefixes It also contains a list of derived SI units The file may be edited maintaining file format to include other units at the instructors descretion classl is the class list file for each specific class The maximum number of students in one class is 4096 The format of the entries in
50. hoed to the screen Retype new password password 16 The password file must now be edited to remove the class password To do this cd to usr sbin Enter vipw Use the arrow keys to position the cursor over the first letter of the encoded password for the class user name For example a typical password file entry looks like this nsc111f7 3ou7NE4pQTMTw 4347 26 Natural Science College 111 Fall 1997 usr users teacher CAPA45 nsc111f7 usx Note that the fields are separated by colons The description of the fields is as follows username password UID GID Full Name Parent Directory Login shell vi editing is best left to users familiar with vi INSTALLATION OF CAPA 4 17 18 19 20 21 22 d Remove the password from this listing Do this by positioning the cursor over the first letter or character of the password field then delete by pressing the x key Exit the vi editor by typing wq The modified listing should then look like nsc111f7 4347 26 Natural Science College 111 Fall 1995 usr users teacher CAPA45 nsc111f7 usr users teacher CAPA45 capalogin Exit the root account and login as teacher Change directory to the sample class cd usr users teacher CAPA45 nsc111f7 Type ls lag The last files in the teacher CAPA45 nsc111f7 directory will look like Again file sizes will differ drwxr x x 10 teacher cai 1024 Jun 8 21 46 drwxr xr x 12 teacher cai 512 Jun 3 07 59 drwxsssss5 2 teacher cai 51
51. html gt Instructor Note Significant Figures lt a gt LET peri_cm 2 length width 10 0 HIN The perimeter of a rectangle is the length of its 4 sides HIN Careful with units AND with the number of significant figures EXP Add the length and width and multiply by 2 ANS peri_cm 2f tol 0 009 wgt prob_val tries 10 unit cm sig 4 DIS stdline PEAR AAO AGOGO GG GE ICC Below are problems 9 10 11 12 Problems 10 11 and 12 use pre coded templates LD RH RH kkk HE kk kk kkk kk k kk kk k k Daaa k kk kk kk kkk kk k kk kkk k LET prob_val 1 IMP Tools Problem a limiting reagent problem for a gas phase reaction from p w w hunter LET jani random 1 0 6 5 1 0 LET jan2 random 1 0 6 5 1 0 LET jan3 random 1 0 6 5 1 0 LET jan4 random 1 0 6 5 1 0 LET n2o web N20 N _2 0 N lt sub gt 2 lt sub gt 0 LET 02 web 02 0 _2 0 lt sub gt 2 lt sub gt LET no2 web N0O2 NO _2 NO lt sub gt 2 lt sub gt LET rxnasc 2N20 g 302 g gt 4N02 g LET rxntex rm 2N_20_ g 30_ 2 g rightarrow 4N0_ 2 g LET rxnhtml lt center gt 2N lt sub gt 2 lt sub gt 0 lt sub gt g lt sub gt 30 lt sub gt 2 g lt sub gt gt 4NO lt sub gt 2 g lt sub gt lt center gt Consider the reaction of nitrous oxide DIS n20 with oxygen DIS o2 to form nitrogen dioxide DIS no2 DIS web rxnasc rxntex rxnhtml A DIS jani 1f liter vessel contains DIS n20 gas at DIS jan2
52. i log sectioni seti tex section2 seti dvi section2 set1 tex sectioni seti dvi sectioni seti ps section2 seti aux section2 seti log section2 seti ps The 1s command lists the files in the current working directory As can be seen above there are five files created for each section The two ps files contain problems sets for all students in sections 1 and section 2 Two sided printing is very useful for sets which fit on 2 pages Here set 1 fits on one page and is printed below on the local printer e capa2 nscl msu edu gt lpr P Local Printer sectioni seti ps e capa2 nscl msu edu gt lpr P Local Printer section2 seti ps 5 SPECIFICATION OF CAPA PROBLEM SETS 26 5 Specification of CAPA Problem Sets This Section describes the CAPA grammar and syntax Examples show how to code problems and create problem sets 1 General Description The source code for the problems to be solved by students are contained in files labeled setx qz where is the problem set number These files contain all the information needed for each problem as well as the information for the printed hard copy the computer screen presentations and the web display of the problem set In the simplest case one might imagine that the file contains just the text to specify the problems for the students However each paper is individualized and must contain variable information such as the student s name the due date of the set etc CAPA uses the DIS command to display f
53. ices vary In this example a set of variables is loaded for each student and displayed in the text of the problem The students are then given three statements which are generated from up to four versions 7 POR BABA OEAG OGG IG RA GE I BEG prob_val 1 IMP Tools Problem By E Kashy kashy nscl msu edu No Commercial Use CAPA4 MCTools Nof3 Select N correct of 3 Statements A mass M 0 16 DIS kg_u is on a smooth horizontal surface negligible friction It is attached to a spring with spring constant k 15 3 DIS NPm_u The mass is displaced from its equilibrium position x 0 by a distance of 0 14 m 5 SPECIFICATION OF CAPA PROBLEM SETS 33 x 0 14 m and then released from rest The next 3 lines are the answer format instructions for the students Give all of the correct answers i e A or BC or ABC LET sia The motion of M is simple harmonic motion LET sib Statement 1 variation b LET sic Statement 1 variation c LET sid Statement 1 variation d LET mixi random 1 1 1 LET ata 1 LET a1b 26 LET alc 26 LET a1d 26 LET s2a The amplitude varies with time LET s2b The amplitude doesn t vary with time LET s2c Statement 2 variation c LET s2d Statement 2 variation d LET mix2 random 1 2 1 LET a2a 2 LET a2b 1 LET a2c 26 LET a2d 26 LET s3a The frequency of oscillation is independent of k LET s3b The Period of oscillation is independent of k
54. idth of 48mm Enter units 3 lpt Calculate in cm the perimeter of a rectangle with a length of 18 5 cm and a width of 44mm 4 lpt Calculate the perimeter of a rectangle with a length of 22 50 cm and a width of 44 0 mm 5 lpt The lower portion of a flag pole has a height of 2 245 m and is red Above it the pole is white for a height of 167 2cm The top section is blue and has a height of 1756mm Calculate the total height of the pole 6 lpt Calculate the area of a rectangle with a length of 13 0 cm and a width of 100 mm 7 lpt Use your calculator to find the square root of 5 377 x 1077 8 lpt Calculate the volume of a spherical balloon which has a surface area of 0 0597 m 9 lpt Consider the reaction of nitrous oxide N2O with oxygen O2 to form nitrogen dioxide NO 2N20 g 302 g ANO2 g A 1 0 liter vessel contains N2O gas at 2 0 atm pressure A second vessel 5 0 L in volume contains oxygen at 2 0 atm pressure Now suppose that the two vessels are connected by a pipe of negligible volume and the two gases mix and react to produce as much nitrogen dioxide as possible As sume that the temperature remains constant What is the pressure in the apparatus at the end of the reaction 10 2pt Match each person with the most appropriate description If the first corresponds to B and the next 6 to C enter BCCCCCC 1 Elizabeth Browning A Politician 2 Leonardo DaVinci B Painter Socrates C P
55. ies 10 DIS stdline 2 66 8 ee HER HER ER ER CE Problems 20 and 21 are not shown The source code for the complete set is in the distribution package 7 FOO GO I AGE END stdendline 60 9 A PROBLEM SET WITH SOURCE CODE FOR SOME QUESTIONS 61 References and Additional Information The CAPA homepage URL is http www pa msu edu educ CAPA It includes the document An Introduction to CAPA A Versatile Tool for Science Education in postscript format This document outlines hardware specifications for CAPAas well as licensing information Technical Support For technical support email nedavis nextdjm nscl msu edu or call 517 333 6396 Other e mail resources are kashy nscl msu edu morrissey nscl msu edu Acknowledgments Many instructors graduate students and undergraduate students at MSU and other institutions have participated in the CAPA project Their work and suggestions have helped to make CAPA a better tool The support for CAPA development or operation from the following is gratefully acknowledged The College of Natural Science The Office for Computing and Technology The Department of Physics and Astronomy The Department of Chemistry The Alfred P Sloan foundation The National Superconducting Cyclotron Laboratory NSCL The US Department of Agriculture The MSU Provost The advice of R Fox K Berhooz and B Pollack of the NSCL and G Perkins of the Department of Physics and Astronomy has been of
56. in 0 42in textwidth 7 28in begin document voffset 4 1cm setcounter page 1 newcommand capa sl C kern 10em raise 00ex hbox rm A kern 22em s1 P kern 14em kern 01em rm A newenvironment choicelist begin list setlength rightmargin Oin setlength leftmargin 0 13in setlength topsep 0 05in setlength item sep 0 022in setlength parsep 0in setlength belowdisplayskip 0 04in setlength abovedisplayskip 0 05in setlength abovedisplayshortskip 0 04in setlength belowdisplayshortskip 0 04in end list The HWTop file should be at the top of each problem set It includes the student name section number class title assignment number due date and student s CAPA ID for the assignment The actual HWTop file information used in nsc111f7 is shown below together with a magnified example of the resulting output Note In the actual set the carriage returns are omitted from the header information 5 SPECIFICATION OF CAPA PROBLEM SETS 28 LET nameforTeX name LET due_dateforTeX due_date LET PINforTeX capa_id LET sectionforTeX section LET setforTeX set LET classforTeX class DIS tex noindent large bf DIS var_in_tex nameforTeX DIS tex hfill Section Large DIS var_in_tex sectionforTeX DIS tex FI DIS tex vskip 1in DIS tex noindent large it Sample capa Questions hfill Set DIS var_in_tex setforTe
57. in capa2 nscl msu edu gt 1s lag total 679 drwxrwxr x 3 teacher cai 1024 Apr 28 14 39 drwxrwxr x 4 teacher cai 1024 Apr 28 14 32 rwxr xr x 1 teacher cai 278528 May 8 16 57 capahtml ENST 1 teacher cai 775 Jun 4 12 41 class conf drwxrwxr x 2 teacher cai 1024 Apr 28 14 39 teacher rw rw r 1 teacher cai 124667 Jun 10 15 33 web_access log capa2 nscl msu edu gt pwd usr users teacher PublicWeb CAPA capa bin teacher capa2 nscl msu edu gt 1s lag total 282 drwxr xr x 2 teacher cai 512 May 8 16 58 drwxr xr x 8 teacher cai 512 Jun 4 12 10 rwsr xr x 1 teacher cai 278528 May 8 16 57 capasbin 1 INSTALLATION OF CAPA 3 13 Important Note that capasbin should have permissions rwsr xr x Note specifically the s in the fourth position It must be there for students to be able to login If it is not there enter the command chmod u s capasbin You may need to login as root for this change to take place 14 Check the following directories for content and permissions File sizes may differ capa2 nscl msu edu gt pwd usr users teacher Public nsc111 7 capa2 nscl msu edu gt 1s lag total 2 drwxr xr x 2 teacher cai 512 Mar 26 09 44 drwxr xr x 9 teacher cai 512 May 20 10 43 lrwxrwxrwx 1 teacher cai 40 Mar 26 09 07 Links gt usr users teacher CAPA45 nsc111f7 Links lrwxrwxrwx 1 teacher cai 43 Mar 26 09 44 pictures gt usr users teacher CAPA45 nsc111f7 pictures capa2 nscl msu edu gt pwd usr local bin ca
58. is will generate a listing of all machines able to run XDMCP mode SX WIN32 StarNet Communications 3 RUNNING CAPA VIA X SERVER SOFTWARE 15 Open the X Win Util green choose Edit Sessions choose New Session Enter the name you wish to use for your session Example capai Select XDMCP connect mode Enter the hostname Example capai nscl msu edu Select OK You can now run your X Server sessions by clicking on X Win blue choosing Sessions and choosing the session name you have just created Your screen should then appear exactly as if you were sitting at the monitor of your host machine with your Windows NT desktop in the background Change directory to teacher CAPA45 Quizzer Enter quizzer The quizzer main menu will appear in the upper left hand corner of your screen You can edit and preview your files through the quizzer application Be certain to quit the quizzer application when you are finished editing e Running CAPA via MacX NOTE These instructions are for using MacX Version 1 2 in connection with a DEC Alpha host running OSF1 Procedure To open an xterm session into the server 1 ON Open MacX by double clicking on the MacX Icon This will automatically open a document called Untitled From the menu bar choose Remote then choose New Command New Remote Command Screen will pop up In the field Remote Command enter usr bin X11 xterm display 35
59. l be a printer specification i e Pprintername Other options which can be entered here can be found by searching the Unix manual pages through a line command on your server The manual page can be read by entering man lpr during a regular telnet session into your server g After the printing has finished note the CAPA ID number at the top of the printed page Preview the example question file in Web mode This mode will generate a preview window diplaying the web specific version of your source file This is not an html file If you have not specified any functions for the web separately from those for the ASCII version Enscript then this preview will be identical to the Enscript preview Web specific functions are described in the Table of Intrinsic Functions Other quizzer main menu items All quizzer submenus can be torn off The submenus have a dashed line at the top If you click on the dashed line the submenu becomes a separate static window which can positioned anywhere on your screen 4 GUIDED TOUR OF THE CAPA SYSTEM 20 File This was discussed above but also includes Open Reference File a useful option allowing copying and pasting from any file into the quiz set Edit This submenu contains the standard editing commands you will find useful Find This submenu allows you to call up either a find panel or a line range window The find panel allows you to find and or replace using several diffe
60. l be displayed if it has been included in the code Note that the problem numbers are listed across the page at the top and bottom of the set You can click on the problem number and go directly to that problem Once you re finished previewing this set you can choose to Exit the system 4 GUIDED TOUR OF THE CAPA SYSTEM 23 G ader 3 Guided Tour of grader Prior to opening the grader application set up your X server software to interact with your server See Section 3 on using CAPA via eXceed X win32 or MacX Through your X server software open an rlogin or telnet session to your server Change directory to the directory in which the grader application is located For example cd CAPA45 Grader Start the application by entering the command grader The grader main menu will appear in the upper left corner of your screen Choose File then Specify Class A pop up window will appear to let you specify the class directory in this case nsc111f7 You will probably need to go back one directory by double clicking the Highlight the nsc111 7 directory then click OK nsc111 7 now appears in the Title Bar near the top of the grader window Specify a section number and problem set number Type the section number in the text entry panel and enter with lt return gt Use section number 1 for the present example Enter the number of the problem set that you would like displayed in the panel below Use problem set numbe
61. l call using the MichNet network is also possible Check with the Prof 1 CAPA 1993 1997 MSU Board of Trustees 49 3 At the login prompt enter phy183f7 note the small letters in phy183f7 Your terminal screen should then look like CAPA a Computer Assisted Personalized Approach Course Name and Number Enter STUDENT NUMBER and CAPA_ID hit ENTER RETURN after each lt lt Correct cursor position STUDENT NUMBER CAPA ID To exit system just hit ENTER RETURN The cursor on your screen must be in the position shown above If it is not your terminal is NOT set as a vt 100 4 Enter your Student Number then the CAPA ID which is at the top of your assignment 5 Follow the instructions II Access via www browser 1 Point your browser to URL http capa2 nscl msu edu class html 2 Choose phy183f7 from the pop up menu 3 Enter your Student Number and CAPA ID which is at the top of your assignment 4 Click on the appropriate button to try your set Note 1 You may repeat the problems you missed Your instructor sets the number of tries If you get an incorrect response there is help available for some of the problems You may login logout as many times as you wish Note 2 Do not open multiple sessions or browsers Be sure to eXit properly each time to terminate a ses sion Note 3 Avoid using the Reload Refresh but ton when using the WWW Cliking t
62. le is defined 6 CAPA FUNCTIONS 36 Variables must be defined before they are used in any other expression Be careful to avoid mixed inte ger and real expressions this is particularly important in functions such as random and pow er Examples of how a variable may be defined LET PI 3 1415926535897 LET two_pi 2 PI LET ri random 1 2 1 LET stringi choose r1i Hello Goodbye Note Quotation marks indicate the beginning and end of strings You must use a backslash to display the quotation marks within a string For example LET string Tll be back will produce the ouput T ll be back Do not use intrinsic function names ie sin pow etc for variable names Once defined the same variable can be used at any subsequent point in the entire problem set and it can even be redefined Therefore variable names that are unique to specific problems help to limit their scope The value of a previously defined variable can be displayed in text by placing the variable name in the DIS command e g DIS r1 The format of the display value can be controlled as well using a colon and a specification For example DIS PI 3f means display the variable PI as a floating point number with three places after the decimal The colon is a delimiter indicating that a format specification follows D1S var 2E will display the variable with two decimal places in scientific notation The very end of the text and d
63. low 5 SPECIFICATION OF CAPA PROBLEM SETS 30 J K K K K aK aK K aK K K aK aK K OOOOO K K K K K FK 2K 2K KK K BEG prob_val 2 IMP Tools Problem By S Wolfe wolfe nscl msu edu No commercial use HIN Summing is the same as Addition EXP Add the two numbers and enter the result LET firstnumber random 1 5 1 secondnumber random 2 10 2 the sum of DIS firstnumber plus DIS secondnumber sum firstnumber secondnumber ANS sum tol 0 01 wgt prob_val tries 10 DIS stdline J K K K K aK aK aK aK K aK aK aK aK aK aK 3K 3K 3K 2K 3K 2K 2K 2K 2K 2K K K K K K 3K 2K 2K KK K The printed output for a specific student appears as 1 2pt Find the sum of 3 plus 8 Each of the lines in this example is terminated with a carriage return end of line character even though it is not visible here The BEG prob_val 2 begins the problem and sets the weight of the problem to 2 points The weight must be an integer from 1 to 9 The IMP Tools Problem function is used to print the problem number and the weight of the problem with a bold font All lines that start with double slashes are comment lines and only appear in the setz qz file For example the comment lines of stars are used to offset problems so that they can be identified easily As in any computer code comments play an important role in documentation and self documenting variable names are helpful The line beginning with HIN contai
64. mind the student EXP how to do the problem and might take several lines 8 The mapping function MAP e The MAP function is used to map and permute one set of variables onto another e For example LET seed random 1 300 1 MAP seed M1 M2 M3 m n 0 Assigns to the variables M1 M2 and M3 the values of the variables m n and o The correspondence ie which of m n or o is assigned to M1 etc is determined by the value of the variable seed which in this example is selected from 1 to 300 e The MAP function is used in all the auxiliary files of the multiple choice templates prepared to facilitate coding of qualitative or conceptual questions 9 Answers ANS e Individual problems are ended by an expression specifying the answer This answer expression consists of the keyword ANS starting from the first character of a line e The answers to problems are previously defined variables The answers are indicated specifically by the ANS command with the parentheses containing the attributes of the answer The attributes of the ANS function are case insensitive The minimum attributes of a basic answer statement are the variable defining the answer the problem weight and the number of tries The possible attributes to the ANS command are a Tolerance Tolerance can be specified as a set numerical value as a percentage of the correct answer after it has been formatted or as a variable The format
65. n of statement block 3 8 Using Logical Functions and other Functions A number of logical functions are provided in CAPA to allow numerical testing for various conditions The logical expression is tested and returns 0 if False and 1 if true These expressions can be used in a number of ways for example in the rank4aux file used in problem 11 on page 51 6 CAPA FUNCTIONS 35 6 CAPA Functions 1 Question source text CAPA assumes that any characters in the setz qz without a special command at the beginning of a line will be displayed as text for the student Those special commands are LET BEG IMP HIN EXP MAP ANS The information on these special lines can be interleaved with text but variables must be defined in the text before they are used For clarity and readability a regular format with definitions followed by text followed by the solution is encouraged 2 Variable Definitions and Expressions LET Variable definitions and expressions begin on a single line with a LET command that is terminated by a single end of line character Such entries will be line wrapped by the editor and may appear to extend past one line on the display The CAPA system does not reserve variable names except for certain functions used in the system They are listed in the Intrinsic Functions Table and must not be used as variable names Definitions are specified in the form LET VariableName expression List of Available E
66. n to a directory specified in PATH then you can run the application from any directory by entering quizzer Example cd CAPA45 Quizzer quizzer The quizzer main menu will appear in the upper left hand corner of your screen You can edit and preview your files through the quizzer application Be certain to quit the quizzer application when you are finished editing map the shortcut keys for quizzer From the Windows NT main menu bar choose Start choose Programs choose Exceed then choose X Config Double click on the Input icon There will be displayed a pull down menu to set the choices for the Alt key 4 You can choose to have either the left or right Alt key function for your shortcut key in quizzer and grader e Running CAPA via X WIN32 NOTE These instructions are for using X WIN32 in connection with a DEC Alpha host running OSF1 Procedure To 1 2 4 5 set up X WIN32 to automatically open upon start up of your PC Install the software following the directions from the producer Once the software has completed its installation a small window appears which contains two shortcut icons Open the path C Winnt Profiles Username Start Menu Programs Startup from My Com puter Drag the shortcuts into the Startup folder When you reboot your machine X WIN32 will execute upon startup From the toolbar choose X Win blue choose Sessions then choose XDMCP broadcast Th
67. ns an optional hint i e it is up to the instructor whether to include such a hint for the students on a particular problem If a hint has been coded into a problem the student can request to view the hint after attempting to answer the question The line beginning with EXP is the explanation The explanation becomes available to the students after data entry to the problem set is closed Explanations and Hints are included at the discretion of the instructor The lines beginning with LET are definitions of the variables needed for this problem firstnumber is declared to be a random integer in the range of 1 to 5 in steps of 1 similarly secondnumber is an integer in the range of 2 to 10 in steps of 2 CAPA displays real and integer variables differently It is preferable not to mix integer and real numbers In functions such as random they must not be mixed Next we have the text of the problem that will be contained in the printed problem set and shown on the computer screen Note that the DIS command around a previously declared variable tells the computer to display its value If the variable is not defined prior to diplaying a window will display an error message SPECIFICATION OF CAPA PROBLEM SETS 31 e The LET sum declares that the variable sum is the sum of the two random numbers This is the answer to the problem and we use an appropriate variable name The name of the answer here sum is up to the author
68. nt select T True F False G Greater than L Less than or E Equal to A The center of mass does not accelerate B T3 is mig Mog C The magnitude of the acceleration of M is the magnitude of the acceleration of m D T is To E Ti D is T3 F Mog is T 20 2pt Asteroids X Y Z have equal mass 4 kg each They orbit around a planet with M 4 x 1024 kg The orbits are in the plane of the paper and are drawn to scale 3 N TE KE and PE represent Total Kinetic and Potential energies Select G Greater than L Less than or E Equal to Tf the first is G and the rest L enter GLLLLLL A The speed of Y at 5 is B The TE of Z is the TE of X C The PE of Y at 3is the PE of Z at 3 D The PE of Y at 6 is the PE of X at 4 E The PE of X at 7is F The KE of Z at 2 is its value at 3 G The TE of Y is the TE of X 21 2pt The three asteroids orbit in the same direction it is at 3 its value at 6 Select G Greater than L Less than or E Equal to If the first is G and the rest E enter GEEEEEE A At 3 Z s angular velocity is that at 4 At 4 Z s angular velocity is that of X J aw Z s angular momentum is that of X The period of X is that of Z es The angular momentum of X at 6 is that at 4 F The angular velocity of X at 6 is that at 7 G The period of Z is that of Y
69. nt to match a problems content and is specified as LET index random 1 4 LET pronoun choose index he she she he LET ppronoun choose index his hers hers his LET person choose index son daughter niece nephew HIN The DIS person was being pulled up before DIS pronoun HIN let DIS ppronoun balloon escape This hint has two lines and two carriage returns The contents of both lines are displayed simulta neously it is not two separate hints Only one HIN is needed if there is only one carriage return at the end of a hint consisting of several lines of text Content of all lines typed before the answer with a HIN at the beginning are displayed as the hint The relative ordering of the hint lines is preserved and the hint is displayed as a separate page on the VT100 screen and below the answer box on the web version Hints can also be viewed after a problem set is closed 7 Explanations EXP Lines of explanations begin with the EXP characters and are displayed on the login terminal only when requested after a problem set is closed Explanations to a given problem are very similar to hints It is sometimes useful to also include a detailed explanation for problems in contrast to the hints Students often review old problem sets at exam time and may not exactly remember how to solve a specific problem Explanations are also optional 6 CAPA FUNCTIONS 38 EXP A good explanation should re
70. of the acceleration of MTwo MSS the magnitude of the acceleration of MOne LET s2b Statement 2 variation b LET s2c Statement 2 variation c LET s2d Statement 2 variation d LET mix2 random 1 1 1 LET a2a 5 LET a2b 26 9 A PROBLEM SET WITH SOURCE CODE FOR SOME QUESTIONS LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET LET IMP a2c 26 a2d 26 s3a TThree is MOnet g MIwot g S3b MOne g MIwot g is TThree s3c Statement 3 variation c s3d Statement 3 variation d mix3 random 1 2 1 a3a 4 a3b 3 a3c 26 a3d 26 s4a TThree is TOne TTwo s4b TOne TTwo is TThree s4c Statement 4 variation c s4d Statement 4 variation d mix4 random 1 2 1 a4a 5 a4b 5 a4c 26 a4d 26 s5a The center of mass does not accelerate s5b The center of mass accelerates s5c Statement 5 variation c s5d Statement 5 variation d mix5 random 1 2 1 aba 2 abb 1 abc 26 abd 26 s6a TOne is MOne g s6b TTwot is MTwo g s6c M0ne g is TOne s6d MTwo g is TTwo mix6 random 1 4 1 a6a 3 a6b 4 a6c 4 a6d 3 MCTools M6T7aux DIS html lt td gt lt tr gt lt table gt ANS M6T7right wgt prob_val tr
71. ol 5 wgt prob_val tries 10 DIS stdline 7 POR OO AR ACK The output on paper would look like see next page SPECIFICATION OF CAPA PROBLEM SETS 32 2 1pt The graph below represents the function Y az Make a careful determination of the value of a 20 10 10 20 L e The computer code picks a random number k and the choose function selects the string variable 35 that will be included in the name of the eps file to be displayed The choose function contains the selection index as its first argument and the choices as the remaining arguments e It is important to check that the number of choices corresponds exactly to the maximum number of the selection index Otherwise an error will occur whenever the index randomly goes outside the range of choices An Out of bounds error message is displayed The answer is also specified with a choose function using the same selection index e The author of the problem must be sure that the data in the first choose function corresponds to the answers in the second choose function 7 Example 3 Scrambling order of N correct out of M choices The traditional multiple choice problem usually has only one correct answer described by a letter or group of letters To prevent guessing and to encourage the students to discuss the concepts presented by such problems we have created problem prototypes where the order and number of cho
72. omputer gets 1 00E02 If the variable prob_val was defined in the BEG prob_val 3 command at the beginning of a problem then the weight of the problem is 3 points b ANS speed 2E tol 35 0 Wgt 2 tries 5 When an answer submitted by a student is within the absolute tolerance of 35 0 the student would get the problem correct For example if 1350 0 is entered and is the correct answer the message reads Correct Computer gets 1 35E03 This absolute tolerance is also based upon the formatted answer The limit of accepted answers are the formatted answer the tolerance c ANS speed 3E tol qty3 Sig 3 plus 1 Wgt prob_val tries 5 Here the tolerance is a pre viously defined quantity qty3 The student s answer must have either 3 or 4 significant figures or else the computer response is Adjust Sig Figs An acceptable answer will produce the response Correct Computer gets 1 347E03 Sig 3 requires 3 significant figures Sig 3 plus 1 minus 1 is equivalent to Sig 2 plus 2 requiring 2 3 or 4 significant figures d ANS speed 3E tol qty3 Sig 3 plus 1 Wgt 4 Pcr on tries 5 Pcr on allows instructor to enter a value from 0 to 4 for that problem which could for example be an essay or derivation or a diagram etc CAPA FUNCTIONS 40 e String answers can be exact comparisons or have the order and or case disregarded a ANS KC1 wgt prob_val tries 5 Only the strings KCl kC1 KcL are correct as default is case insensitive
73. pa2 nscl msu edu gt ls la drwxr xr x 7 root system 2048 Mar 31 16 38 drwxr xr x 9 root system 512 Mar 13 13 47 lrwxrwxrwx 1 root system 32 Mar 27 17 14 allpin gt usr users teacher CAPA45 LinkToBin allpin lrwxrwxrwx 1 root system 39 Mar 27 17 14 grader gt usr users teacher CAPA45 LinkToBin Grader grader lrwxrwxrwx 1 root system 41 Mar 27 17 14 quizzer gt usr users teacher CAPA45 LinkToBin Quizzer quizzer lrwxrwxrwx 1 root system 33 Mar 27 17 14 qzparse gt usr users teacher CAPA45 LinkToBin qzparse 15 Create an account for the class which will be using CAPA Do this by adding the class as a separate user with a different login shell The login name for the class is the same as the class name In the directory usr sbin enter adduser a b c d TR me G Enter login name nsc111f7 Enter a UID Using the default UID is preferable Just enter lt return gt Enter a full name for user Course Name Enter a login group for user cai NOTE The group for the course must be the same as the instructor for the course For all examples we use teacher and cai Enter another group that user should be a member of lt Return gt only if none Enter lt return gt Enter a parent directory for user usr users teacher CAPA45 Enter a login shell for user usr users teacher CAPA45 capalogin Do you wish to edit the auth file entry for this user n New password password NOTE The password will not be ec
74. plays the text from the translated question file as it would be presented to the students during a terminal session The instructor can use this display to determine if the coding is correct and if the presentation on the remote terminal will be adequate If any changes have been made to the setx qz file in the editor quizzer will ask you to save the file Don t save the file at this point unless you are absolutely sure that the file has not been damaged instead select cancel quit quizzer and start again e Preview the example question file in TEX mode Close the preview window by clicking on the Dismiss button at the top of the window Change the Mode of the preview output by clicking on the TEX mode button on the upper part of edit window and then click the Preview button as before Select a particular student this time type the student number A87654321 into the text panel then lt return gt and click OK The preview window will display the contents of the nsci11f7 quiztemp tex file that will be used later by TEX to typeset the problem set for the selected student in this case Jamie Student Note For the NeXT version these files are named sample tex e Specify the date limits database header The database header for set1 qz may already be present from the distribution However you can bring up a window to modify that information by clicking on the DB header button at the top of the main edit window NOTE Yo
75. pted as correct c ANS Sumx tol 4 wgt 1 tries 5 If Sumx is a previously calculated or defined integer then any answer within plus or minus 4 units is accepted as correct d ANS Sumx Tol 4 Wgt 3 tries 5 Sumx is a previously calculated or defined integer and any answer within plus or minus 4 units is correct It is assigned a weight 3 points in calculating the score Note that the default value of Wgt is 1 point e Real answers A tolerance must be specified for real answers It can absolute or relative An absolute tolerance can be a variable An answer formatted to have a given number of significant figures can be required If the answer submitted does not conform students are sent the message Adjust Sig Figs and must reenter their solution They are then told if the answer is correct Answers with real values can be formatted with specifications 1E 3E 2 etc where 1E exponential notation with one decimal place 3E exponential notation with three decimal places and 2f two floating decimals a ANS speed 2E tol 1 2 Wgt prob_val tries 5 When an answer submitted by a student is within the relative tolerance 1 2 of the correct answer the student gets correct Note The relative tolerances are based on the formatted answer If the calculated answer is 100 1 and 2E formatting is used the tolerance is based on the value 1 00E02 For example if 101 2 is entered the message reads Correct C
76. r 1 for this example Now click on the Load Scores button grader will scan the record files and the short list of students in section 1 and their current grades will appear Note for example the grade of student 412345678 For classes with large student enrollments and long problem sets the display of the section grades may take a few seconds It is recommended that you divide large lecture groups into smaller sections Select a student to grade All the students in the selected section are contained in the displayed list Select a student by clicking and highlighting a student s name Click the Grading button A new grading window will appear on the screen The answers to the problem set for that student are displayed along with rows of buttons Note that the Answer only option has been selected There is also an option to view the text of the questions along with the answers You can change the recorded grade for any problem by clicking on the corresponding radio button on the left hand side The buttons refer to whether the answer was remotely entered as correct Y es as incorrect N o or excused E xcused A dash indicates that the problem was never attempted Lower case y or n are written in the setz db file to indicate when a problem was graded by teaching staff using grader Problems whose answers cannot be entered by computer are Hand graded problems Essay questions or derivations are examples As seen later they are identified as such in
77. rent criteria The line range window allows you to search for a specific line and character number within that line Preferences This feature can be used to choose what style of output is displayed whether you wish to have just problems problems and answers or answers only displayed This also determines what is printed on the paper through the print command so be certain to set it to problems only prior to printing the entire classes papers You can also edit the TeXheader and TeXfooter files through the preferences window For most applications of CAPA however you should not need to edit these files Windows This submenu displays all the currently open windows in the quizzer application If ever a smaller window is hidden by a larger one you can shuffle the smaller window to the top by selecting it in this menu x Remap You have the option of remapping either the backspace or the delete key to suit your particular preference e Select Quit from the menu to leave the quizzer program e A MakeSure window will appear You have the option to continue editing or to quit quizzer e The quizzer main menu then disappears 2 Guided Tour of capalogin After the instructor has created the question file set1 qz in this example and the records set1 db file containing the relevant dates and times students can login through the network The students can use equipment or a communication program that emulates a vt100 terminal to enter their
78. se to edit this file and add your hostname Remember to save the host txt file after you have finished editing it e This allows your machine to connect with only the hosts listed in the host txt file To run a telnet session through eXceed 1 From the Windows NT main menu bar choose Start choose Programs choose Exceed choose htelnet From the menu bar choose File then Create Shortcut Drag the Shortcut you have just created to the Desktop 4 eXceed Hummingbird Communications Ltd 5 Windows NT Microsoft Corporation 3 RUNNING CAPA VIA X SERVER SOFTWARE 14 NN D To Double click on the shortcut you have just created to open a telnet session into your host machine The Connect pop up screen appears In the field host enter your host name Example y capa1 nscl msu edu Select OK You will then see your Telnet window with the login prompt displayed Login to your host as you normally would for a telnet session You must then command your host to display to your local machine by entering the command setenv DISPLAY 35 8 33 131 0 0 NOTE Enter the IP address of the machine you are using For this example 35 8 33 131 is used You can if you wish create an alias for this command by editing your cshrc file in your login directory You can now change directory to the application you wish to run and enter the command for running the application If you have linked the applicatio
79. sin x acos x atan x log x log10 x exp x pow x y sqrt x Trigonometric functions x is in radians LET angle 60 0 LET vari sin angle 3 141592654 180 Sine of DIS angle 1f degrees is DIS var1 3f Output Sine of 60 0 degrees is 0 866 Inverse trigonometric functions Returns radians LET PI 3 141592654 LET vari 1 65 LET var2r atan var1 LET var3d atan vari 180 0 PI The angle whose tangent is DIS vari 3f can be expressed as DIS var2r 3E radians or as DIS var3d 3E degrees Output The angle whose tangent is 1 650 can be expressed as 1 026 radians or as 5 878 x 10 degrees Natural logarithm and base 10 logarithm Note that the the variables natlog and tenlog were defined to simplify the coding of this problem by allowing complicated text with subscripts and superscripts to be printed by displaying a variable LET natlog tex log_e log_e LET tenlog tex log_ 10 log_10 LET x 2546 7 LET vari log x LET var2 1og10 x LET ratio vari var2 LET var3 log 10 0 The DIS natlog of DIS x 1f is DIS var1 3E while its DIS tenlog is DIS var2 3E Note that the ratio DIS natlog DIS tenlog DIS ratio 3f which is just DIS matlog 10 ie DIS var3 3E Output The log of 2546 7 is 7 843 while its login is 3 406 Note that the ratio log logio 2 303 which is just log 10 ie 2 303 Exponential power and square root Compute e x and
80. space for e mail addresses for contacting students The period added for students with no middle names has facilitated importing CAPA summaries into some spread sheet programs i e Lotus when preparing final grades for a course e records directory This folder must be present as a sub directory of the class directory quizzer saves the date 2 qzparse information for setx qz in records setx db capalogin saves student interaction for the telnet session for setz in records logx db capasbin saves student interaction for the web ses sion for setz in records weblogz db The summary information from both logx db and weblogz db is written to the setz db The duration of student sessions is saved in the file records duration db As students login a file named active log is created It is used to limit the number of concurrent telnet sessions per student e Functions qzparse is used to generate the tex files needed to prepare problem sets in a batch mode without using quizzer It can create one output file for an entire section or a multiple number of sets for a given student The output file can then be processed by TEX and dvips to produce a postscript file for printing The options of qzparse are displayed by typing qzparse h Examples 2 CAPA SOFTWARE COMPONENTS 10 capai nscl msu edu gt qzparse h USAGE qzparse TIH A alb Sec n n m Stu sn Set nln m Example 1 qzparse Tb sec 2 3 set 2 5 will gener
81. specific CAPA ID is on each assignment has Solve the problems Discussion of concepts and methods with fellow students is encour aged It is strongly recommended that you answer the questions and work the problems before you login to the computer As you will see when you login for some problems a H for Hint shows up as an option on the screen once you have tried a problem I Access via vt100 terminal emulation 1 You should have no difficulty finding a vt100 ter minal emulator to use There are numerous com puters labs on Campus Some of these are listed below with the approximate number of stations Tabs PGs MACs abs POs MACE asm ss no EZ 33 E a smo r is won e w mm e foo ie _ poni fomo mom 3 wi oa soc a Um 0 roc 29 3 inco m 2 Four ways to start a telnet session A On most campus PC s First select the Class Software option from the main menu Choose CAPA Assignments then choose Login to capa2 prompt press the return key You should next see the prompt login Follow the instructions At the password B For most the campus MACs open the Class Software folder and then open the CAPA folder Then open the folder named capa2 You should next see the prompt login C From wherever you can do a telnet enter telnet capa2 nscl msu edu You should next see the prompt login D Out of town access via modem and a loca
82. takes only a few seconds to complete depending on the computer All of the quiztemp files are in the nsc111f7 directory Note that new problem sets may have coding errors in their CAPA grammar in their TEX grammar in their HTML grammar or in all three These are independent languages and so the steps Enscript and TeX mode Preview and browser display in the document preparation are necessary to detect each kind of error e Printing the example problem set through quizzer From the main quizzer menu choose Print The pop up screen will indicate your options Choose a Print current dvi This option will print the most recent dvi file you have generated using the Create dvi menu option The filename you will print by chosing this option is the current version of the quiztemp dvi file listed in your directory b Randomly select one student from section _ This will generate a random assign ment to be printed c Specify the student by Student Number Once the student number is entered into the field be certain to press lt return gt to call the student name from the classl d Print section This will print an entire section s papers e Print whole class This option will print all the papers for the entire class NOTE For the X Windows version once you have entered a command for printing another pop up screen will appear requesting entry of the options to the Ipr command The required options here wil
83. te records for any assignment hard copy turned in by a student Compile the record of logins for a particular student Provide a Synopsis or on line summary of all the students performance on the questions within a set Display and thus provide a check of the open close dates for any problem set Display a summary of student grades and CAPA ID numbers for any problem set e Files grader reads the class1 file and the files in the records directory generated by quizzer and capalogin and or capaweb The reports created by grader are put into the class direc tory the reports for the entire class are labeled ClassSet1 rpt and reports for a section are la beled SeciSeti rpt etc They should be renamed if permanent records are required i e a later ClassSet1 rpt file will overwrite any previous ClassSet1 rpt 2 CAPA SOFTWARE COMPONENTS 12 6 Tools MCTools The Tools directory contains ASCII files of macros developed to simplify the coding in the preparation of assignments and are self documenting The functions that they perform can be coded into the setx qz files directly These macros are provided for your convenience The MCTools directory provides pre assembled templates that simplify the coding of conceptual problems in various formats or where ranking on a numerical criterion is desired 3 RUNNING CAPA VIA X SERVER SOFTWARE 13 3 Running CAPA via X Server software Your current computer system can be used to access the applic
84. terminals The code is run instead of a UNIX shell in order to allow large numbers of students to easily login while controlling their access to the data files capalogin checks if the student is already logged on in this class If the student is already logged in then a warning message is sent see below and the student is allowed in to the system If the student has opened 2 sessions without exiting properly the student is not allowed into the system and is sent a different warning message Files The instructor can send general information to the entire class by typing messages into certain files The login specific files welcome and goodbye and if needed the help second login msg and third login msg can be edited to send information to students reminding them of deadlines or of exam dates telling them to disregard problem xx when a serious error has been made in coding etc Note that the instructor can code hints and explanations for individual problems directly in the setx qz files Files and their functions are listed below 2 CAPA SOFTWARE COMPONENTS 11 welcome msg The message displayed to the student upon login help msg The message displayed when the student selects the menu item Help goodbye msg gt The message displayed after a student selects menu item eXit second login msg The message displayed when a student already is logged on and tries to begin a second session third login msg The message displayed
85. the answer format of the problem as HGR on To assign a grade click on the box that is presented assign the number of points received by the student in the panel that opens and click to enter the grade Save result After changing a student s grade click on the Save button upper part of the grading window to record the result Confirmation of any grade change is required in a separate panel Generate reports Two types of reports can be generated by the grader program a class report and a section report Both types are saved in a text file with an rpt extension in the course sub directory nsc111f7 These files will have a prefix Class or Sec respectively joined with the problem set number To generate reports select Create class summary from the File menu in the main grader menu and follow the instructions Quit Select Quit in the main menu to exit the grader program 4 GUIDED TOUR OF THE CAPA SYSTEM 24 4 Guided Tour of qzparse Open an rlogin or telnet session as teacher and follow the script below The computer used in this example has a prompt capa2 nscl msu edu gt e capa2 nscl msu edu gt cd CAPA45 This changes the directory to teacher CAPA45 e capa2 nscl msu edu gt qzparse T sec 1 2 set 1 qzparse running in TeX mode question only from section 1 to 2 set 1 Enter the ABSOLUTE path of class usr users teacher CAPA45 nsc111f7 Section 1 3 students Student Davis Nancy A12345678 set 1 St
86. the ith item in the argument list Integer i must greater than zero and it s maximum possible value must not exceed the number of arguments following it LET indx 3 LET realvar choose indx 23 0 45 4 67 3 will select 67 3 LET intvar choose indx 23 45 67 will select 67 LET stringvar choose indx No Yes Maybe will select Maybe realvar DIS realvar 2f intvar DIS intvar stringvar DIS stringvar Output realvar 67 30 intvar 67 stringvar Maybe When in TeX mode return the first argument a and return the second argument b in enscript mode ASCII DIS tex This in the tex file This in the ASCII version LET A 33 LET B 66 DIS tex A B Output This in the tex file 33 Equivalent to texar 6 CAPA FUNCTIONS 45 Description sample quizzer code and output to_string x to_string x y capa_id class section set problem name student number open_date due_date answer_date If variable x is an integer to string x returns a string If x is real the format is given by y as follows LET namel to_string 345 LET name2 to_string 34 5 2E LET name3 to_string 34 5 2f LET sentencei This number is namel LET sentence2 This number is name2 LET sentence3 This number is name3 DIS sentencei DIS sentence2 DIS sentence3 Output This number is 345 This number is 3 45E 01 This number is 34 50 The
87. tory here enter teacher CAPA45 nsc111f7 Login Shell teacher CAPA45 capalogin this specification is the one that limits student access vii select Save in the menu a warning message may appear vili select OK check values ix To the prompt Create User Home Directory say No This is very important Students do not get file space x Quit UserManager Return to the file etc shells Edit the file by removing the line teacher CAPA45 capalogin Note This allows students to login but only under the restrictions placed by the capalogin code Otherwise students i e user nsc111f7 could login on your computer and see or modify all the files in teacher that have group read write permission Quit Edit select File Save select File Close Several Username sub directories which students use to login and that hold all of the necessary files can be placed under the teacher account just as was done for nsc111f7 above i e phy232f7 cem152f7 xph232f7 etc logout as root 2 CAPA SOFTWARE COMPONENTS 8 2 CAPA Software Components quizzer qzparse capalogin capasbin capahtml grader and their auxiliary files There are six application codes required for the complete system They are quizzer capalogin capasbin capahtml qzparse and grader The capalogin code is executed automatically for each student session the quizzer and grader applications are tools for the instructor to manage the problem set fil
88. u must preview the set prior to changing the DB Header Three dates must be set a Open date time when the students can begin to enter answers to this problem set b Close date time the time by which students must finish entering answers and properly log out of CAPA i e when all answer recording stops c Answer date time when the answers to the problems will be made available to the students This should be after the Close date time Use the Load button to view the current values for this problem set You receive a warning if the values are not present in the set1 db file Setting the DB Header is necessary for each new problem set before students login Without the proper date information students will not be allowed to enter their answers a The database header may be set as the number of problems change but it must be set after the number of problems in the set is finalized otherwise serious errors in the grade records will occur If you have found it necessary to make major changes in your source file such as changing the problem value or the grading option to Hand Graded HGR on in ANS be certain to reset the DB Header prior to printing the final version for distribution to your students b Once the database header has been set and the problem set distributed to students do not change the number of problems in the set and reset the database header as this will cause the student records to be corrupted each time
89. udent Student Jamie A87654321 Seb Lure greece dee eek a Student Kashy Edwin N 1733360318 Set Li de tol ae bag te suites DONE set 1 DONE section 1 Section 2 3 students Student Tsai Isaac Y A51413121 Set les teins Pees Student Morrissey David J 173336321 set Ack ce ce other Student Thoennessen Mike 173336323 SOC Liste eee a e Oa sims DONE set 1 DONE section 2 ALL DONE The above message shows that the qzparse application has generated the appropriate tex files from the quiz set files The tex files will contain questions for qz set 1 for section 1 and section 2 e capa2 nscl msu edu gt cd nsc111f7 Tex capa2 nscl msu edu gt latex sectioni seti Output written on sectioni seti dvi 3 pages 16304 bytes Transcript written on sectioni seti log The above message shows that the dvi file has been created from the tex file for section 1 e capa2 nscl msu edu gt latex section2 set1 Output written on section2 setl dvi 2 pages 11108 bytes Transcript written on section2 seti log Another dvi file has been created this time for section 2 e capa2 nscl msu edu gt dvips sectioni seti dvi o sectionl seti ps This command generates the ps file which is ready for printing e capa2 nscl msu edu gt dvips section2 seti dvi o section2 set1 ps Another ps file has been created this time for section 2 4 GUIDED TOUR OF THE CAPA SYSTEM 25 e capa2 nscl msu edu gt 1s sectioni seti aux sectioni set
90. unctions variables or anything that has been evaluated and must be inserted in the text when the output is generated CAPA uses other special commands at the beginning of a line For example LET defines a variable IMP imports a file into the qz file HIN defines a hint which is available for viewing by the student after the student has entered an incorrect answer ANS defines the answer to the problem Note the UPPER CASE used for the commands The is used for lines that are comments and should not be evaluated or inserted into the text or displayed to the students The grammar for writing problem sets with some examples is given in the following section 2 ATRX and ASCII in CAPA problems A complete but plain problem set can be written using only ASCII characters In this case the printed version and the version displayed on the VT100 terminal will be exactly the same However we have found that high quality printed problem sets can be readily produced by the CAPA system with TEX Thus an important and sometimes confusing aspect of the setz qz files is the ATEX commands to control the presentation of the problem Greek characters postscript figures subscripts and superscripts must be imbedded in the problem set text but cannot be displayed on the VT100 terminal window during interactive logins Using the tex function it is possible to specify a LTEX version and an ASCII version of a particular string of characters For example AH could
91. usage of the Return key can be used to format the ASCII output Because the quizzer display automatically line wraps the text input it is important to check the ASCII display before distributing a problem set The best method is to log in just as a student would It is convenient to begin the question file setz qz with commands such as IMP HWTop and IMP Tools StdMacros These commands import a header to display the student s name the course name as well as macros for often used commands and instructions The questions with their coded answers and appropriate hints comments and explanations if desired follow END command and a carriage return signify the end of the entire set It is recommended that each type of problem for a specific field of study be classified and kept in individual ASCII files This way an entire problem set can be generated by using commands similar to IMP ProblemLibrary type04 prob3 Note that there are also two auxiliary files with commands for formatting the TEX 2 09 document called TeXheader and Texfooter These are automatically included by quizzer at the top and bottom of the quiztemp tex file before the quiztemp dvi file is created The TeXheader file used at MSU creates a high density two column format for the problem sets This file is contained in the nsciiif7 directory and is shown below documentstyle twocolumn epsf article textheight 25 9cm oddsidemargin 0 42in evensidemarg
92. utton set1 qz is identical to the sample assignment presented on page XXX of this manual Note that set2 qz has the same problems as set1 qz but is assembled using a library format The contents of this file will show up in quizzer s editing window Browse through the contents of this question file Be careful not to make any changes at this time or at least not to save any changes If you make an inadvertent change or if you are not sure of a change then just quit the quizzer application and restart it e Preview the example question file in enscript mode Choose enscript mode from the options at the top of the quizzer edit window Click the Preview button A dialog window will appear to ask you to select a specific student from the class list The choice may be made randomly from a specified section or the student number of a student in a section can be entered Select the random selection option and click on the OK button Note To select a specific student first click the Preview button and then type the appropriate Student Number into the text entry panel followed by a carriage return If the Student number is not in the class list files teacher CAPA45 nsc111f7 class1 an error message is returned 4 GUIDED TOUR OF THE CAPA SYSTEM 18 The prompt window which appears indicating the number of questions has changed is discussed later for now choose Ok A preview window will also appear This window dis
93. val 2 IMP Tools parProblem HIN This problem deals with Newton s second law F ma Think about acceleration and the net force on a body A body can be a set of objects connected by internal forces by E Kashy kashy nscl nscl msu edu No unauthorized commercial use 9 A PROBLEM SET WITH SOURCE CODE FOR SOME QUESTIONS 59 CAPA MCTools M6T7 6 items matched to up to 7 strings defined in the problem statement The strings are sT1 sT2 sT3 sT4 sT5 sT6 sT7 Fill out symbols sTx and then meamings sTrx LET sTi T reference value is 1 could have used Tr LET sT2 F reference value is 2 could have used Fa LET sT3 G reference value is 3 could have used tex gt gt LET sT4 L reference value is 4 could have used tex lt lt LET sT5 E reference value is 5 LET sT6 H reference value is 6 LET sT7 B reference value is 7 Fill out meanings LET sTri True If only 2 symbols are needed use this one and LET sTr2 False this one Note the dash and comma and space here LET sTr3 Greater than Leaving blank for the sTx and sTrx strings LET sTr4 Less than will autmatically format the instructions LET sTrb Equal to for the students LET sTr6 Heavy LET sTr7 Blue last filled out one has a period LET mOne web mi m_1 m lt sub gt 1 lt sub gt LET MTwo web M2 M_
94. xpressions Integer An integer Real number A real number It could be of the form 123 4 1 234E 2 1 234E 2 1 234E 02 1 234e 02 string A string It is specified in the form A block of text Variable Name A variable previously defined expression Precedence evaluate expression first expression Negative of expression function expression Call a function with arguments see below expression expression Multiply expressions expression expression Divide expresssions expression expression Add expressions concatenate strings expression expression Subtract expressions expression expression Logical expressions equal Returns 0 if false 1 if true expression expression Logical expressions different Returns 0 or 1 expression gt expression Logical greater than or equal Returns 0 or 1 expression lt expression Logical less than or equal Returns 0 or 1 expression gt expression Logical greater than Returns 0 or 1 expression lt expression Logical smaller than Returns 0 or 1 The variable names must begin with a letter but may contain letters numbers and underline char acters Variable names and function names are case sensitive and there is no limit on the length of a variable name There are three types of variables integer real and string The type is not explicitly specified but rather is assigned by context at the time the variab
95. y be selected dynamically from a set for example LET integer random 1 10 1 LET filename File integer IMP filename 6 CAPA FUNCTIONS 37 which will import a randomly selected fileX from Filel File2 Filel0 Note that adding an integer to a string results in a concatenated newstring This can be used to provide even greater variability among sets for students since different problems on a given topic can selected This feature may be especially useful to produce standardized tests With a large enough problem base students can be given a randomly selected set to prepare for the test 5 Comment Lines Comments are character strings on lines that start with a double slash and contain no carriage returns Comments can be written on the same line as other statements For example LET number random 1 4 1 chooses a random number The comments are only displayed by the quizzer module and are for the benefit of the people writing and reviewing the actual problem code Instructors are strongly encouraged to include comment lines in order to describe the structure of the problems for future use 6 Hints HIN Hints are optional There can be one hint per problem When coded into a specific problem the hint is made available to the students after an answer correct or incorrect has been proffered The text for hints contain character strings no expressions and can display string variables defined before the hi
96. zer and students have logged in several database files will be automatically created The last files in this directory will eventually look like rw r r 1 teacher cai 166 Jan 8 15 36 active log SEWSLESTES 1 teacher cai 355 Jan 8 15 36 duration db rw r r 1 teacher cai 294 Jan 8 15 36 logi db Iwrr r 1 teacher cai 454 Jan 8 15 36 seti db Important Check that the permissions and user ownership of the files are the same as those in the examples above If the group shown is not cai then change the working directory to teacher CAPA45 by INSTALLATION OF CAPA 5 typing cd usr users teacher CAPA45 and then chgrp R cai to change the group of all the files Similarly if the owner shown is not teacher then change the working directory to teacher CAPA45 by typing cd usr users teacher CAPA45 and then chown R teacher to change the owner of all the files in the CAPA45 directory and subdirectories 23 Note If you have created user IDs for classes in addition to nsc111f7 they will appear as subdirectories in teacher CAPA45 The ownership and group should be teacher and cai as well The same prototype files and folders as in teacher CAPA45 nsc111f7 must be placed in each sub directory copy and edit them as needed 24 Some notes a The TEX and dvi programs should be properly installed on the host machine in order for quizzer to format the problem sets See your system administrator for help in installing these programs b

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