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[WWcvs] webwork2: Adding final problems for modelCourse
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From: Mike G. v. a. <we...@ma...> - 2005-07-28 19:48:43
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Log Message:
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Adding final problems for modelCourse
Added Files:
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webwork2/courses/modelCourse/templates/set0:
paperHeaderFile0.pg
prob1.pg
prob1a.pg
prob1b.pg
prob1c.pg
prob2.pg
prob3.pg
prob5.pg
screenHeaderFile0.pg
webwork2/courses/modelCourse/templates/set0/prob4:
1-55141.gif
1-65474.gif
1-75352.gif
1-79226.gif
2-11287.gif
2-63428.gif
2-68382.gif
2-96187.gif
3-18387.gif
3-44144.gif
3-55459.gif
3-69221.gif
prob4.pg
webwork2/courses/modelCourse/templates/setDemo:
calc.html
Revision Data
-------------
--- /dev/null
+++ courses/modelCourse/templates/set0/prob1b.pg
@@ -0,0 +1,106 @@
+##DESCRIPTION
+## help for leaning precedence
+##ENDDESCRIPTION
+
+##KEYWORDS('functions')
+
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+"PG.pl",
+"PGbasicmacros.pl",
+"PGchoicemacros.pl",
+"PGanswermacros.pl",
+"PGauxiliaryFunctions.pl"
+);
+
+TEXT(beginproblem());
+$showPartialCorrectAnswers = 1;
+
+
+BEGIN_TEXT
+This problem will help you learn the rules of precedence, i.e. the order in which
+mathematical operations are performed. You can use parentheses (and also square brackets
+[ ] and/or curly braces $LB $RB) if you want to change the normal way operations work.$PAR
+
+So first let us review the normal way operations are performed.$PAR
+
+The rules are simple. Exponentiation is always done before multiplication
+and division and multiplication and division are always done before addition
+and subtraction. (Mathematically we say exponentiation takes precedence over
+multiplication and division, etc.). For example what is 1+2*3? $BR
+\{ ans_rule(25) \}
+END_TEXT
+
+$ans = 7;
+ANS(std_num_cmp($ans));
+
+
+BEGIN_TEXT
+$BR and what is \( 2\cdot 3^2 \)? $BR
+\{ ans_rule(25) \}
+END_TEXT
+
+$ans = 2*3**2;
+ANS(std_num_cmp($ans));
+
+BEGIN_TEXT
+
+$BR
+Now sometime you want to force things to be done in a different way. This is
+what parentheses are used for. The rule is: whatever is enclosed in
+parentheses is done before anything else (and things in the inner most
+parentheses are done first).
+
+For example how do you enter \[ \frac {1+\sin(3)}{2+\tan(4)}\quad ? \] Hint: this is a good place to use
+[ ]'s and also to use the ${LQ}Preview${RQ} button. $BR
+\{ ans_rule(25) \}
+END_TEXT
+
+$ans = (1+sin(3))/(2+tan(4)) ;
+ANS(std_num_cmp($ans));
+
+BEGIN_TEXT
+$BR
+Here are some more examples:
+
+(1+3)9 =36, (2*3)**2 = 6**2 = 36, 3**(2*2) = 3**4 = 81, (2+3)**2 = 5**2 = 25, 3**(2+2) = 3**4 = 81
+
+$BR
+(Here we have used ** to denote exponentiation and you can also use this instead of a ${LQ}caret${RQ} if you want). Try entering some of these and use the "Preview" button to see the result. The "correct"
+result for this answer blank is 36, but by using the ${LQ}Preview${RQ} button, you can enter whatever
+you want and use WeBWorK as a hand calculator.$BR
+\{ ans_rule(25) \}
+
+END_TEXT
+
+$ans =36;
+
+ANS(std_num_cmp($ans));
+
+BEGIN_TEXT
+$BR
+
+There is one other thing to be careful of. Multiplication and division have the
+same precedence and there are no universal rules as to which should be done first.
+For example, what does 2/3*4 mean? (Note that / is the "division symbol", which
+is usually written as a line with two dots, but unfortunately, this "line with
+two dots" symbol is not on computer keyboards. Don't think of / as the horizontal
+line in a fraction. Ask yourself what 1/2/2 should mean.) WeBWorK and most other
+computers read things from left to right, i.e. 2/3*4 means (2/3)*4 or 8/3, IT DOES
+NOT MEAN 2/12. Some computers may do operations from right to left. If you
+want 2/(3*4) = 2/12, you have to use parentheses. The same thing happens with
+addition and subtraction. 1-3+2 = 0 but 1-(3+2) = -4. This is one case where using
+parentheses even if they are not needed might be a good idea, e.g. write (2/3)*4
+even though you could write 2/3*4. This is also a case where previewing your answer
+can save you a lot a grief since you will be able to see what you entered.
+
+$BR
+Enter 2/3*4 and use the Preview button to see what you get.$BR
+\{ ans_rule(25) \}
+END_TEXT
+
+$ans = 8/3;
+ANS(std_num_cmp($ans));
+
+ENDDOCUMENT(); # This should be the last executable line in the problem.
--- /dev/null
+++ courses/modelCourse/templates/set0/prob1.pg
@@ -0,0 +1,114 @@
+##DESCRIPTION
+## A very simple first problem
+##ENDDESCRIPTION
+
+# this is a comment. i just added it. nifty!
+
+##KEYWORDS('algebra')
+
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+"PG.pl",
+"PGbasicmacros.pl",
+"PGchoicemacros.pl",
+"PGanswermacros.pl",
+"PGauxiliaryFunctions.pl"
+);
+
+TEXT(beginproblem());
+$showPartialCorrectAnswers = 1;
+
+$a = random(-10,-1,1);
+$b = random(1,11,1);
+$c = random(1,11,1);
+$d = random(1,11,1);
+
+BEGIN_TEXT
+This problem demonstrates how you enter numerical answers into WeBWorK. $PAR
+Evaluate the expression \(3($a )($b -$c -2($d ))\):
+ \{ ans_rule(10) \}
+$BR
+
+END_TEXT
+
+
+$ans = 3*($a)*($b-$c-2*($d));
+
+ANS(strict_num_cmp($ans));
+
+BEGIN_TEXT
+In the case above you need to enter a number, since we're testing whether you can multiply
+out these numbers. (You can use a calculator if you want.)
+$PAR
+For most problems, you will be able to get WeBWorK to
+do some of the work for you. For example
+$BR
+Calculate ($a) * ($b): \{ ans_rule()\}
+$BR
+
+END_TEXT
+
+
+$ans = $a*$b;
+
+ANS(std_num_cmp($ans));
+
+BEGIN_TEXT
+
+The asterisk is what most computers use to denote multiplication and you can use this with WeBWorK.
+But WeBWorK will also allow you to use a space to denote multiplication.
+You can either \($a * $b\) or \{$a*$b\} or even \($a \ $b\). All will work. Try them.
+$PAR
+Now try calculating the sine of 45 degrees ( that's sine of pi over 4 in radians
+and numerically sin(pi/4) equals \{1/sqrt(2)\} or, more precisely, \(1/\sqrt{2} \) ).
+You can enter this as sin(pi/4) , as
+sin(3.1415926/4), as 1/sqrt(2), as 2**(-.5), etc. This is because WeBWorK knows about
+functions like sin and sqrt (square root). (Note: exponents
+can be indicated by either a "caret" or **). Try it.$BR \( \sin(\pi/4) = \) \{ ans_rule(20) \}$PAR
+
+ Here's the
+\{ htmlLink(qq!http://webwork.math.rochester.edu/webwork_system_html/docs/docs/pglanguage/availablefunctions.html!,"list of the functions") \}
+ which WeBWorK understands. WeBWorK ALWAYS uses radian mode for trig functions.
+ $PAR
+
+END_TEXT
+
+ANS( std_num_cmp(sin(3.1415926/4)) );
+
+BEGIN_TEXT
+
+You can also use juxtaposition to denote multiplication. E.g. enter \( 2\sin(3\pi/2) \).
+You can enter this as 2*sin(3*pi/2) or more simply as 2sin(3pi/2). Try it: $BR
+\{ ans_rule(20) \}$PAR
+
+END_TEXT
+
+$pi = 4*atan(1);
+ANS( std_num_cmp(2*sin(3*$pi/2)) );
+
+BEGIN_TEXT
+
+Sometimes you need to use ( )'s to make your meaning clear. E.g. 1/2+3 is 3.5, but 1/(2+3) is .2 Why?
+Try entering both and use the ${LQ}Preview${RQ} button below to see the difference. In addition to
+( )'s, you can also use [ ]'s and $LB ${RB}'s. $BR
+\{ ans_rule(20) \}$PAR
+
+
+END_TEXT
+
+ANS( std_num_cmp(.2));
+
+BEGIN_TEXT
+
+You can always try to enter answers and let WeBWorK do the calculating.
+WeBWorK will tell you if the problem requires a strict numerical answer.
+The way we use WeBWorK in this class there is no penalty for getting an answer wrong. What counts
+is that you get the answer right eventually (before the due date). For complicated answers,
+you should use the ${LQ}Preview${RQ} button to check for syntax errors and also to check that the answer
+you enter is really what you think it is.
+
+
+END_TEXT
+
+ENDDOCUMENT(); # This should be the last executable line in the problem.
--- /dev/null
+++ courses/modelCourse/templates/set0/prob3.pg
@@ -0,0 +1,78 @@
+##DESCRIPTION
+## sample matching problem
+##ENDDESCRIPTION
+
+##KEYWORDS('sample')
+
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+"PG.pl",
+"PGbasicmacros.pl",
+"PGchoicemacros.pl",
+"PGanswermacros.pl",
+"PGauxiliaryFunctions.pl"
+);
+
+TEXT(beginproblem());
+$showPartialCorrectAnswers = 0;
+
+
+$a = random(-10,10,1);
+$b = random(1,3,1);
+$c = abs($a);
+#$indextag = abs(($a < 0) -2)
+if ($a <0) {$sgn = "+";} else {$sgn = "-";}
+#$sgn = choose(indextag,"+","-")
+## If e.g. $a = -3, write |x+3| instead of |x--3|
+## Write an ifThenElse macro
+$questStr1 = EV2(" \(x\) is less than $a" );
+$ansStr1 = EV2(" \(x \lt $a\)");
+$questStr2 =EV2( " \(x\) is any real number" );
+$ansStr2 = EV2(" \(-\infty \lt x \lt \infty\)");
+$questStr3 = EV2(" \(x\) is greater than $a" );
+$ansStr3 = EV2(" \($a \lt x\)");
+$questStr4 = EV2(" \(x\) is less than or equal to $a" );
+$ansStr4 = EV2(" \(x \leq $a\)");
+$questStr5 = EV2(" \(x\) is greater than or equal to $a");
+$ansStr5 = EV2(" \(x \geq $a\)");
+$questStr6 = EV2(" The distance from \(x\) to $a is less than or equal to $b");
+$ansStr6 = EV2(" \(|x $sgn $c| \leq $b\)");
+$questStr7 = EV2(" The distance from \(x\) to $a is more than $b");
+$ansStr7 = EV2(" \(|x $sgn $c| \gt $b\)");
+
+@questions =( $questStr1,$questStr2,$questStr3,$questStr4,$questStr5,$questStr6,$questStr7);
+@answers =( $ansStr1,$ansStr2,$ansStr3,$ansStr4,$ansStr5,$ansStr6,$ansStr7);
+
+# Now randomize the questions:
+@slice = &NchooseK(7,5);
+@shuffle = &shuffle(scalar(@slice));
+################################################################################
+
+TEXT(EV2(<<EOT));
+This problem demonstrates a WeBWorK Matching question. $PAR
+Match the statements defined below with the letters labeling their
+equivalent expressions. $BR
+You must get all of the answers correct to receive credit.
+$BR
+EOT
+TEXT(
+&match_questions_list(@questions[@slice]),
+&OL(@answers[@slice[@shuffle]])
+);
+ANS( str_cmp([ @ALPHABET[&invert(@shuffle)] ] ) );
+ ##the correct answers are obtained by applying
+ ##the inverse (adjoint) permutation to the captions.
+
+TEXT(<<EOT);
+For this problem WeBWorK only tells you that all your answers are correct or that at least one is wrong.
+This makes the problem harder and is usually used only for T/F and matching questions.
+The idea is to encourage you to think rather than to just try guessing.
+$PAR
+If you are having trouble reading the mathematics on the screen, this means that you are using "text" mode.
+If you are using Netscape or MSIE then you can get an easier to read version of the equations by returning to the
+problem list page (use the button at the top of this page) and choosing "formatted-text" or "typeset" instead
+of "text". Sometimes there is a 15-20 second delay in viewing a problem in "typeset" mode the first time.
+EOT
+
+ENDDOCUMENT(); # This should be the last executable line in the problem.
\ No newline at end of file
--- /dev/null
+++ courses/modelCourse/templates/set0/screenHeaderFile0.pg
@@ -0,0 +1,46 @@
+##Screen set header for set 0, Fall 1998
+
+&DOCUMENT;
+
+loadMacros(
+"PG.pl",
+"PGbasicmacros.pl",
+"PGchoicemacros.pl",
+"PGanswermacros.pl"
+);
+
+
+
+BEGIN_TEXT;
+WeBWorK assignment number $setNumber is due $formatedDueDate.
+
+$PAR
+This first problem set (set 0) is designed to acquaint you with using WeBWorK.
+YOUR SCORE ON THIS SET WILL NOT BE COUNTED TOWARD YOUR FINAL GRADE.
+In addition to doing the screen problems, practice getting a hard copy print out of the
+problem set. You probably won't need it for this problem set, but you may in the future.
+If you need software installed on your own computer look
+\{ htmlLink("/index.html#software","here")\}.
+$PAR
+The primary purpose of WeBWorK is to let you know if you are getting the right answer or to alert
+you if you get the wrong answer. Usually you can attempt a problem as many times as you want before
+the due date. However, if you are having trouble figuring out your error, you should
+consult the book, or ask a fellow student, one of the TA's or
+your professor for help. Don't spend a lot of time guessing -- it's not very efficient or effective.
+$PAR
+
+You can use the Feedback button on each problem
+page to send e-mail to the professors.
+$PAR
+Give 4 or 5 significant digits for (floating point) numerical answers.
+For most problems when entering numerical answers, you can if you wish
+enter elementary expressions such as 2^3 instead of 8, sin(3pi/2) instead
+of -1, e^(ln(2)) instead of 2,
+(2+tan(3))*(4-sin(5))^6-7/8 instead of 27620.3413, etc.
+
+ Here's the
+\{ htmlLink(qq!http://webwork.math.rochester.edu/webwork_system_html/docs/docs/pglanguage/availablefunctions.html!,"list of the functions") \}
+ which WeBWorK understands.
+END_TEXT
+
+&ENDDOCUMENT;
--- /dev/null
+++ courses/modelCourse/templates/set0/prob5.pg
@@ -0,0 +1,44 @@
+##DESCRIPTION
+## practice problem
+##ENDDESCRIPTION
+
+##KEYWORDS('sample')
+
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+"PG.pl",
+"PGbasicmacros.pl",
+"PGchoicemacros.pl",
+"PGanswermacros.pl",
+"PGauxiliaryFunctions.pl"
+);
+
+TEXT(beginproblem());
+$showPartialCorrectAnswers = 0;
+
+
+$a = random(100,200,1);
+$b = random(250,350,1);
+$c = random(-31,-3,1);
+TEXT(EV2(<<EOT));
+This problem demonstrates a WeBWorK question that requires you to enter a number or a fraction. $PAR
+Evaluate the expression \(\frac{|$a-$b|}{|$c|}\). Give your answer in decimal notation
+correct to three decimal places or give your answer as a fraction.
+$BR $BR \{ANS_RULE(1,10) \}
+$BR
+EOT
+$ans = abs($a-$b)/abs($c);
+ANS(arith_num_cmp($ans));
+TEXT(<<EOT);
+$PAR
+Now that you have finished you can use the "Prob. List" button at the top of the page
+to return to the problem list page. You'll see that the problems you have done have been
+labeled as correct or incorrect, so you can go back and do problems you skipped or couldn't
+get right the first time. Once you have done a problem correctly it is ALWAYS listed as correct
+even if you go back and do it incorrectly later. This means you can use WeBWorK to review
+course material without any danger of changing your grade.
+
+EOT
+
+ENDDOCUMENT(); # This should be the last executable line in the problem.
--- /dev/null
+++ courses/modelCourse/templates/set0/prob1a.pg
@@ -0,0 +1,58 @@
+##DESCRIPTION
+## sample of entering functions as answers
+##ENDDESCRIPTION
+
+##KEYWORDS('functions')
+
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+ "PGbasicmacros.pl",
+ "PGchoicemacros.pl",
+ "PGanswermacros.pl",
+ "PGauxiliaryFunctions.pl"
+);
+
+TEXT(beginproblem());
+$showPartialCorrectAnswers = 1;
+
+
+BEGIN_TEXT
+This problem demonstrates how you enter function answers into WeBWorK. $PAR
+First enter the function \(\sin\; x\). When entering the function, you should enter
+sin(x), but WeBWorK will also accept sin x or even sinx. If you remember your trig
+identities, sin(x) = -cos(x+pi/2) and WeBWorK will accept this or any other function
+equal to sin(x),
+e.g. sin(x) +sin(x)**2+cos(x)**2-1
+$BR\{ans_rule(35) \}
+
+END_TEXT
+
+$ans = "sin(x)";
+ANS(function_cmp($ans));
+
+BEGIN_TEXT
+$PAR
+We said you should enter sin(x) even though WeBWorK will also accept sin x or even sinx because you
+are less likely to make a mistake. Try entering sin(2x) without the parentheses and you may be surprised
+at what you get. Use the Preview button to see what you get. WeBWorK will evaluate functions (such
+as sin) before doing anything else, so sin 2x means first apply sin which gives sin(2) and then
+mutiple by x. Try it.
+$BR\{ans_rule(35) \}
+
+END_TEXT
+
+
+$ans = "sin(2*x)";
+ANS(function_cmp($ans));
+
+TEXT(EV2(<<EOT));
+$PAR Now enter the function \(2\cos t\). Note this is a function of \( t\) and not \( x\). Try entering
+2cos x and see what happens.
+$BR \{ans_rule(35) \}
+EOT
+
+$ans = "2*cos(t)";
+ANS(function_cmp($ans,'t'));
+
+ENDDOCUMENT(); # This should be the last executable line the problem.
--- /dev/null
+++ courses/modelCourse/templates/set0/prob1c.pg
@@ -0,0 +1,15 @@
+
+
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+ "PG.pl",
+ "PGbasicmacros.pl",
+ "PGchoicemacros.pl",
+ "PGanswermacros.pl",
+ "PGauxiliaryFunctions.pl"
+);
+
+TEXT("Hello world");
+
+ENDDOCUMENT(); # This should be the last executable line in the problem.
--- /dev/null
+++ courses/modelCourse/templates/set0/paperHeaderFile0.pg
@@ -0,0 +1,29 @@
+##Problem set header for set 0, Summer 2001
+
+&DOCUMENT;
+
+loadMacros(
+"PG.pl",
+"PGbasicmacros.pl",
+"PGchoicemacros.pl",
+"PGanswermacros.pl"
+);
+
+$dateTime = $formatedDueDate;
+
+TEXT(EV2(<<EOT));
+$BEGIN_ONE_COLUMN
+\noindent {\large \bf $studentName}
+\hfill
+\noindent {\large \bf MATH Summer 2001}
+\par
+\noindent{\large \bf Homework Set $setNumber due $dateTime}\par
+
+\noindent This first set (set 0) is designed to acquaint you with using WeBWorK.
+{\bf Your score on this set will not be counted toward your final grade}
+\par
+\noindent You may need to give 4 or 5 significant digits for some (floating point) numerical answers in order to have them accepted by the computer.
+$END_ONE_COLUMN
+EOT
+
+&ENDDOCUMENT;
--- /dev/null
+++ courses/modelCourse/templates/set0/prob2.pg
@@ -0,0 +1,72 @@
+##DESCRIPTION
+## sample true-false question
+##ENDDESCRIPTION
+
+##KEYWORDS('true-false')
+
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+"PG.pl",
+"PGbasicmacros.pl",
+"PGchoicemacros.pl",
+"PGanswermacros.pl",
+"PGauxiliaryFunctions.pl"
+);
+
+TEXT(beginproblem());
+$showPartialCorrectAnswers = 1;
+
+TEXT(EV2(<<EOT));
+This problem demonstrates a WeBWorK True/False question. $PAR
+Enter a T or an F in each answer space below
+to indicate whether the corresponding statement is true or
+false.$BR
+You must get all of the answers correct to receive credit.
+$BR
+EOT
+
+## First we set up our variables.
+$a = random(1,5,1);
+$b = random(6,10,1);
+$c = random(-10,-1,1);
+$d = random(-10,-1,1);
+$e = random(1,10,1);
+
+$questStr1 = EV2(" \(-$a \lt -$b\)");
+$ansStr1 = "F";
+$questStr2 = EV2(" \($c \leq $c\)");
+$ansStr2 = "T";
+$questStr3 = EV2(" \($d \lt $d\)");
+$ansStr3 = "F";
+$questStr4 = EV2(" \(\pi \geq 3.1416\)");
+$ansStr4 = "F";
+$questStr5 = EV2(" \($e-1 \leq $e\)");
+$ansStr5 = "T";
+
+@questions =( $questStr1,$questStr2,$questStr3,$questStr4,$questStr5);
+@answers =( $ansStr1,$ansStr2,$ansStr3,$ansStr4,$ansStr5);
+
+## Now choose randomly 4 questions out of the 5 question strings above.
+
+@slice = NchooseK(scalar(@questions),4);
+
+## Next we output the 4 chosen questions. #match_
+TEXT(
+&match_questions_list(@questions[@slice])
+);
+
+ANS(str_cmp([ @answers[@slice] ] ));
+TEXT(<<EOT);
+$PAR Notice that if one of your answers is wrong then, in this problem, WeBWorK will tell you which
+parts are wrong and which parts are right. This is the behavior for most problems, but for true/false
+or multiple choice questions
+WeBWorK will usually only tell you whether or not all the answers are correct.
+It won't tell you which ones are wrong. The idea is to encourage you to think rather than to just try guessing.
+$PAR
+In every case all of the
+answers must be correct before you get credit for the problem.
+
+
+EOT
+ENDDOCUMENT(); # This should be the last executable line in the problem.
\ No newline at end of file
--- /dev/null
+++ courses/modelCourse/templates/set0/prob4/prob4.pg
@@ -0,0 +1,99 @@
+##DESCRIPTION
+## Goal: Identify that a line represents an increasing, decreasing or constant function
+## or is not the graph of a function (when the line is vertical).
+## Contains an introduction explaining the importance of linear (affine) functions.
+##ENDDESCRIPTION
+
+##KEYWORDS('graphs')
+
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+"PG.pl",
+"PGbasicmacros.pl",
+"PGchoicemacros.pl",
+"PGanswermacros.pl",
+"PGauxiliaryFunctions.pl"
+);
+
+TEXT(beginproblem());
+$showPartialCorrectAnswers = 0;
+
+
+$pictSet = random(1,3,1); #there are three sets of graphs
+
+$pictNum = random(1,4,1); #each set has 4 graphs the numbers are below
+
+@pictID = (
+"1-55141.gif",
+"1-79226.gif",
+"1-75352.gif",
+"1-65474.gif",
+"2-96187.gif",
+"2-11287.gif",
+"2-68382.gif",
+"2-63428.gif",
+"3-44144.gif",
+"3-69221.gif",
+"3-18387.gif",
+"3-55459.gif"
+);
+
+sub pictIndex{ # this gives offsets into @pictID -- I was too laxy to do multidimensional arrays
+ my ($i,$j)=@_;
+ return(($i-1)*4+$j-1 )
+ }
+
+@question = ();
+@answer =();
+
+TEXT(
+
+ qq! This problem demonstrates a WeBWorK problem involving graphics. $PAR
+ The simplest functions are the linear (or affine) functions ---
+ the functions whose graphs are
+ a straight line. They are important because many functions (the so-called
+ differentiable functions) ${LQ}locally$RQ look like straight lines.
+ (${LQ}locally$RQ means that
+ if we zoom in and look at the function at very powerful magnification
+ it will look like a straight line.) $PAR
+ !,
+ "Enter the letter of the graph of the function which corresponds to
+ each statement. $BR"
+ );
+
+qa(~~@question,~~@answer,
+"The graph of the line is increasing",
+@pictID[&pictIndex($pictSet,1)],
+"The graph of the line is decreasing",
+@pictID[&pictIndex($pictSet,2)],
+"The graph of the line is constant",
+@pictID[&pictIndex($pictSet,3)],
+"The graph of the line is not the graph of a function",
+@pictID[&pictIndex($pictSet,4)],
+);
+
+@slice = 0..3; # select an ordered subset of the questions and answers
+@shuffle = &shuffle(scalar(@slice)); # create a permutation of the right length
+@images = @answer[@slice[@shuffle]]; # create a permuted list of the answers
+@captions =@ALPHABET[0..3]; # the caption letters are always in order
+
+TEXT(
+&match_questions_list(@question[@slice]),
+&imageRow(~~@images,~~@captions)
+);
+
+ANS(std_str_cmp_list( @ALPHABET[&invert(@shuffle ) ] ) );
+
+TEXT(EV2(<<EOT));
+This is another problem where you aren't told if some of your answers are right. (With
+matching questions and true false questions, this is the standard behavior -- otherwise
+it is too easy to guess your way to the answer without learning anything.)
+$PAR
+If you are having a hard time seeing the picture clearly, click on the picture. It will
+expand to a larger picture on its own page so that you can inspect it more closely.
+$PAR
+Some problems display a link to a web page where you can get additional information
+or a hint:\{ htmlLink(alias("testing.html"),"Hint")\}
+EOT
+ENDDOCUMENT(); # This should be the last executable line in the problem.
--- /dev/null
+++ courses/modelCourse/templates/setDemo/calc.html
@@ -0,0 +1,57 @@
+<HTML>
+<HEAD>
+<TITLE>The JavaScript Source: Calculators: Basic</TITLE>
+<META HTTP-EQUIV="The JavaScript Source" CONTENT="no-cache">
+<META NAME="description" CONTENT="This is a very simple calculator, all done with javascript. Just click the numbers and the operators and use the "=" button to calculate! This is a neat example of the LIMITLESS (!) powers of JavaScript.">
+</HEAD>
+
+<BODY BGCOLOR=#ffffff vlink=#0000ff>
+
+<P>
+
+
+I took this calculator straight from the web at <A HREF="http://javascriptsource.com">javascriptsource.com</A>
+<P>
+
+This is a very simple calculator,
+all done with javascript.
+Just click the numbers and
+the operators and use the "=" button to calculate!
+
+<CENTER>
+<FORM NAME="Calc">
+<TABLE BORDER=4>
+<TR>
+<TD>
+<INPUT TYPE="text" NAME="Input" Size="16">
+<br>
+</TD>
+</TR>
+<TR>
+<TD>
+<INPUT TYPE="button" NAME="one" VALUE=" 1 " OnClick="Calc.Input.value += '1'">
+<INPUT TYPE="button" NAME="two" VALUE=" 2 " OnCLick="Calc.Input.value += '2'">
+<INPUT TYPE="button" NAME="three" VALUE=" 3 " OnClick="Calc.Input.value += '3'">
+<INPUT TYPE="button" NAME="plus" VALUE=" + " OnClick="Calc.Input.value += ' + '">
+<br>
+<INPUT TYPE="button" NAME="four" VALUE=" 4 " OnClick="Calc.Input.value += '4'">
+<INPUT TYPE="button" NAME="five" VALUE=" 5 " OnCLick="Calc.Input.value += '5'">
+<INPUT TYPE="button" NAME="six" VALUE=" 6 " OnClick="Calc.Input.value += '6'">
+<INPUT TYPE="button" NAME="minus" VALUE=" - " OnClick="Calc.Input.value += ' - '">
+<br>
+<INPUT TYPE="button" NAME="seven" VALUE=" 7 " OnClick="Calc.Input.value += '7'">
+<INPUT TYPE="button" NAME="eight" VALUE=" 8 " OnCLick="Calc.Input.value += '8'">
+<INPUT TYPE="button" NAME="nine" VALUE=" 9 " OnClick="Calc.Input.value += '9'">
+<INPUT TYPE="button" NAME="times" VALUE=" x " OnClick="Calc.Input.value += ' * '">
+<br>
+<INPUT TYPE="button" NAME="clear" VALUE=" c " OnClick="Calc.Input.value = ''">
+<INPUT TYPE="button" NAME="zero" VALUE=" 0 " OnClick="Calc.Input.value += '0'">
+<INPUT TYPE="button" NAME="DoIt" VALUE=" = " OnClick="Calc.Input.value = eval(Calc.Input.value)">
+<INPUT TYPE="button" NAME="div" VALUE=" / " OnClick="Calc.Input.value += ' / '">
+<br>
+</TD>
+</TR>
+</TABLE>
+</FORM>
+</CENTER>
+</body></html>
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