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[WWcvs] webwork2: Adding the Union setOrientation to the modle course
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From: Arnie P. v. a. <we...@ma...> - 2008-06-26 18:51:10
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Log Message:
-----------
Adding the Union setOrientation to the modle course
Added Files:
-----------
webwork2/courses.dist/modelCourse/templates:
setOrientation.def
webwork2/courses.dist/modelCourse/templates/setOrientation:
course_info.txt
login_info.txt
options_info.txt
prob01.pg
prob02.pg
prob03.pg
prob04.pg
prob06.pg
prob07.pg
prob08.pg
prob09.pg
prob10.pg
prob11.pg
prob12.pg
prob13.pg
prob15.pg
setHeader.pg
Revision Data
-------------
--- /dev/null
+++ courses.dist/modelCourse/templates/setOrientation/prob08.pg
@@ -0,0 +1,159 @@
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+ "PGstandard.pl",
+ "MathObjects.pl",
+ "PGunion.pl",
+ "parserOrientation.pl",
+ "PGcourse.pl",
+);
+
+
+Context("Numeric")->variables->are(y=>'Real'); $y = Formula('y');
+Context("Numeric")->variables->are(x=>'Real'); $x = Formula('x');
+
+$showPartialCorrectAnswers = 1;
+
+TEXT(beginproblem);
+
+Title("Rules of Precedence (Again)");
+
+##############################################
+
+$Explanation = "${BITALIC}Explanation${EITALIC}";
+$Moral = "${BITALIC}Moral${EITALIC}";
+
+BEGIN_TEXT
+
+At this point, we can give the complete rules of precedence for
+how $WW computes the value of a mathematical formula. The operations
+are handled in the following order:
+$PAR
+
+\{BeginList\}
+$ITEM Evaluate expressions within parentheses.
+$ITEM Evaluate functions such as \{student "sin(x)"\},
+\{student "cos(x)"\}, \{student "log(x)"\}, \{student "sqrt(x)"\}.
+$ITEM Perform exponentiation (from right to left).
+$ITEM Perform multiplication and division, (from left to right).
+$ITEM Perform addition and subtraction, (from left to right).
+\{EndList\}
+$PAR
+
+This can get a little subtle, so be careful. The following are some
+typical traps for $WW users.
+$PAR
+
+\{BeginParList("UL")\}
+
+$ITEM
+$WW interprets \{student "sin 2x"\} to mean \((\sin${SP}2)*x\)
+$PAR
+
+$Explanation: Rule 2 tells you that $WW does evaluation of functions
+(like \{student "sin"\}) before multiplication. Thus $WW first
+computes \(\sin${SP}2\), and then multiplies the result by \(x\).
+$PAR
+
+$Moral: You must type \{student "sin(2x)"\} for the sine of \(2x\),
+even though we often write it as \(\sin${SP}2x\).
+Get in the habit of using parentheses for all your trigonometric
+functions.
+$PAR
+
+Now enter the following function:
+$PAR
+$BBLOCKQUOTE
+The cosine of \(5x\) is entered as \{ans_rule(15)\}.
+$EBLOCKQUOTE
+$PAR
+
+END_TEXT
+
+ANS(cos(5*$x)->cmp);
+
+BEGIN_TEXT
+
+$ITEM
+$WW interprets \{student "cos t${CARET}3"\} to mean \((\cos${SP}t)^3\)
+$PAR
+
+$Explanation: Rule 2 tells you that $WW does evaluation of functions
+(like \{student "cos"\}) before exponentiation. Thus $WW first
+computes \(\cos${SP}t\) and then raises the result to the power 3.
+$PAR
+
+$Moral: You must type in \{student "cos(t${CARET}3)"\} if you mean the
+cosine of \(t^3\), even though we sometimes write it as \(\cos${SP}t^3\).
+$PAR
+
+Now enter the following function:
+$PAR
+$BBLOCKQUOTE
+The tangent of \(y^4\) is entered as \{ans_rule(15)\}.
+$EBLOCKQUOTE
+$PAR
+
+END_TEXT
+
+ANS(tan($y**4)->cmp);
+
+BEGIN_TEXT
+
+$ITEM
+In mathematics, we often write \(\sin^2${SP}x\) to mean \((\sin x)^2\).
+$WW will let you write \{student "sin${CARET}2(x)"\} for this, though
+it is probably better to type \{student "(sin(x))${CARET}2"\} instead,
+as this makes your intention clearer. Note that a power of \(-1\), as
+in \{student "sin${CARET}(-1)(x)"\}, is a special case; it indicates the
+${BITALIC}inverse${EITALIC} function \{student "arcsin(x)"\} rather
+than a power.
+$PAR
+
+Now enter the following function:
+$PAR
+$BBLOCKQUOTE
+\(\sin^2${SP}x + \cos^3${SP}x\) = \{ans_rule(30)\}
+$EBLOCKQUOTE
+$PAR
+
+END_TEXT
+
+ANS((sin($x)**2 + cos($x)**3)->cmp);
+
+BEGIN_TEXT
+
+$ITEM
+\{student "e${CARET}3x"\} means \((e^3) x\) and not \(e^{(3x)}\) $PAR
+$PAR
+
+$Explanation: Rule 3 says that $WW does exponentiation before multiplication.
+Thus $WW first computes \{student "e${CARET}3"\}, with the result
+\(e^3\), and then multiplies the result by \(x\).
+$PAR
+
+$Moral: Always put parentheses around an exponent.
+Type \{student "e${CARET}(3x)"\} if you want \(e^{3x}\).
+$PAR
+
+Now enter the following function:
+$PAR
+$BBLOCKQUOTE
+\(2^{4x^3}\) = \{ans_rule(30)\}
+$EBLOCKQUOTE
+$PAR
+
+END_TEXT
+
+ANS((2**(4*($x**3)))->cmp);
+
+BEGIN_TEXT
+
+\{EndParList("UL")\}
+
+
+END_TEXT
+
+##############################################
+
+ENDDOCUMENT(); # This should be the last executable line in the problem.
--- /dev/null
+++ courses.dist/modelCourse/templates/setOrientation/prob09.pg
@@ -0,0 +1,114 @@
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+ "PGstandard.pl",
+ "MathObjects.pl",
+ "PGunion.pl",
+ "parserOrientation.pl",
+ "PGcourse.pl",
+);
+
+$showPartialCorrectAnswers = 1;
+
+TEXT(beginproblem);
+
+Title("Non-Numeric Answers");
+
+##############################################
+
+BEGIN_TEXT
+
+Sometimes you will be asked to enter answers that are not numbers.
+For example, if you are asked to determine a limit, the answer may be
+that the limit does not exist, so you might have to type \{student
+"DNE"\} to indicate this (the problem should tell you what word to
+use). Note that upper- and lower-case letters are not the same to
+$WW, so you will need to enter the answer exactly as indicated in the
+problem. (Well written problems will allow the answer to be
+entered either way.)
+$PAR
+
+$BBLOCKQUOTE
+Please enter ${LQ}\{student "DNE"\}${RQ} here: \{ans_rule(10)\}.
+$EBLOCKQUOTE
+
+END_TEXT
+
+ANS(String('DNE')->cmp);
+
+##################################################
+
+BEGIN_TEXT
+
+Other problems may require you to enter \(\infty\), which you do using
+the word ${LQ}\{student "INFINITY"\}${RQ} (in upper- or lower-case) or
+${LQ}\{student "INF"\}${RQ} for short. The problem should remind you
+of how to do this. Note that most operations are not defined on
+infinity, so you can't add or multiply something by infinity. You
+can, however, indicate \(-\infty\) by ${LQ}\{student "-INFINITY"\}${RQ},
+or ${LQ}\{student "-INF"\}${RQ}.
+$PAR
+
+$BBLOCKQUOTE
+Try entering \(-\infty\) here: \{ans_rule(10)\}.
+$EBLOCKQUOTE
+
+END_TEXT
+
+ANS((-(Infinity))->cmp);
+
+##################################################
+
+Context("Interval");
+
+$a = random(-5,5,1);
+$I = Compute("(-infinity,$a)");
+
+BEGIN_TEXT
+
+One common place where you use \(\infty\) is as an endpoint of
+an interval. $WW allows you to enter intervals using standard
+interval notation, including infinite endpoints. For example,
+\{student "[-2,5)"\} represents an interval that is closed on the
+left and open on the right, while \{student "[2,inf)"\} is an interval
+that extends infinitely to the right.
+$PAR
+
+$BBLOCKQUOTE
+Write the interval of points that are less than \($a\): \{ans_rule(20)\}.
+$EBLOCKQUOTE
+
+END_TEXT
+
+ANS($I->cmp);
+
+##################################################
+
+Context("Interval");
+
+$a = random(-8,-2,1);
+$b = random($a+1,$a+5,1);
+$c = random($b+1,$b+5,1);
+$I = Compute("[$a,$b) U ($b,$c)");
+
+BEGIN_TEXT
+
+Several intervals can be combined into one region using the ${LQ}set
+union${RQ} operation, \(\cup\), which is represented as ${LQ}\{student
+"U"\}${RQ} in $WW. For example, \{student "[-2,0] U (8,inf)"\}
+represents the points from \(-2\) to \(0\) together with everything
+bigger than 8.
+$PAR
+
+$BBLOCKQUOTE
+Write the set of points from \($a\) to \($c\) but excluding \($b\) and \($c\)
+as a union of intervals: \{ans_rule(20)\}.
+$EBLOCKQUOTE
+
+END_TEXT
+
+ANS($I->cmp);
+
+##################################################
+
+ENDDOCUMENT(); # This should be the last executable line in the problem.
--- /dev/null
+++ courses.dist/modelCourse/templates/setOrientation/login_info.txt
@@ -0,0 +1,20 @@
+<FONT SIZE="+1"><B>Welcome to WeBWorK!</B></FONT>
+
+<P ALIGN="JUSTIFY">
+
+Your username is the same as the one used for your Union College
+email, and your initial password is your Union College Student ID
+number (you will change that after you log in).
+
+<P ALIGN="JUSTIFY">
+
+Log in and follow the instructions that will appear in this panel once
+you have done so. For the first assignment, <I>do not</I> log in as a
+guest user or using a friend's account. If you do, you will not
+receive credit for doing the asignment!
+
+<P ALIGN="JUSTIFY">
+
+On future assignments, you can use the guest accounts to get
+additional practice problems that are similar to the ones in your
+homework set, but with different numbers.
--- /dev/null
+++ courses.dist/modelCourse/templates/setOrientation/prob01.pg
@@ -0,0 +1,82 @@
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+ "PGstandard.pl",
+ "PGunion.pl",
+ "parserOrientation.pl",
+ "PGcourse.pl",
+);
+
+
+TEXT(beginproblem);
+
+Title("Understanding $WW Problem Pages");
+
+##############################################
+BEGIN_TEXT
+
+The $WW screen is divided into several areas, each used for a
+different purpose. You will need to understand these
+in order to use $WW effectively.
+$PAR
+
+At the upper left are the navigation buttons that allow you to move
+from problem to problem. The ${LQ}Next$RQ and ${LQ}Previous$RQ
+buttons, naturally, send you to the next and previous problems. The
+${LQ}Prob. List$RQ button takes you back to the opening
+page for the homework set (the one that lists all the problems and
+gives the instructions for the homework set).
+$PAR
+
+The area below the navigation buttons is where $WW tells you about
+your score for the current problem. When you have submitted your
+answers, this is where you will be given information about what
+answers you got right and wrong. (It will be shown on a grey
+backgound to help make it stand out; you will see this later.) This
+area also shows you how many points a problem is worth.
+$PAR
+
+The main part of the page is the text of the problem you are trying to
+answer, including blank boxes for you to enter your answers. (There
+aren't any such boxes on this page, because you are not being asked
+any questions here, but usually there will be one or more answer blanks
+on a page.)
+$PAR
+
+Below the problem text is a message area where you may be informed
+about how partial credit is handled in multi-part problems. Other
+information also may appear there, such as a message indicating that
+the due date is passed, or that answers are available.
+$PAR
+
+In the red panel at the left, instead of the list of homework sets, you
+now have a list of the problems within this assignment. You can go to
+any problem just by clicking on it. The checkboxes at the bottom of
+the panel are discussed in the next problem.
+$PAR
+
+In the center of the top red panel is an indication of how much time
+you have left to work on the problems for this set. Note that this is
+computed at the moment you downloaded the problem page; if you use the
+${LQ}Back$RQ and ${LQ}Forward$RQ buttons on your browser, this does
+not reload the page, so the times will not be updated. Reload the
+page using your browser's Reload or Refresh buttons to get the current
+time.
+$PAR
+
+The buttons at the bottom of the screen, including the ${LQ}Submit
+Answers$RQ button, are discussed in the next problem. At this point,
+you can get credit for Problem 1 by pressing the ${LQ}Submit
+Answers$RQ button at the bottom of the page (even though there was no
+answer to submit), and then pressing the ${LQ}Next$RQ button at the
+top of the screen to go on to the next problem.
+
+END_TEXT
+
+
+install_forgiving_grader();
+$showPartialCorrectAnswers = 1;
+
+##############################################
+
+ENDDOCUMENT(); # This should be the last executable line in the problem.
--- /dev/null
+++ courses.dist/modelCourse/templates/setOrientation/prob04.pg
@@ -0,0 +1,96 @@
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+ "PGstandard.pl",
+ "PGchoicemacros.pl",
+ "MathObjects.pl",
+ "PGunion.pl",
+ "alignedChoice.pl",
+ "contextLimitedNumeric.pl",
+ "parserOrientation.pl",
+ "PGcourse.pl",
+);
+
+$showPartialCorrectAnswers = 1;
+
+TEXT(beginproblem);
+
+Title("Rules of Precedence");
+
+##############################################
+
+BEGIN_TEXT
+
+The rules of precedence determine the order in which the mathematical
+operations are performed by $WW. It is essential for you to understand
+these so that you know how $WW interprets what you type in. If there
+are no parentheses and no functions (such as \{computer "sin"\} or
+\{computer "log"\}), then $WW computes the value of your answer by
+performing exponentiation first, followed by multiplication and division
+(from left to right), and finally addition and subtraction
+(from left to right).
+$PAR
+
+If there are expressions within parentheses, those expressions are
+simplified first. We'll talk about functions (and give a more
+complete list of rules) in a later problem.
+
+$PAR
+Examples:
+\{BeginList("UL")\}
+$ITEM
+\{student "4*3/6 = 12/6 = 2"\} (multiplications and divisions are done
+from left to right), and \{student "2*7 = 14"\}, so
+\{student "4*3/6-2*7+10 = 2 - 14 + 10 = -2"\}.
+$ITEM
+\{student "12/3/2 = 4/2 = 2"\} (multiplications and divisions are done
+from left to right).
+$ITEM
+\{student "12/(3/2) = 12/1.5 = 8"\}
+(expressions inside parentheses are calculated before anything else).
+$ITEM
+\{student "2*4${CARET}2 = 2*16 = 32"\} (exponentiation is done before multiplication),
+so \{student "2*4${CARET}2 - 3*4 = 2*16 - 3*4 = 32 - 12 = 20"\}.
+\{EndList("UL")\}
+$PAR
+
+To practice these rules, completely simplify the following
+expressions. Because the point of this problem is for you to do the
+numerical calculations correctly, $WW will only accept sufficiently
+accurate decimal numbers as the answers to these problems.
+It will not simplify any expressions, including fractions.
+$PAR
+
+END_TEXT
+
+$a = random(1,6,1);
+$b = random(2,6,1);
+$c = random(3,6,1);
+$d = random(2,25,1);
+$al = new_aligned_list(equals => 1);
+
+$al->qa(
+ computer("$a+$b*$c"), Real($a+($b*$c))->cmp,
+# computer("($a+$b)*$c"), Real(($a+$b)*$c)->cmp,
+# computer("($a+$b)/$c"), Real(($a+$b)/$c)->cmp,
+# computer("$a+$b/$c"), Real($a+($b/$c))->cmp,
+ computer("$a/$b*$c"), Real(($a/$b)*$c)->cmp,
+# computer("$a/($b*$c)"), Real($a/($b*$c))->cmp,
+# computer("$a/$b/$c"), Real(($a/$b)/$c)->cmp,
+ computer("3*$b-$a/5*$c+$d"), Real((3*$b)-(($a/5)*$c)+$d)->cmp,
+ computer("2${CARET}$b+1"), Real((2**$b)+1)->cmp,
+ computer("2${CARET}($b+1)"), Real(2**($b+1))->cmp,
+);
+
+BEGIN_TEXT
+$BBLOCKQUOTE
+\{$al->print_q\}
+$EBLOCKQUOTE
+
+END_TEXT
+
+ANS($al->correct_ans);
+
+##############################################
+
+ENDDOCUMENT(); # This should be the last executable line in the problem.
--- /dev/null
+++ courses.dist/modelCourse/templates/setOrientation/prob06.pg
@@ -0,0 +1,130 @@
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+ "PGstandard.pl",
+ "MathObjects.pl",
+ "PGunion.pl",
+ "parserOrientation.pl",
+ "PGcourse.pl",
+);
+
+
+$showPartialCorrectAnswers = 1;
+
+Context("Numeric")->variables->are(y=>'Real'); $y = Formula('y');
+Context("Numeric")->variables->are(x=>'Real'); $x = Formula('x');
+Context()->flags->set(limits=>[0,2]);
+
+TEXT(beginproblem);
+
+Title("Using Parentheses Effectively");
+
+##############################################
+
+BEGIN_TEXT
+
+One of the hardest parts about using parentheses is making sure that
+they match up correctly. Here are a couple of hints to help you with
+this:
+
+$PAR
+END_TEXT
+
+$BRACES = HTML('{}','\char`\{\char`\}');
+
+BEGIN_TEXT
+
+\{BeginParList("UL")\}
+
+$ITEM
+Several types of parentheses are allowed: \{student "()"\},
+\{student "[]"\}, and \{student $BRACES\}. When you need to nest
+parentheses inside other parentheses, try using a different type for
+each so that you can see more easily which ones match up.
+$ITEMSEP
+
+$ITEM
+When you type a left parenthesis, type the corresponding right
+parenthesis at the same time, then position your cursor between them and
+type the expression that goes inside. This can save you a
+lot of time hunting for mismatched parentheses.
+$ITEMSEP
+
+$ITEM
+When you have a complicated answer, type a template for
+the structure of your result first. For example, suppose that you are
+planning to enter the fraction
+\[\frac{2x^2-5}{(x+1)(3x^{3x} - 22)}.\]
+A good way to start would be to type in \{student "()/[()*()]"\}.
+This shows a template of one number divided by the product of two
+other numbers. (Note that \{student "()/()*()"\} would not be a good
+way to start; do you see why?) Now when you fill in the expressions, you
+will be sure your parentheses balance correctly.
+$PAR
+
+Although $WW understands that numbers written next to each other are
+meant to be multiplied (so you do not have to use \{student "*"\} to
+indicate multiplication if you don't want to), it is often useful for
+you to include the \{student "*"\} anyway, as it helps you keep track
+of the structure of your answer.
+$PAR
+
+$ITEM
+To see how $WW is interpreting what you type, enter your answer and
+then click the ${LQ}Preview Answers$RQ button, which is next to the
+${LQ}Submit Answers$RQ button below. $WW will show you what it thinks
+you entered (the preview appears in your answer area at the top of the
+page). Previewing your answer does not submit it for credit; that only
+happens when you press the ${LQ}Submit Answers$RQ button.
+$ITEMSEP
+
+$ITEM
+When division or exponentiation are involved, it is a good idea to
+use parentheses even in simple situations, rather than relying on the
+order of operations. For example, 1/2x and (1/2)x both mean the same
+thing (first divide 1 by 2, then multiply the result by x), but the
+second makes it easier to see what is going on. Likewise, use
+parentheses to clarify expressions involving exponentiation. Type
+\{student "(e${CARET}x)${CARET}2"\} if you mean \((e^x)^2\), and type
+\{student "e${CARET}(x${CARET}2)"\} if you mean \(e^{(x^2)}\).
+
+\{EndParList("UL")\}
+
+$PAR
+$HR
+$PAR
+
+Now enter the following functions:
+
+$BBLOCKQUOTE
+
+\{@ExampleDefaults = (ans_rule_len => 50, ans_rule_height => 1);
+ BeginExamples\}
+
+\{BeginExample(QA(($x**(2*$x-1))/(($x**2-$x)*(3*$x+5))))\}
+Start with the template \{student "[x${CARET}()]/[()*()]"\}.
+\{EndExample\}
+\{ExampleRule\}
+
+\{BeginExample(QA((($y+3)*($y**3+$y+1))/((2*$y**2-2)*(5*$y+4))))\}
+Start by putting in an appropriate template. This means that you
+should begin by looking at the function and thinking about how many
+pieces are used to construct it and how those pieces are related.
+Once you have entered your answer, try using the ${LQ}Preview$RQ button
+to see how $WW is interpreting your answer.
+\{EndExample\}
+\{ExampleRule\}
+
+\{BeginExample(QA((($x+1)/($x-2))**4))\}
+Start by putting in an appropriate template.
+\{EndExample\}
+
+\{EndExamples\}
+
+$EBLOCKQUOTE
+
+END_TEXT
+
+##############################################
+
+ENDDOCUMENT(); # This should be the last executable line in the problem.
--- /dev/null
+++ courses.dist/modelCourse/templates/setOrientation/prob11.pg
@@ -0,0 +1,71 @@
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+ "PGstandard.pl",
+ "MathObjects.pl",
+ "PGunion.pl",
+ "parserOrientation.pl",
+ "PGcourse.pl",
+);
+
+$showPartialCorrectAnswers = 1;
+
+TEXT(beginproblem);
+
+Title("Multiple Answers in One Blank");
+
+##############################################
+
+Context("Numeric");
+
+$a = random(1,5,1);
+$f = Formula("1/(x^2-$a^2)")->reduce;
+
+Context()->texStrings;
+BEGIN_TEXT
+
+You may sometimes be asked to provide more than one answer in a single
+answer blank. For example, you may need to enter all the values where
+a function is not defined. In this case, you should separate your
+answers by commas. Such an answer is called a
+${BITALIC}list${EITALIC} in $WW. Note that you need not enter
+multiple answers for a list; a single number is a legal answer (there
+might only be one point where the function is undefined, for
+instance).
+$PAR
+
+$BBLOCKQUOTE
+The function \(\displaystyle f(x)=$f\) is not defined at these \(x\) values: \{ans_rule(20)\}.
+$EBLOCKQUOTE
+
+END_TEXT
+Context()->normalStrings;
+
+ANS(List($a,-$a)->cmp);
+
+##################################################
+
+$a = random(1,5,1);
+$f = Formula("1/(x^2+$a^2)")->reduce;
+
+Context()->texStrings;
+BEGIN_TEXT
+
+When you are asked for a list of numbers, another possible answer is
+that there are ${BITALIC}no${EITALIC} numbers that satisfy the
+requirements. In that case, you should enter ${LQ}\{student
+"NONE"\}${RQ} as your answer.
+$PAR
+
+$BBLOCKQUOTE
+The function \(\displaystyle f(x)=$f\) is not defined at these \(x\) values: \{ans_rule(20)\}.
+$EBLOCKQUOTE
+
+END_TEXT
+Context()->normalStrings;
+
+ANS(String('NONE')->cmp);
+
+##################################################
+
+ENDDOCUMENT(); # This should be the last executable line in the problem.
--- /dev/null
+++ courses.dist/modelCourse/templates/setOrientation/prob02.pg
@@ -0,0 +1,108 @@
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+ "PGstandard.pl",
+ "PGunion.pl",
+ "parserOrientation.pl",
+ "PGcourse.pl",
+);
+
+
+TEXT(beginproblem);
+
+Title("Controlling $WW");
+
+##############################################
+
+BEGIN_TEXT
+
+The buttons at the bottom of the screen are what cause $WW to process
+your answers. Nothing that you type will have any effect until you
+press one of these buttons.
+$PAR
+
+The ${LQ}Submit Answers$RQ button causes $WW to check your answers and
+report your score for the problem. You can continue to work on a
+problem until you get it right, so don't be afraid to submit your
+answer even if you have only finished parts of the problem or are
+not sure of the correctness of your answer. If the due date is
+passed and the answers are available, you can click the ${LQ}Show
+Correct Answers$RQ button before pressing ${LQ}Submit$RQ.
+If you do, the correct answer(s) will be displayed in the answer area
+at the top of the screen along with the answers you have provided.
+$PAR
+
+If you have typed in a complicated answer, or are being told your
+answer is incorrect when you think it's right, you may want to use the
+${LQ}Preview Answer$RQ button. This will ask $WW to display at the
+top of the page its interpretation of what you have entered. This
+can be used to help spot errors in your typing, and verify that $WW
+understands your answer the way you intend it to. (This is discussed
+further in a later problem.)
+$PAR
+
+At the bottom of the red panel at the left is a box that allows you to
+change how the problem is displayed. The equations within the problem
+can be represented in three different ways:
+
+\{BeginParList("UL")\}
+
+$ITEM
+${LQ}images${RQ} mode is the default choice (what $WW uses unless you tell
+it otherwise). It produces the accurate mathematical notation,
+with the disadvantages of being slightly slower, and not printing well
+if you want to print out a single problem.
+$ITEMSEP
+
+$ITEM
+${LQ}formatted-text${RQ} mode produces results quickly, but more
+complicated mathematics may be difficult to read in this
+mode. For example, some fractions and integrals are not easy to read
+in formatted-text mode.
+$ITEMSEP
+
+$ITEM
+${LQ}jsMath${RQ} mode uses a JavaScript program and Cascading Style
+Sheets (CSS) to display the mathematics. This produces good results,
+and is particularly nice if you need to change the size of the fonts
+in your browser or wish to print out a single problem. For best
+results, however, you should download and install some fonts that
+jsMath uses; there is a link to the fonts on the jsMath control panel,
+which you can activate using the small jsMath button that will appear
+at the lower right of the screen when you activate this mode. The
+first problem you view using jsMath may take a little longer to
+appear, as the JavaScript program is being loaded into your browser,
+but things should run faster after that.
+
+\{EndParList("UL")\}
+$PAR
+
+Choose whichever mode is most comfortable for you. You can always
+select a different mode if a particular problem needs it. Here is a
+sample of some simple mathematics, \(x^2 + 3\), and a more complicated
+expression, \(\frac{x(1-x)}{2x + 1}\). Try changing the display mode
+by clicking the ${LQ}formatted-text$RQ or ${LQ}jsMath${RQ} radio
+button and then pressing the ${LQ}Apply Options${RQ} button to cause
+the page to be reformatted. Then change the display mode to back to
+${LQ}images$RQ mode for the rest of the homework set.
+$PAR
+
+The ${LQ}Show saved answers${RQ} checkbox tells whether you
+want $WW to fill in the answer blanks with your previous answers or
+not. (If you like, you can test this out on the next problem, since
+there are no answer blanks in this one.)
+$PAR
+
+You are now ready to learn how to enter answers into $WW. Press the
+${LQ}Submit Answers${RQ} button to get credit for this problem, and
+then press the ${LQ}Next$RQ button at the top of the page to go on to
+the next one.
+
+END_TEXT
+
+install_forgiving_grader();
+$showPartialCorrectAnswers = 1;
+
+##############################################
+
+ENDDOCUMENT(); # This should be the last executable line in the problem.
--- /dev/null
+++ courses.dist/modelCourse/templates/setOrientation/prob07.pg
@@ -0,0 +1,138 @@
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+ "PGstandard.pl",
+ "PGchoicemacros.pl",
+ "MathObjects.pl",
+ "PGunion.pl",
+ "alignedChoice.pl",
+ "parserOrientation.pl",
+ "PGcourse.pl",
+);
+
+
+$showPartialCorrectAnswers = 1;
+
+TEXT(beginproblem);
+
+Title("Constants and Functions in $WW");
+
+##############################################
+
+BEGIN_TEXT
+
+$WW knows the value of \(\pi\), which you can enter as \{student
+"pi"\}, and the value of \(e\) (the base of the natural logarithm,
+\(e\approx 2.71828\)), which you can enter simply as the letter
+\{student "e"\}.
+$PAR
+
+$WW also understands many standard functions. Here
+is a partial list. Notice that all the function names start with a lower-case
+letter. Capitalizing the function will lead to an error message.
+
+\{BeginParList("UL")\}
+
+$ITEM
+$WW knows about \{student "sin(x)"\}, \{student "cos(x)"\}, \{student
+"tan(x)"\}, \{student "arcsin(x)"\}, \{student "arccos(x)"\},
+\{student "arctan(x)"\} and the other trigonometric functions and their
+inverses. $WW ${BITALIC}always$EITALIC uses radian mode for these
+functions.
+$PAR
+
+$WW will evaluate trigonometric functions for you in many situations.
+For example, the following blank is expecting the value \(-1\).
+Remember that \(\cos(\pi) = -1\), so enter \{student "cos(pi)"\}
+and submit it.
+
+$PAR
+$BBLOCKQUOTE
+\{ans_rule(10)\} \(= -1\)
+$EBLOCKQUOTE
+$PAR
+
+END_TEXT
+
+ANS(Real(-1)->cmp);
+
+##################################################
+
+BEGIN_TEXT
+
+$ITEM
+The square root \(\sqrt x\) is represented by the function \{student
+"sqrt(x)"\} or by \{student "x${CARET}(1/2)"\}.
+$ITEMSEP
+
+$ITEM
+The function \{student "log(x)"\} means the ${BITALIC}natural$EITALIC
+logarithm of \(x\) (the logarithm with base \(e\)), not the common
+logarithm (the logarithm with base \(10\), sometimes written
+\(\log_{10}\)). You can also write \{student "ln(x)"\} for the
+natural logarithm of \(x\), so \{student "log(x)"\} and \{student "ln(x)"\}
+mean the same thing. Use \{student "log10(x)"\} for the base 10
+logarithm of \(x\).
+$ITEMSEP
+
+$ITEM
+The exponential function with base \(e\) can be entered as
+\{student "e${CARET}x"\} or \{student "exp(x)"\}. The second notation
+is convenient if you have a long, complicated exponent.
+$ITEMSEP
+
+$ITEM
+The absolute value function, \(|x|\), should be entered as
+\{student "|x|"\} or \{student "abs(x)"\}.
+$ITEMSEP
+
+$ITEM
+The inverse sine function, \(\sin${CARET}{-1}(x)\), is written
+\{student "arcsin(x)"\} or \{student "asin(x)"\} or \{student "sin${CARET}(-1)(x)"\}
+in $WW. Note that this is ${BITALIC}not$EITALIC the same as
+\{student "(sin(x))${CARET}(-1)"\}, which means \(\frac{1}{\sin(x)}\).
+The other inverse functions are handled similarly.
+
+\{EndParList("UL")\}
+
+$PAR
+$HR
+$PAR
+
+Now enter the following functions:
+$PAR
+END_TEXT
+
+$al = new_aligned_list(
+ equals => 1,
+ ans_rule_len => 40,
+ tex_spacing => "5pt",
+ spacing => 10,
+);
+
+Context("Numeric")->variables->are(t=>'Real'); $t = Formula('t');
+Context("Numeric")->variables->are(y=>'Real'); $y = Formula('y');
+Context("Numeric")->variables->are(x=>'Real'); $x = Formula('x');
+Context()->flags->set(limits=>[-2,10]);
+
+$al->qa(
+# DisplayQA(sqrt($y**2+1)),
+# DisplayQA(sin(3*$x+1)),
+ DisplayQA(1/tan($x)),
+ DisplayQA(asin($t+1)->with(limits=>[-2,0])),
+ DisplayQA((sin($x)-cos($x))/sqrt(2*$x-7))
+);
+
+BEGIN_TEXT
+
+$BBLOCKQUOTE
+\{$al->print_q\}
+$EBLOCKQUOTE
+
+END_TEXT
+
+ANS($al->correct_ans);
+
+##############################################
+
+ENDDOCUMENT(); # This should be the last executable line in the problem.
--- /dev/null
+++ courses.dist/modelCourse/templates/setOrientation/prob15.pg
@@ -0,0 +1,90 @@
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+ "PGstandard.pl",
+ "PGunion.pl",
+ "parserOrientation.pl",
+ "PGcourse.pl",
+);
+
+
+TEXT(beginproblem);
+
+Title("When You're Stuck...");
+
+##############################################
+
+BEGIN_TEXT
+The goal of the $WW software is to help you learn mathematics by giving
+you immediate feedback on the correctness of your answer to a problem.
+It is not designed to be a tutorial or to replace humans in
+explaining the material to you. As with any learning tool, it is
+up to you to make efficient and effective use of the software.
+
+Here are some things you can try when you are stuck on a problem.
+$PAR
+
+\{BeginParList("UL")\}
+$ITEM
+Reread the problem carefully to see if there are any instructions
+that you did not notice.
+$ITEMSEP
+
+$ITEM
+Check carefully for directions on the Problem List page.
+You can get to this page by pressing the ${LQ}Prob. List$RQ button at the
+top of any problem page.
+$ITEMSEP
+
+$ITEM
+Look in the textbook for similar problems or relevant methods.
+$ITEMSEP
+
+$ITEM
+Talk to your instructor during office hours.
+$ITEMSEP
+
+$ITEM
+Ask a fellow student for help.
+$ITEMSEP
+
+$ITEM
+Use the Calculus Help Center. (Be sure to take a printout of
+the problem with you. The tutors will need the ${BITALIC}exact$EITALIC
+wording of the problem.)
+$ITEMSEP
+
+$ITEM
+Use the ${LQ}Email instructor$RQ button at the bottom of the problem page
+to send e-mail to your instructor. Include in your message the details of
+what you have tried so far. If you are having a software problem,
+include details about the error messages you are getting.
+
+\{EndParList("UL")\}
+
+$PAR
+
+When you are truly stuck on a $WW problem, you should turn to other
+sources (humans or books) for help, because it is not in your best
+interest to guess repeatedly instead of thinking about what you might
+be doing wrong.
+$PAR
+
+To get credit for this problem, you must click the ${LQ}Submit
+Answers$RQ button. Then you can use the ${LQ}Prob. List$RQ button at
+the top of the page to return to the problem list page. You will see
+that the problems you have done have been labeled as correct or
+incorrect, and 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 ${BITALIC}always$EITALIC 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. $PAR
+
+END_TEXT
+
+install_forgiving_grader();
+$showPartialCorrectAnswers = 1;
+
+##############################################
+
+ENDDOCUMENT(); # This should be the last executable line in the problem.
--- /dev/null
+++ courses.dist/modelCourse/templates/setOrientation/options_info.txt
@@ -0,0 +1,31 @@
+<FONT SIZE="+1"><B>Change Your Password</B></FONT>
+
+<p align="justify">
+
+If you haven't already changed your password, you should do so now.
+To do this, type your OLD password in the top box at the left and
+your NEW password in the two lower boxes at the left,
+then press the "Change User Options" button.
+
+<p align="justify">
+
+Your password should be at least 6 characters long, and should include
+something other than just letters. Don't make it something that is
+easily guessed, and don't make it the same as the password for your
+e-mail account!
+
+<p align="justify">
+
+If you prefer to receive your e-mail at a location other than your
+Union College account, you should change your e-mail address in the box
+at the left. Be aware, however, that your professor (and others on
+the Union campus) may still send mail to your Union College address,
+so you should check that account regularly anyway. Note that you can
+have your Union college e-mail forwarded to another address
+automatically if you wish.
+
+<p align="justify">
+
+Finally, when you have made the changes that you want to make, select
+the "Homework Sets" link at the top of the red panel at the far left
+to get back to the list of homework sets.
--- /dev/null
+++ courses.dist/modelCourse/templates/setOrientation/prob03.pg
@@ -0,0 +1,142 @@
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+ "PGstandard.pl",
+ "MathObjects.pl",
+ "contextLimitedNumeric.pl",
+ "PGunion.pl",
+ "parserOrientation.pl",
+ "PGcourse.pl",
+);
+
+
+$showPartialCorrectAnswers = 1;
+
+TEXT(beginproblem);
+
+Title("Typing in Your Answers");
+
+##############################################
+
+BEGIN_TEXT
+
+Here are the standard symbols that $WW, along with most other
+computer software, uses for arithmetic operations:
+$PAR
+
+\{
+ BeginTable().
+ Row([$BBOLD.'Symbol'.$EBOLD,
+ $BBOLD.'Meaning'.$EBOLD,
+ $BBOLD.'Example'.$EBOLD]).
+ TableLine().
+ Row([computer("+"),'Addition',computer("3+4 = 7")],align=>"CENTER").
+ Row([computer("-"),'Subtraction',computer("3-4 = -1")],align=>"CENTER").
+ Row([computer("*"),'Multiplication',computer("3*4 = 12")],align=>"CENTER").
+ Row([computer("/"),'Division',computer("3/4 = .75")],align=>"CENTER").
+ Row([computer($CARET)." or ".computer("**"),'Exponentiation',
+ computer("3${CARET}4 = 81")." or ".
+ computer("3**4 = 81")],align=>"CENTER").
+ TableLine().
+ EndTable()
+\}
+$PAR
+
+END_TEXT
+
+##################################################
+
+$a = non_zero_random(-5,5,1);
+$b = non_zero_random(-5,5,1);
+$c = non_zero_random(-3,3,1) * 2;
+$d = non_zero_random(-5,5,1);
+
+BEGIN_TEXT
+
+Sometimes $WW will insist that you calculate the value of an
+expression as a single number before you enter it. For example,
+calculate the value of \($c($a - $b) - ($c - $d)\) and enter it in
+the following blank.
+(Here you have to enter a single integer; the question is testing
+whether you can do the operations correctly.)
+
+$PAR
+$BBLOCKQUOTE
+\($c($a - $b) - ($c - $d)\) = \{ans_rule(10)\}
+$EBLOCKQUOTE
+$PAR
+END_TEXT
+
+Context("LimitedNumeric");
+$ans = $c*($a - $b) - ($c - $d);
+ANS(Real($ans)->cmp);
+
+##################################################
+
+BEGIN_TEXT
+
+Most often you will not have to simplify your answer, but can let
+$WW do this for you. The following blanks are all expecting
+the value 16. Try entering it several different ways, such as
+\{student "7+9"\}, \{student "18-2"\}, \{student "8*2"\},
+\{student "32/2"\}, and \{student "4${CARET}2"\}. Note: pressing
+the ${LQ}Tab$RQ key on your keyboard will move you from one answer
+box to the next.
+
+$PAR
+$BBLOCKQUOTE
+16 = \{ans_rule(8)\} or
+\{ans_rule(8)\} or
+\{ans_rule(8)\} or
+\{ans_rule(8)\} or
+\{ans_rule(8)\}
+$EBLOCKQUOTE
+$PAR
+
+END_TEXT
+
+Context("Numeric");
+
+ANS(
+ Real(16)->cmp,
+ Real(16)->cmp,
+ Real(16)->cmp,
+ Real(16)->cmp,
+ Real(16)->cmp,
+);
+
+##################################################
+
+BEGIN_TEXT
+
+$WW also understands that quantities written next to each other are
+supposed to be multiplied. For example, you can enter \{student
+"(9)(7)"\} instead of \{student "63"\}. Most often this is used when
+one quantity is a number and the other a variable or function. For
+instance, \{computer "2x"\} means \{computer "2*x"\}, while \{computer
+"3sin(5x)"\} means \{computer "3*sin(5*x)"\}. The following blank is
+expecting the value 100; try entering it as
+\{student("4(30-5)")\}.
+
+$PAR
+$BBLOCKQUOTE
+100 = \{ans_rule(10)\}
+$EBLOCKQUOTE
+$PAR
+END_TEXT
+
+ANS(Real(100)->cmp);
+
+##################################################
+
+BEGIN_TEXT
+
+${BITALIC}When you are ready, don't forget to press the ${LQ}Submit Answers${RQ}
+button to ask $WW to check your work. Once you get the answers
+correct, press ${LQ}Next${RQ} to go on.${EITALIC}
+
+END_TEXT
+
+##################################################
+
+ENDDOCUMENT(); # This should be the last executable line in the problem.
--- /dev/null
+++ courses.dist/modelCourse/templates/setOrientation/setHeader.pg
@@ -0,0 +1,105 @@
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+ "PGstandard.pl",
+ "PGunion.pl",
+ "PGcourse.pl",
+);
+
+$WW = "WeBWorK";
+
+if ($displayMode eq 'TeX') {
+
+TEXT($BEGIN_ONE_COLUMN,
+ '\noindent{\large\bf '.$studentName.'}\hfill{\large\bf '.$course.'}',
+ '\par\noindent',
+"
+This set of $WW problems is designed to orient you to the
+$WW system and to help you learn how to communicate with the
+software. You will be learning about how to understand what
+you see on the screen and about how to enter your answers when you do
+the problems. You will practice entering numerical and functional
+expressions and look at ways to find and correct errors in your
+entries.
+
+",
+ "WeBWorK assignment $setNumber is due on $formattedDueDate.",
+ $END_ONE_COLUMN
+);
+
+} else {
+
+BEGIN_TEXT
+
+${BBOLD}Orientation to WeBWorK${EBOLD}
+$PAR
+
+This set of $WW problems is designed to orient you to the $WW system
+and to help you learn how to communicate with the software. You will
+be learning about how to understand what you see on the screen and
+about how to enter your answers when you do the problems. You will
+practice entering numerical and functional expressions and look at
+ways to find and correct errors in your entries.
+$PAR
+
+Start by examining the features of this page. The red panels at the
+left and top help you to navigate to the different pages available in
+WeBWorK. You have already seen the ${LQ}Homework Sets${RQ} page,
+which lists all the homework assignments, and the
+${LQ}Password/Email${RQ} page, which lets you change your password or
+email address. The ${LQ}Grades${RQ} link takes you to a page that
+shows your scores on the various assignments (but there is nothing
+much to show at this point).
+$PAR
+
+\{
+#The ${LQ}Report Bugs${RQ} button is for reporting bugs in the WeBWorK
+#System itself to the developers WeBWorK. It is unlikely that
+#you will need to use that yourself. If you are having difficulty with
+#WeBWorK, you should contact your professor using the ${LQ}Email
+#Instructor${RQ} button instead. This should be available on nearly
+#every page, so you always have a quick way to reach your professor.
+#$PAR
+\}
+
+At the bottom of the red panel is the list of homework sets that have
+been assigned to you. These links allow you to go to any assignment
+you want to work on. Right now, only the Orientation set is listed,
+but as the term progresses, the list will grow.
+$PAR
+
+The data in the red panel at the top of the page tells you where you
+are in WeBWorK's hierarchy of pages, but you can ignore that for the
+most part. There is an additional logout button at the far right,
+however, that you will need to use when you are done using $WW (don't
+press it yet).
+$PAR
+
+\{
+#The yellow question mark icon is a ${LQ}Help${RQ}
+#button for system documentation, but there is not much of that
+#available at the moment.
+#$PAR
+\}
+
+The main information on this page is located in the large white panel
+to the left. It shows the status of the problems in this assignment,
+and your score on the set so far. Since you haven't yet tried any of
+the problems, your score is zero, but after you work on some of them,
+the number of attempts and the score will reflect the work you have
+done.
+$PAR
+
+Each problem number is a link to that problem in the homework set.
+You can click on one to get to any specific problem. To begin the
+orientation assignment, click on the link for Problem 1. When you are
+done working, be sure to dismiss your connection to the server by
+clicking on ${LQ}Log Out${RQ}, so that no one else can gain access to
+your account.
+$PAR
+
+END_TEXT
+
+}
+
+ENDDOCUMENT(); # This should be the last executable line in the problem.
--- /dev/null
+++ courses.dist/modelCourse/templates/setOrientation/prob10.pg
@@ -0,0 +1,131 @@
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+ "PGstandard.pl",
+ "MathObjects.pl",
+ "PGunion.pl",
+ "parserVectorUtils.pl",
+ "parserOrientation.pl",
+ "PGcourse.pl",
+);
+
+$showPartialCorrectAnswers = 1;
+
+TEXT(beginproblem);
+
+Title("Points and Vectors");
+
+##############################################
+
+Context("Vector");
+
+$p0 = non_zero_point2D();
+$p1 = $p0 + 2*non_zero_point2D(2,2,1);
+
+Context()->texStrings;
+BEGIN_TEXT
+
+Some problems will ask you to enter an answer that is a point rather
+than a number. You enter points in $WW just as you would expect: by
+separating the coordinates by commas and enclosing them all in
+parentheses. So \{student "(2,-3)"\} represents the point in the
+plane that has an \(x\)-coordinate of \(2\) and \(y\)-coordinate of
+\(-3\).
+$PAR
+
+$BBLOCKQUOTE
+What point is halfway between \($p0\) and \($p1\)? \{ans_rule(20)\}.
+$EBLOCKQUOTE
+
+END_TEXT
+Context()->normalStrings;
+
+ANS((($p0+$p1)/2)->cmp);
+
+##################################################
+
+$P = non_zero_point3D();
+
+$LANGLE = HTML('<',"\char`\<");
+$RANGLE = HTML('>',"\char`\>");
+
+Context()->flags->set(ijk=>1);
+Context()->texStrings;
+BEGIN_TEXT
+
+Other problems require you to provide a vector as your answer. $WW
+allows you to enter vectors either as a list of coordinates enclosed
+in angle braces, \{student $LANGLE\} and \{student $RANGLE\}, or as a
+sum of multiples of the coordinate unit vectors, \(\{i\}\), \(\{j\}\)
+and \(\{k\}\), which you enter as \{student "i"\}, \{student "j"\} and
+\{student "k"\}. For example, \{student "${LANGLE}1,3,-2${RANGLE}"\}
+represents the same vector as \{student "i+3j-2k"\}.
+$PAR
+
+$BBLOCKQUOTE
+What vector points from the origin to the point \($P\)? \{ans_rule(20)\}.
+$EBLOCKQUOTE
+
+END_TEXT
+Context()->normalStrings;
+Context()->flags->set(ijk=>0);
+
+ANS(Vector($P)->cmp);
+
+##################################################
+
+$v0 = non_zero_vector3D();
+$v1 = non_zero_vector3D();
+
+$SPACING = HTML(' ');
+$BNOBR = HTML('<NOBR>');
+$ENOBR = HTML('</NOBR>');
+
+Context()->texStrings;
+BEGIN_TEXT
+
+Just as you can enter a number by giving an equation that reduces to it,
+$WW allows you to enter points and vectors by giving equations for the
+individual coordinates, or by using a vector-valued equation that
+reduces to your answer. For example,
+$PAR
+$BCENTER
+$BNOBR\{student "${LANGLE}1-(-3),2-sqrt(4),6/2${RANGLE}"\}$ENOBR
+${SPACING} and ${SPACING}
+$BNOBR\{student "[1-(-3)]i + [2-sqrt(4)]j + (6/2)k"\}$ENOBR
+$ECENTER
+$PAR
+both represent the vector \(\{Vector(4,0,3)\}\), while
+$BNOBR\{student "${LANGLE}1,0,-1${RANGLE} + ${LANGLE}2,-2,3${RANGLE}"\}$ENOBR
+could be used to answer a question that asks for the vector \(\{Vector(3,-2,2)\}\).
+$PAR
+
+$BBLOCKQUOTE
+Write \(\{$v0+$v1\}\) as a sum of two vectors: \{ans_rule(30)\}.
+$EBLOCKQUOTE
+
+END_TEXT
+Context()->normalStrings;
+
+#
+# Check that the result actually IS a sum (or difference).
+#
+sub checkAdd {
+ my $ans = shift;
+ if ($ans->{score} == 1 && !$ans->{isPreview}) {
+ my $item = $ans->{student_formula}->{tree};
+ $ans->{correct_value}->cmp_Error
+ ($ans,"Your answer is not a sum of vectors")
+ unless $item->class eq 'BOP' &&
+ ($item->{bop} eq '+' || $item->{bop} eq '-');
+ }
+ return $ans;
+}
+
+my $check = ($v0+$v1)->cmp;
+$check->install_post_filter(~~&checkAdd);
+ANS($check);
+
+##################################################
+
+ENDDOCUMENT(); # This should be the last executable line in the problem.
--- /dev/null
+++ courses.dist/modelCourse/templates/setOrientation/prob13.pg
@@ -0,0 +1,68 @@
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+ "PGstandard.pl",
+ "PGchoicemacros.pl",
+ "PGunion.pl",
+ "parserOrientation.pl",
+ "choiceUtils.pl",
+ "PGcourse.pl",
+);
+
+TEXT(beginproblem);
+
+Title("Matching Lists in $WW");
+
+##############################################
+
+$a = random(-10,10,1);
+$b = random(1,3,1);
+
+$ml = new_match_list();
+$ml->rf_print_q(~~&alt_print_q);
+$ml->rf_print_a(~~&alt_print_a);
+$ml->{separation} = 5;
+
+$ml->qa(
+ "\(x\) is less than \($a\)", "\(x $LT $a\)",
+ "\(x\) is any real number", "\(-\infty $LT x $LT \infty\)",
+ "\(x\) is greater than \($a\)", "\($a $LT x\)",
+ "\(x\) is less than or equal to \($a\)", "\(x $LE $a\)",
+ "\(x\) is greater than or equal to \($a\)", "\(x $GE $a\)",
+ "The distance from \(x\) to \($a\) is at most $b",
+ "\(|x - $a| $LE $b\)",
+ "The distance from \(x\) to \($a\) is more than $b",
+ "\(|x - $a| $GT $b\)"
+);
+
+$ml->choose(5);
+
+##################################################
+
+BEGIN_TEXT
+
+Match the statements defined below with the letters labeling their
+equivalent expressions.
+$PAR
+
+\{ColumnMatchTable($ml,indent => 30)\}
+$PAR
+
+END_TEXT
+
+ANS(str_cmp($ml->ra_correct_ans));
+install_problem_grader(~~&std_problem_grader);
+$showPartialCorrectAnswers = 0;
+
+BEGIN_TEXT
+
+Usually with matching problems like this,
+$WW only tells you whether ${BITALIC}all$EITALIC
+your answers are correct or not. If they are not all
+correct, $WW will not tell you which ones are right
+and which are wrong.
+$PAR
+
+END_TEXT
+
+ENDDOCUMENT(); # This should be the last executable line in the problem.
--- /dev/null
+++ courses.dist/modelCourse/templates/setOrientation/course_info.txt
@@ -0,0 +1,22 @@
+<FONT SIZE="+1"><B>You have logged into WeBWorK!</B></FONT>
+
+<p align="justify">
+
+If you haven't already done so, you should change your password to
+something other than your student ID. To do this, click on the
+Password/Email link in the list at the far left, and follow the
+directions on that page.
+
+<p align="justify">
+
+Once you have changed your password, click on the "Orientation" link
+in the white area at the left. This will take you to the the first
+homework assignment, which will help you to learn how to use WeBWorK
+effectively.
+
+<p align="justify">
+
+If you wish to get a printed copy of one of your assignments, you can
+do so from this page by pressing the "Download Hardcopy" button. You
+will be taken to a page where you can select what information to
+include in the set, and which set to download.
--- /dev/null
+++ courses.dist/modelCourse/templates/setOrientation/prob12.pg
@@ -0,0 +1,70 @@
+DOCUMENT(); # This should be the first executable line in the problem.
+
+loadMacros(
+ "PGstandard.pl",
+ "PGchoicemacros.pl",
+ "PGunion.pl",
+ "choiceUtils.pl",
+ "parserOrientation.pl",
+ "PGcourse.pl",
+);
+
+TEXT(beginproblem);
+
+Title("True/False Questions in $WW");
+
+##############################################
+
+$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);
+
+$sl = new_select_list();
+$sl->{rf_print_q} = ~~&alt_print_q;
+$sl->{separation} = 5;
+
+$sl->qa(
+ "\(-$a $LT -$b\)", "F",
+ "\($c $LE $c\)", "T",
+ "\($d $LT $d\)", "F",
+ "\(\pi $GE 3.2\)", "F",
+ "\($e-1 $LE $e\)", "T"
+);
+
+$sl->choose(4);
+
+##################################################
+
+BEGIN_TEXT
+
+Enter a \{student "T"\} or an \{student "F"\} in each
+answer space below to indicate whether the corresponding
+statement is true or false.
+$PAR
+
+$BBLOCKQUOTE
+\{$sl->print_q\}
+$EBLOCKQUOTE
+$PAR
+
+END_TEXT
+
+ANS(str_cmp($sl->ra_correct_ans));
+install_problem_grader(~~&std_problem_grader);
+$showPartialCorrectAnswers = 0;
+
+BEGIN_TEXT
+
+In most multipart problems, if one or more of your answers is wrong,
+then $WW tells you which ones they are. For True/False or
+multiple-choice questions, however, $WW usually only tells you whether
+${BITALIC}all$EITALIC the answers are correct. It won't tell you
+which ones are right or wrong.
+
+END_TEXT
+
+##################################################
+
+ENDDOCUMENT(); # This should be the last executable line in the problem.
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