Difference between revisions of "DisableFunctions1"
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m (Changed incorrect "are not" to "are" in the sentence "This means that students are allowed to type in fractions...") |
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<b>Setup:</b> |
<b>Setup:</b> |
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| − | We choose a context that requires fractions as answers and does not allow decimals. After constructing the formulas involving trig functions, we disable all functions and re-enable the <code>sqrt()</code> function. This means that students are |
+ | We choose a context that requires fractions as answers and does not allow decimals. After constructing the formulas involving trig functions, we disable all functions and re-enable the <code>sqrt()</code> function. This means that students are allowed to type in fractions and square roots, but not much else (e.g., they'll get an error message if they type in a trig function). |
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Revision as of 14:27, 23 May 2011
Disabling Functions so Students Must Simplify Answers
This PG code shows how to disable all functions and restrict student answers to fractions.
- Download file: File:DisableFunctions1.txt (change the file extension from txt to pg when you save it)
- File location in NPL:
FortLewis/Authoring/Templates/Trig/DisableFunctions1.pg
| PG problem file | Explanation |
|---|---|
|
Problem tagging: |
|
DOCUMENT(); loadMacros( "PGstandard.pl", "MathObjects.pl", "AnswerFormatHelp.pl", "contextFraction.pl", ); TEXT(beginproblem()); |
Initialization: |
Context("Fraction-NoDecimals");
$f1 = Formula("cos(pi)");
$f2 = Formula("sin(pi/3)");
Context()->functions->disable("All");
Context()->functions->enable("sqrt");
$answer1 = Compute("-1");
$answer2 = Compute("sqrt(3)/2");
|
Setup:
We choose a context that requires fractions as answers and does not allow decimals. After constructing the formulas involving trig functions, we disable all functions and re-enable the |
Context()->texStrings;
BEGIN_TEXT
Enter your answers as simplified fractions.
$BR
$BR
\( $f1 = \)
\{ ans_rule(20) \}
\{ AnswerFormatHelp("fractions") \}
$BR
$BR
\( $f2 = \)
\{ ans_rule(20) \}
\{ AnswerFormatHelp("fractions") \}
END_TEXT
Context()->normalStrings;
|
Main Text: |
$showPartialCorrectAnswers = 1; ANS( $answer1->cmp() ); ANS( $answer2->cmp() ); |
Answer Evaluation: |
Context()->texStrings;
BEGIN_SOLUTION
${PAR}SOLUTION:${PAR}
Solution explanation goes here.
END_SOLUTION
Context()->normalStrings;
COMMENT('MathObject version.');
ENDDOCUMENT();
|
Solution: |
