AnswerHints
Answer Hints
This PG code shows how to include two different kinds of answer hints:
- General answer hints that help students get started on a problem and are made available after a student has submitted an answer at least once (a "Show hints" checkbox appears near the "Submit Answers" button).
- Specific, customized answer hints that appear in the answer feedback messages box after a student submits a particular answer that activates a pre-programmed hint.
You may also be interested in ErrorMessageCustomization
| PG problem file | Explanation |
|---|---|
DOCUMENT(); loadMacros( "PGstandard.pl", "MathObjects.pl", "answerHints.pl", ); TEXT(beginproblem()); |
Initialization:
We need to include the macros file |
Context("Numeric");
Context()->variables->are(t=>"Real",u=>"Real");
$f = Formula("2 t");
$answer = Formula("6 u");
|
Setup:
We restrict the variables to |
Context()->texStrings;
BEGIN_TEXT
If \( f(t) = $f \), then \( f(3u) \) = \{ ans_rule(10) \}
END_TEXT
Context()->normalStrings;
HINT(EV3(<<'END_HINT'));
${PAR}${BBOLD}Hint:${EBOLD}
Substitute \( 3u \) wherever you see \( t \) in the
formula for \( f \).
END_HINT
|
Main Text:
We include a general answer hint in the block of text between |
$showPartialCorrectAnswers = 1;
ANS($answer->cmp()
->withPostFilter(AnswerHints(
Formula("6 t") => "Are you using the correct variable?",
Formula("6 u") => "Good work!",
))
);
|
Answer Evaluation:
To generate specific, customized answer hints for particular answers, te use the |
- POD documentation: answerHints.pl
- PG macro code: answerHints.pl
