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Set <code>$isInstructor = 0;</code> when the problem is available to students, or set to 1 when debugging. | Set <code>$isInstructor = 0;</code> when the problem is available to students, or set to 1 when debugging. | ||
Alternatively, we could set | Alternatively, we could set | ||
< | <pre> | ||
$isInstructor = ($envir{effectivePermissionLevel} >= | |||
$envir{ALWAYS_SHOW_SOLUTION_PERMISSION_LEVEL}); | |||
</pre> | |||
to ensure that only users that always have permission to show correct answers can open all of the sections of the scaffolding without needing to enter correct answers. | |||
</p> | </p> | ||
</td> | </td> | ||
Revision as of 19:02, 29 June 2014
Sequentially Revealed (Scaffolded) Problems
This PG code shows how to create multi-part questions that hide from students parts that have not yet been answered correct.
- File location in OPL: FortLewis/Authoring/Templates/Misc/Scaffolding1.pg
| PG problem file | Explanation |
|---|---|
|
Problem tagging: |
|
DOCUMENT();
loadMacros(
"PGstandard.pl",
"MathObjects.pl",
"compoundProblem5.pl",
"PGcourse.pl",
);
TEXT(beginproblem());
$showPartialCorrectAnswers = 1;
$scaffold = Scaffold();
INITIALIZE_SCAFFOLD('$scaffold');
$isInstructor = 0; # = 0 when students use it
TEXT(MODES(
HTML=>'Clicking on a section opens it
provided that you have answered previous sections correctly.',
TeX=>''));
|
Initialization:
We initialize the scaffolding with the name $isInstructor = ($envir{effectivePermissionLevel} >=
$envir{ALWAYS_SHOW_SOLUTION_PERMISSION_LEVEL});
to ensure that only users that always have permission to show correct answers can open all of the sections of the scaffolding without needing to enter correct answers. |
Context("Numeric");
$answer = Compute("1");
|
Setup: |
Context()->texStrings;
BEGIN_TEXT
Question text
$BR
$BR
Answer =
\{ ans_rule(20) \}
\{ AnswerFormatHelp("formulas") \}
END_TEXT
Context()->normalStrings;
|
Main Text: |
$showPartialCorrectAnswers = 1; ANS( $answer->cmp() ); |
Answer Evaluation: |
Context()->texStrings;
BEGIN_SOLUTION
${PAR}SOLUTION:${PAR}
Solution explanation goes here.
END_SOLUTION
Context()->normalStrings;
COMMENT('MathObject version.');
ENDDOCUMENT();
|
Solution: |