MultipleChoicePopup2

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Multiple Choice Question with a Popup Menu

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This PG code shows how to write a multiple choice question in which all of the options are displayed to the student and the student can only choose one correct answer (it uses radio buttons).

• File location in OPL: FortLewis/Authoring/Templates/Misc/MultipleChoicePopup2.pg
• PGML location in OPL: FortLewis/Authoring/Templates/Misc/MultipleChoicePopup2_PGML.pg

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PG problem file	Explanation
Problem tagging data	Problem tagging:
DOCUMENT(); loadMacros( "PGstandard.pl", "MathObjects.pl", "parserPopUp.pl", ); TEXT(beginproblem());	Initialization: We need parserPopUp.pl
Context("Numeric"); $popup = PopUp( ["?","Red","Blue","Green"], "Blue", );	Setup: To create a radio object, use $popup = PopUp([choices,...],correct); For details, see parserPopUp.pl The context is not really necessary, but multiple choice questions are often follow-up questions, so we leave it in.
Context()->texStrings; BEGIN_TEXT Is my favorite color red, blue, or green? \{ $popup->menu() \} END_TEXT Context()->normalStrings;	Main Text: Since popup menus hide their choices, we write the entire list of choices into the question. It is essential to do this, otherwise a student who is working from a PDF copy of their homework won't know what the options are and won't be able to answer the question.
install_problem_grader(~~&std_problem_grader); $showPartialCorrectAnswers = 0; ANS( $popup->cmp() );	Answer Evaluation: We withhold feedback by choosing not to show partially correct answers. We use the standard problem grader, which gives full credit or no credit. For other graders, see weighted graders
Context()->texStrings; BEGIN_SOLUTION ${PAR}SOLUTION:$PAR The correct answer is \{ $popup->correct_ans() \} END_SOLUTION Context()->normalStrings; COMMENT('MathObject version.'); ENDDOCUMENT();	Solution:

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