Multiple Choice with Checkbox

Multiple choice template

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Complete Code

Download file: MultipleChoiceCheckbox.pg

POD for Macro Files

See Also

PG problem file

Explanation

DOCUMENT();

loadMacros('PGstandard.pl', 'PGML.pl', 'parserCheckboxList.pl', 'PGcourse.pl');

Preamble

Include parserCheckboxList.pl in the loadMacros.

$checks1 = CheckboxList(
    [
        "\(e^{x^2} e^{1/x}\)",
        "\(e^{x^2} e^{x^{-1}}\)",
        "\(\displaystyle\frac{e^{x^2}}{e^x}\)",
        'None of the above'
    ],
    [ 0, 1 ]
);

$checks2 = CheckboxList(
    [
        [
            "\(e^{x^2} e^{1/x}\)",
            "\(e^{x^2} e^{x^{-1}}\)",
            "\(\displaystyle\frac{e^{x^2}}{e^x}\)"
        ],
        'None of the above'
    ],
    [ 0, 1 ]
);

# This makes the checkbox list horizontal.
$checks3 = CheckboxList(
    [
        "\(e^{x^2} e^{1/x}\)",
        "\(e^{x^2} e^{x^{-1}}\)",
        "\(\displaystyle\frac{e^{x^2}}{e^x}\)",
        'None of the above'
    ],
    [ 0, 1 ],
    separator => $SPACE x 10
);

Setup

To setup, CheckboxList creates a new object. The format is

 $checks = CheckboxList([choices, ...], [correct_choices, ...], options);

where the correct_choices can either match those in choices or be the indices (starting at 0).

If we nest choices in another arrayref, then the order of the choices will be randomized.

Using the option separator and setting to $SPACE x 10 results in a horizontal checklist. Note that $SPACE should be used and not   so that this works in both html and hardcopy.

See the POD for more options.

BEGIN_PGML
Select all expressions that are equivalent to  [`e^{x^2 + 1/x}`].
There may be more than one correct answer.

[_]{$checks1}

**Alternative with randomly ordered choices**

[_]{$checks2}

**Alternative shown with horizontal spacing**

[_]{$checks3}
END_PGML

Statement

This is the problem statement in PGML. 
BEGIN_PGML_SOLUTION
The correct answer to the first is [$checks1->correct_ans].

The correct answer to the second is [$checks2->correct_ans].

The correct answer to the third is [$checks3->correct_ans].
END_PGML_SOLUTION

ENDDOCUMENT();

Solution

The correct_ans method can be called to get the correct answer.