Difference between revisions of "AlignedChoice"
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| Line 48: | Line 48: | ||
Context("Numeric"); |
Context("Numeric"); |
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| − | $f1 = Formula("sin(pi/ |
+ | $f1 = Formula("sin(pi/4)"); |
$f2 = Formula("sin(pi)"); |
$f2 = Formula("sin(pi)"); |
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| Line 66: | Line 66: | ||
<p> |
<p> |
||
<b>Setup:</b> |
<b>Setup:</b> |
||
| − | We disable all functions, and then enable square root. |
+ | We disable all functions, and then enable square root. The aligned list is an array of pairs of questions and answers (with answer evaluators). We can add as many question and answer pairs to the list as we like. |
</p> |
</p> |
||
<p> |
<p> |
||
| − | The options for aligned list are vertical alignment, horizontal alignment, cellspacing, tex spacing (which must include units of measure, such as "3pt"), whether or not the list is numbered, whether there is a column of equals signs, and the length of each answer rule. The defaults and other options are given below. |
+ | The options for aligned list are vertical alignment, horizontal alignment, cellspacing, tex spacing (which must include units of measure, such as "3pt"), whether or not the list is numbered, whether there is a column of equals signs, and the length of each answer rule. The defaults and other options are given below, and quotes are required around most of the options. |
<ul type="square"> |
<ul type="square"> |
||
<li><code>valign=>"MIDDLE"</code> or <code>TOP</code> or <code>BOTTOM</code></li> |
<li><code>valign=>"MIDDLE"</code> or <code>TOP</code> or <code>BOTTOM</code></li> |
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| Line 100: | Line 100: | ||
<p> |
<p> |
||
<b>Main Text:</b> |
<b>Main Text:</b> |
||
| − | It's a good idea to explain to students that |
+ | It's a good idea to explain to students that certain types of answers are not allowed. |
</p> |
</p> |
||
</td> |
</td> |
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Revision as of 16:00, 18 February 2010
Aligned Answer Blanks
This PG code shows how to align answer blanks and restrict the type of student answer allowed.
| PG problem file | Explanation |
|---|---|
DOCUMENT(); loadMacros( "PGstandard.pl", "PGunion.pl", "MathObjects.pl", "alignedChoice.pl", ); TEXT(beginproblem()); |
Initialization:
We need to include the macro file |
Context("Numeric");
$f1 = Formula("sin(pi/4)");
$f2 = Formula("sin(pi)");
Context()->functions->disable("All");
Context()->functions->enable("sqrt");
Context()->texStrings;
$al = new_aligned_list(ans_rule_len=>10, numbered=>1, tex_spacing=>"3pt");
$al->qa(
"\($f1\)", Real($f1->eval)->cmp(),
"\($f2\)", Real($f2->eval)->cmp(),
);
Context()->normalStrings;
|
Setup: We disable all functions, and then enable square root. The aligned list is an array of pairs of questions and answers (with answer evaluators). We can add as many question and answer pairs to the list as we like. The options for aligned list are vertical alignment, horizontal alignment, cellspacing, tex spacing (which must include units of measure, such as "3pt"), whether or not the list is numbered, whether there is a column of equals signs, and the length of each answer rule. The defaults and other options are given below, and quotes are required around most of the options.
|
BEGIN_TEXT
Find the sine of each of the following angles.
$PAR
\{ $al->print_q() \}
$PAR
Remark: Your answer cannot contain trigonometric functions.
It must be an arithmetic expression or number.
END_TEXT
|
Main Text: It's a good idea to explain to students that certain types of answers are not allowed. |
$showPartialCorrectAnswers = 1; ANS( $al->correct_ans ); ENDDOCUMENT(); |
Answer Evaluation: As expected. |
