Difference between revisions of "AlignedChoice"

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  +
{{historical}}
  +
  +
<p style="font-size: 120%;font-weight:bold">This style is outdated and recommended to use PGML now.</p>
 
<h2>Aligned Answer Blanks</h2>
  
<h2>Aligned Answer Blanks</h2>
   
Line 48: Line 51:
 
Context("Numeric");
  
Context("Numeric");
   
−
$f1 = Formula("sin(pi/6)");
 +
$f1 = Formula("sin(pi/4)");
−
$f2 = Formula("sin(pi/4)");
 +
$f2 = Formula("sin(pi)");
−
$f3 = Formula("sin(pi/3)");
  
−
$f4 = Formula("sin(pi/2)");
  
−
$f5 = Formula("sin(pi)");
  
−
$f6 = Formula("sin(2pi)");
  
−  
−
Parser::Context::Functions::Disable('All');
  
−
Parser::Context::Functions::Enable('sqrt');
  
   
  +
Context()->functions->disable("All");
  +
Context()->functions->enable("sqrt");
   
 
Context()->texStrings;
  
Context()->texStrings;
 
$al = new_aligned_list(ans_rule_len=>10, numbered=>1, tex_spacing=>"3pt");
  
$al = new_aligned_list(ans_rule_len=>10, numbered=>1, tex_spacing=>"3pt");
 
$al->qa(
  
$al->qa(
−
"\($f1\)", Real($f1->eval)->cmp,
 +
"\($f1\)", Real($f1->eval)->cmp(),
−
"\($f2\)", Real($f2->eval)->cmp,
 +
"\($f2\)", Real($f2->eval)->cmp(),
−
"\($f3\)", Real($f3->eval)->cmp,
  
−
"\($f4\)", Real($f4->eval)->cmp,
  
−
"\($f5\)", Real($f5->eval)->cmp,
  
−
"\($f6\)", Real($f6->eval)->cmp,
  
 
);
  
);
 
Context()->normalStrings;
  
Context()->normalStrings;
Line 64: Line 69:
 
<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>
Line 98: Line 103:
 
<p>
  
<p>
 
<b>Main Text:</b>
  
<b>Main Text:</b>
−
It's a good idea to explain to students that the type of answers allowed are restricted.
 +
It's a good idea to explain to students that certain types of answers are not allowed.
 
</p>
  
</p>
 
</td>
  
</td>

Latest revision as of 08:06, 28 June 2023

This article has been retained as a historical document. It is not up-to-date and the formatting may be lacking. Use the information herein with caution.

This style is outdated and recommended to use PGML now.

Aligned Answer Blanks


This PG code shows how to align answer blanks and restrict the type of student answer allowed.

Problem Techniques Index

PG problem file Explanation 
DOCUMENT();
loadMacros(
"PGstandard.pl",
"PGunion.pl",
"MathObjects.pl",
"alignedChoice.pl",
);
TEXT(beginproblem());

Initialization: We need to include the macro file alignedChoice.pl for aligning the answer blanks. 

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.

  • valign=>"MIDDLE" or TOP or BOTTOM
  • align=>"RIGHT" or LEFT or CENTER
  • spacing=>"5"
  • tex_spacing=>"0pt", where 1pt = 1/72in. 3pt is usually good.
  • numbered=>"0" for no numbering, or 1 for numbering
  • equals=>"1" for a column of equals signs, 0 to omit them
  • ans_rule_len=>"10"

 
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.

Problem Techniques Index

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