PreTeXt Sample Book: Abstract Algebra (SAMPLE ONLY)

<worksheet groupwork="yes" groupsize="2" label="worksheet-groupwork">
  <title>A
  <q>Group Work</q>
  Worksheet</title>
  <p>
    This is a <tag>worksheet</tag> which has a <attr>groupwork</attr> attribute set to <c>yes</c>,
    along with a <attr>label</attr> attribute to assist with the Runestone database.
    Note, you can also set a <attr>groupsize</attr> attribute.
    When hosted on Runestone,
    the exercises within will be available for a group of students to submit together.
  </p>
  <exercise label="groupwork-multiple-choice">
    <title>Multiple-Choice, Group Work</title>
    <idx>stop signs</idx>
    <idx>group work</idx>
    <statement>
      <p>
        What color is a stop sign?
      </p>
    </statement>
    <choices>
    <choice>
    <statement>
      <p>
        Green
      </p>
    </statement>
    <feedback>
      <p>
        Green means
        <q>go!</q>.
      </p>
    </feedback>
    </choice>
    <choice correct="yes">
    <statement>
      <p>
        Red
      </p>
    </statement>
    <feedback>
      <p>
        Red is universally used for prohibited activities or serious warnings.
      </p>
    </feedback>
    </choice>
    <choice>
    <statement>
      <p>
        White
      </p>
    </statement>
    <feedback>
      <p>
        White might be hard to see.
      </p>
    </feedback>
    </choice>
    </choices>
    <hint>
      <p>
        What did you see last time you went driving?
      </p>
    </hint>
    <hint>
      <p>
        Maybe go out for a drive?
      </p>
    </hint>
  </exercise>
  <p>
    Worksheets allow for material interleaved with the <tag>exercise</tag> throughout.
  </p>
  <exercise label="groupwork-number-theory" adaptive="yes" language="natural">
    <title>Parsons Problem, Group Work</title>
    <idx>even numbers</idx>
    <idx>groupwork</idx>
    <statement>
      <p>
        Create a proof of the theorem: If <m>n</m> is an even number,
        then <m>n\equiv 0\mod 2</m>.
      </p>
    </statement>
    <blocks>
    <block order="2">
    <p>
      Suppose <m>n</m> is even.
    </p>
    </block>
    <block order="3">
    <choice>
    <p>
      Then <m>n</m> is a prime number.
    </p>
    </choice>
    <choice correct="yes">
    <p>
      Then there exists an <m>m</m> so that <m>n = 2m</m>.
    </p>
    </choice>
    <choice>
    <p>
      Then there exists an <m>m</m> so that <m>n = 2m + 1</m>.
    </p>
    </choice>
    </block>
    <block order="1" correct="no">
    <p>
      Click the heels of your ruby slippers together three times.
    </p>
    </block>
    <block order="5">
    <p>
      So <m>n = 2m + 0</m>.
    </p>
    <p>
      This is a superfluous second paragraph in this block.
    </p>
    </block>
    <block order="4">
    <p>
      Thus <m>n\equiv 0\mod 2</m>.
    </p>
    </block>
    <block order="6" correct="no">
    <p>
      And a little bit of irrelevant multi-line math
      <md>
        <mrow>c^2&amp;a^2+b^2</mrow>
        <mrow>&amp;x^2+y^2</mrow>
      </md>.
    </p>
    </block>
    </blocks>
    <hint>
      <p>
        Dorothy will not be much help with this proof.
      </p>
    </hint>
  </exercise>
</worksheet>