<introduction>
The <introduction> tag contains introductory material, usually brief and uncomplicated.
Divisions, exercise groups, and <task>-containing, highly-structured exercises and PROJECT-like
can all have introductions.
Syntax
Variants
There are 4 variants of <introduction>.
Attributes
| Attribute | Required? | Values |
|---|---|---|
component = "…" | optional | string |
label = "…" | optional | string |
xml:base = "…" | optional | string |
xml:id = "…" | optional | string |
xml:lang = "…" | optional | string |
Children
The following may appear as children:<activity> <algorithm> <aside> <assemblage> <assumption> <axiom> <biographical> <blockquote> <claim> <computation> <conjecture> <console> <convention> <corollary> <data> <definition> <example> <exercise> <exploration> <fact> <figure> <fragment> <heuristic> <historical> <hypothesis> <identity> <idx> <image> <insight> <investigation> <lemma> <list> <list-of> <listing> <note> <observation> <p> <poem> <pre> <principle> <problem> <program> <project> <proof> <proposition> <question> <remark> <sage> <sbsgroup> <sidebyside> <table> <tabular> <technology> <theorem> <title> <video> <warning> Parents
This element may appear as an immediate child of the following elements:<appendix> <article> <chapter> <exercises> <reading-questions> <references> <section> <solutions> <subexercises> <subsection> Attributes
This tag has no attributes.Children
The following may appear as children:<aside> <biographical> <blockquote> <console> <figure> <historical> <image> <list> <listing> <p> <pre> <program> <sage> <sbsgroup> <sidebyside> <table> <tabular> <video> Parents
This element may appear as an immediate child of the following elements:<activity> <example> <exercise> <exploration> <investigation> <problem> <project> <question> <task> Attributes
This tag has no attributes.Children
The following may appear as children:<aside> <biographical> <blockquote> <console> <historical> <image> <p> <pre> <program> <sbsgroup> <sidebyside> <tabular> <video> Parents
This element may appear as an immediate child of the following elements:<exercisegroup> Attributes
This tag has no attributes.Children
The following may appear as children:<blockquote> <console> <image> <p> <pre> <program> <tabular> <video> Parents
This element may appear as an immediate child of the following elements:<activity> <exercise> <exploration> <investigation> <list> <objectives> <outcomes> <project> <task> <webwork> Examples
An introduction as part of a <project>
<introduction>
<p>
Let <m>f(x)=3x^5-7x+5</m> and <m>g(x)=x^2</m>.
</p>
</introduction>
<task>
<statement>
<p>
Calculate <m>f(g(x))</m>.
</p>
</statement>
</task>
<task>
<statement>
<p>
Calculate <m>g(f(x))</m>.
</p>
</statement>
</task>
<task>
<statement>
<p>
What can you say about composition and commutativity?
</p>
</statement>
<hint>
<p>
One counterexample demonstrates that a statement is not <em>always</em> true;
one example does <em>not</em> demonstrate that a statement is always true.
</p>
</hint>
</task>An introduction as part of an <exercisegroup>
<introduction>
<p>
Take the derivative of each of the following functions.
</p>
</introduction>
<exercise>
<statement>
<p>
<m>e^x+4</m>
</p>
</statement>
</exercise>
<exercise>
<statement>
<p>
<m>x^2-5x</m>
</p>
</statement>
<answer>
<p>
<m>2x-5</m>
</p>
</answer>
</exercise>
<exercise>
<p>
<m>\sin(x)+\ln(x)</m>
</p>
</exercise>An introduction to a <section>
<introduction>
<p>
Something fairly short that introduces or gives an overview of what's coming up.
</p>
</introduction>
<subsection>
<p>
Material not in an introduction can be much longer and more involved. There can't be any
<q>unincorporated territory</q> in a structured division, that is, if a section contains
subsections, all material must be in a subsection or peer division or an introduction
or a conclusion.
</p>
</subsection>