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Website
Other

Perl Foundation: perl.com

For Students 9th - 10th
This site includes resources on downloading and installing Perl, a six-part tutorial on learning Perl, articles, and weblogs to help new and experienced programmers refine their skills.
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Activity
University of Michigan

University of Michigan: The Perl Programming Language

For Students 9th - 10th
A description of the Perl programming language, including history and sample programs.
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Handout
Wikimedia

Wikipedia: Perl Programming Language

For Students 9th - 10th
A Wikipedia description of the Perl programming language.