For more information about chameleons, Descartes, negative numbers, or graphing points in the coordinate plane, check out Sam's links.

Java and Interactive Lessons

Slope and Graphing Equations

Words and Symbols

Algebra 1: Graphing Linear Equations, by Tim O'Brien

Use Java applets to learn about lines, graphing equations, and more. Also includes a crossword puzzle and interactive quizzes and tests.

Function and Algebra Concepts, from Project Interactivate, The Shodor Education Foundation

Java applets with directions and explanations, including Slope Slider, Graph Sketcher, Graphit, Linear Function Machine, and Positive Linear Function Machine.

Multimedia Activities: Lines/ Linear Equations, from ExploreMath.com

Shockwave activities: slope calculation, slope-intercept form, etc.

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Purplemath - Your Algebra Resource, by Elizabeth Stapel

Math "modules" introduce various topics, including Slope of a Straight Line, Graphing Linear Equations, Slope and Graphing, x- and y- Intercepts, and Straight-Line Equations.

Graph Intercepts, Graphing Slope-Intercept, Understanding Parallel and Perpendicular, and When is a Slope 0 or Undefined? from the Ask Dr. Math Archives

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Math Terms, from the Dr. Math FAQs

Why is the letter m used for slope in equations?

Mathematics Glossary - Middle Years, by Maxine Stinka, Saskatchewan Education Curriculum and Instruction

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