Use this link to find the purpose of this lesson, instructions for setting up your server, a warning about Sketchpad, and acknowledgements.

Important Notes and Cautions

The links indicated by the word "sketch" require the Geometer's Sketchpad. When you click on the sketches a lesson will download. Warning: to use these lessons, you must configure the Geometer's Sketchpad as a helper application for your Web browser. See the instructions on configuration and retrieving a demo version of Sketchpad. Those who don't have Sketchpad or simply want a visual reminder of the lessons should select the links indicated by the word "picture."

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