Sketchpad. Through explorations of topics ranging from triangles and circles to transformational, taxicab, and hyperbolic geometries, students hone their understanding of geometry and their ability to write rigorous mathematical proofs. It is an ideal text for students planning to teach at the middle or secondary level. Each chapter follows the same format to best promote active learning: - Activities open each chapter allowing students the opportunity to explore topics and make conjectures using Sketchpad - Discussions cover important theorems and concepts that solidify the conjectures made in the activities - Exercises reinforce the discussions and advance student expertise with Sketchpad - Each new copy of the book is packaged with a valuable CD-ROM with Sketchpad documents that relate directly to the material in the text - These multi-page documents provide a starting point for every activity and provide dynamic interactive versions of all the figures in the text.

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