Author Michael Battista has built what he calls the Shape Makers computer microworld, a series of explorations in which students develop dynamic mental models for thinking about geometric shapes and their properties. He introduces this curriculum with a compelling, research-based discussion of how students learn—and how Sketchpad helps you enhance that learning process.

Designed to replace or supplement the standard textbook treatment of geometry in middle school, Shape Makers can also be used to replace early portions of the high school curriculum. Included are blackline activity masters, a cross-platform CD-ROM of Shape Makers sketches, and thorough and thoughtful teacher's notes that prepare you for each exploration and offer suggestions for homework, extensions, and assessment.