The book conveys a distinctive approach, stimulating readers to develop a broader, deeper understanding of mathematics through active participation -- including discovery, discussion, and writing about fundamental ideas. It provides a series of interesting, challenging problems, then encourages readers to gather their reasonings and understandings of each problem.

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Key Benefit: In Experiencing Geometry on Plane and Sphere, Henderson invites readers to explore the basic ideas of geometry beyond the formulation of proofs. Key Topics: The text conveys a distinctive approach, stimulating readers to develop a broader, deeper understanding of mathematics through active participation—including discovering, discussing and writing about fundamental ideas. It provides a series of interesting, challenging problems, then encourages readers to gather their reasonings and understandings of each problem and discuss their findings in an open forum.

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