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Explore, Conjecture, Connect, Prove: The Versatility of a Rich Geometry Problem

Robert Quinn, Tom Ball 

August 2007, Volume 101, Issue 1, Page 8

Abstract:
A rich geometry problem and discussion of its solution. Preservice teachers are challenged to prove their conjecture in a  variety of mathematically correct justifications. The authors demonstrate that mathematical rigor is possible at a variety of student ability levels.

Keywords:
Article
Conceptual Development
Teacher in Training / Preservice Teacher
Grades 9-12
Geometry & Measurement
Reasoning and Proof
Theory