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Classify & Capture: Using Venn Diagrams and Tangrams to Develop Abilities in Mathematical Reasoning and Proof

Patricia S. Moyer and Johnna J. Bolyard 

February 2003, Volume 8, Issue 6, Page 325

Abstract:
Article describes a game of classifying objects according to their attributes using a three-set Venn diagram, then analyzing the classification of the objects to determine their accuracy. Students attempt to capture opponents' game pieces (tangrams) by making mathematical arguments that identify misplaced pieces.

Keywords:
Article
Grades 6-8
Games / Puzzles
Teacher
Reasoning and Proof
Shapes