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Explorations with a Functioning Flex-O-Gram

Ellen Hines and Jesse Bridges 

February 2003, Volume 8, Issue 6, Page 294

Abstract:
Article describes a processes to expand thinking about the formula for the area of a parallelogram by observing patterns in the operation of a flexible parallelogram.

Keywords:
Article
Conceptual Development
Grades 6-8
Teacher
Reasoning and Proof