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Using Disks as Models for Proofs of Series

Tongta Somchaipeng, Tussatrin Kruatong, and Bhinyo Panijpan 

August 2012, Volume 106, Issue 1, Page 46

Abstract:
Students use balls and disks to prove the general formulas for sums of squares and cubes.

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Using Disks as Models: Two activity sheets (PDF)

Keywords:
Grade 8
Article
3-D Shapes
Area
Grades 9-12
Differentiated Instruction
Teacher
Geometric Patterns
Manipulatives
Sequences / Series
Shapes
Volume