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Playing with Dominos: Proof by Induction

Gail Kaplan 

February 2009, Volume 102, Issue 6, Page 426

Abstract:
A hands-on approach to learning proofs by induction. Students create patterns of dominos so that when the first domino is pushed, the entire design collapses, one domino at a time. Students then build designs that do not work. By constructing a list of conditions that ensure a given pattern will collapse, students discover the basis for proofs by induction. A discovery worksheet leads students through mathematical examples.

Keywords:
Article
Activities
Calculus and Higher Level Mathematics
Grades 9-12
Teacher
Reasoning and Proof