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Product Information

Trigonometry proofs jump off the page with these magnetic manipulatives that help make abstract relationships concrete in students’ minds. The set contains four separate proofs of trigonometry relations, with examples of a Pythagorean identity, a sum formula, a double-angle formula, and two sum-to-product formulas. The demonstration of each relation is accomplished by physically rearranging the pieces to establish equalities of areas or lengths. The visual common-sense proofs are not rigorous mathematical proofs, so they challenge students without frustrating them. The color instructions describe how each proof is demonstrated, and four reproducible worksheets reinforce the material. Contains 20 magnetic foam pieces. Grades 7–12.

WARNING: Choking Hazard - Small parts. Not for children under 3 years.


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