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  • Author or Editor: Katrina Piatek-Jimenez x
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Katrina Piatek-Jimenez

A hands-on activity that uses straws and pipe cleaners to explore and justify the triangle congruence conditions. The author uses the activities to explain when and why an idea is a postulate, theorem, accepted without need for proof, which ones need proof.

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Katrina Piatek-Jimenez, Tibor Marcinek, Christine M. Phelps and Ana Dias

How teaching for QL differs from teaching a traditional mathematics course and where to find good QL problems.