National Council of Teachers of Mathematics 2013 Annual Meeting and Exposition

Please note: The NCTM conference program is subject to change.

404- Conjectures and Quadrilaterals: Proof versus Convince Me

Friday, April 19, 2013: 9:45 AM-11:00 AM
403/404 (Convention Center)
Lead Speaker:
Ray Klein


In most geometry classes, students are asked to prove statements about quadrilaterals. Shouldn’t a first step be for them to discover the properties of these figures? Before we ask the “p question” (prove to me), shouldn’t we first ask the “c question” (convince me)? Come see how this can be accomplished with dynamic geometry on a calculator.

Presentation Format: 9-12 Gallery Workshop
Grade Band Audience: 9 to 12

See more of: 9-12 Gallery Workshop
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