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March 2010, Volume 16, Issue 7

FEATURES

Trailblazers
Lyn D. English, Steve Humble, and Victoria E. Barnes
You, too, can design and implement math trails to promote active, meaningful, real-world mathematical learning beyond your classroom walls.

Identifying logical necessity
David Yopp
As the ability to reason receives increasing attention across all grade levels, this author learns that furnishing preservice teachers with opportunities to evaluate mathematical arguments will help them recognize valid proofs in their own classrooms.

Paint bucket polygons
Michael Edwards, Suzanne Harper

Use photo editing software as a teaching tool to bring inaccessible polygon definitions within reach of your students’ understanding.

more4u-TCM-100x23 Podcast from NCTM's 2010 Annual Meeting in San Diego, California
Paint Bucket Polygons: Geometry Concepts in High Definition
Presenters: Suzanne Harper, Michael Todd Edwards