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Odd Shape Out

big solutions to little problems

Jo Ann Cady and Pamela Wells

Solutions to a previous Solve It problem are discussed, and the procedures used with problem solving are explored.

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A set of problems of many types.

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Joel Amidon and Matt Roscoe

A monthly set of problems is aimed at a variety of ability levels.

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John Donovan, Gregory D. Foley and Thomas R. Butts

Students analyze items from the media to answer mathematical questions related to the article. This month's clips examine why raindrops do not crush mosquitoes and feature an application of the Pythagorean theorem to baseball. The mathematics involved includes dimensional analysis, ratio and proportion, and the Pythagorean theorem.

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Joel Amidon and Matt Roscoe

A monthly set of problems is aimed at a variety of ability levels.

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Readers comment on published articles or offer their own ideas.

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Cathery Yeh

Postscript items are designed as rich “grab-and-go” resources that any teacher could quickly incorporate into his or her classroom repertoire with little effort and maximum impact. The current article shares ideas for using Pattern Blocks to increase students' creativity and problem solving skills while extending their understanding of geometric reasoning and number sense.

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Claudia R. Burgess

This geometry lesson uses the work of abstract artist Wassily Kandinsky as a springboard and is intended to promote the conceptual understanding of mathematics through problem solving, group cooperation, mathematical negotiations, and dialogue.

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A cartoon that explores 360 degrees and the directions of clockwise and counterclockwise is coupled with a full-page activity sheet.

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Jordan T. Hede and Jonathan D. Bostic

See how sixth-grade students design and create quilt squares for this geometry project.