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Wendy B. Sanchez and David M. Glassmeyer

In this 3-part activity, students use paper-folding and an interactive computer sketch to develop the equation of a parabola given the focus and directrix.

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Maria L. Hernández, Rachel Levy, Mathew D. Felton-Koestler and Rose Mary Zbiek

Ideas from the GAIMME report illustrate how teachers can engage students in the modeling process.

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Diana Cheng and David Thompson

Labyrinths inspire questions about measuring path lengths and representing patterns.

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Margaret Cibes and James Greenwood

Short items from the media focus mathematics appropriate for classroom study.

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Christopher E. Smith and Jana N. Paré

Mathematics and art share perspective and prominence in this collaborative learning experience.

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Devon Gunter

A hands-on approach to studying quadratic functions emphasizes the engineering design process.

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Allyson Hallman-Thrasher, Erin T. Litchfield and Kevin E. Dael

Frozen custard recipes are the starting point for students to derive and explain a method for multiplying matrices.

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Zach Hurdle, Max Warshauer and Alex White

The union of curriculum goals intersects with math education standards.

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Larry Lesser

Short items from the media focus mathematics appropriate for classroom study.

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Alexis Stevens and John Stevens

The often misunderstood Electoral College is based on the simple, yet powerful, mathematical idea of proportional reasoning.