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G. Patrick Vennebush and Diana Mata

Students analyze items from the media to answer mathematical questions related to the article. This month's clips discuss misrepresented formulas.

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Daniel R. Ilaria

Students generally first encounter piecewise–defined functions in the form of a step function (perhaps the postage stamp function) in an algebra class. Piecewise–defined functions do not play a central role in mathematics before calculus although they can serve as challenging examples in the precalculus curriculum. Before the advent of the TI–Nspire, entering piecewise–defined functions on the calculator was time consuming and not particularly user friendly. That has changed.

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Hearts are the theme of a collection of problems and solutions.

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Lisa Berger

An analysis of problems from state assessments and other sources helps preservice teachers discover analogous mathematical representations.

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Mara G. Landers

A measurement-based activity can help students struggling to understand trigonometric functions.

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Jeremy F. Strayer, James B. Hart, and Sarah K. Bleiler-Baxter

A four-phase process and three principles for building a mathematics learning community use rich discussion of student work.

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Ellipses are the focus of photographs and mathematical equations.

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A set of problems of many types.

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Meghan Riling and Leslie Dietiker

Although new teachers are often prepared to teach using reform practices, they may be given traditional curriculum materials. Learn how these traditional materials can be adapted to reflect reform practices and teaching goals.

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Melissa Geist, Holly Anthony, and Twanelle Majors

Such applications can make mathematics content relevant to students.