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Ron Lancaster

Since its inception, the Mathematical Lens column has provided teachers with resources to use with their students to make connections between mathematics and the world around us through the use of photographs. The editors and the dozens of teachers who submitted material for columns have taken all of us on a journey around the world to discover where mathematics lives. These columns have offered teachers a license to do mathematics everywhere and to travel far with their students with a full tank of resources.

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Stephen Phelps

Edited by Anna F. DeJarnette

A monthly set of problems targets a variety of ability levels.

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Sarah Ferguson

Explore the creation of a unique problem-based learning (PBL) experience.

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Stephen Phelps

Edited by Anna F. DeJarnette

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

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Isaac Frank

A critique of FOIL provides an alternate method of multiplying polynomials.

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Jerilynn Lepak and Taren Going

In an eighth-grade classroom, the authors used the Connected Math Project curriculum and three essential components of an argument implied by Driscoll (1999) to adapt mathematical tasks to elicit written arguments that go beyond recounting steps.

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Brandy Crowley and Tracy Harper

What is the most exciting day of the school year? Field trip day! Organizing a smooth field trip requires mathematical thinking. After solving these problems, have students create math questions about their own field-trip experiences.