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A cartoon exploring a problem about football is coupled with a full-page activity sheet.

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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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Joel Amidon and Matt Roscoe

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

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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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Math for Real: How Much Time Will Lena Save?

“when will I ever use this?”

Dan Miltner

This problem ties in the Pythagorean theorem while two people walk around or across a park.

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Alessandra King

Students are called to engage their creativity and problem-solving skills by designing their own puzzles. They share them with their classmates and produce an anthology that will be a keepsake of their mathematical year as well as a memento of their collective accomplishment.

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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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Joe Champion and Ann Wheeler

A classic manipulative, used since the 1960s, continues to offer opportunities for intriguing problem solving involving proportions.

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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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Janet B. Andreasen and Erhan S. Haciomeroglu

Dynamic software is used to teach geometry, tying into the Common Core's Standard 5, “Use appropriate tools strategically.”