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Matt B. Roscoe

Symmetric dot patterns are a particularly powerful object for investigation, providing opportunities for foundational learning across PK–5. We found that second-grade students naturally used repeated addends to count symmetric dot patterns created using the new software TileFarm.

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Matt B. Roscoe

Top-selling cars in America can be the catalyst that drives an analysis of data.

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Matt B. Roscoe

Scaled-up versions of a triangle lead to uncommon proofs of the Pythagorean theorem and rich mathematical connections.

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Matt B. Roscoe

Having prospective teachers find the inscribed angle theorem for themselves can foster mathematical reasoning.

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Matt B. Roscoe and Joe Zephyrs

Pull on the threads of congruence and similarity in a series of lessons that explores transformational geometry.

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Megan H. Wickstrom and Matt B. Roscoe

During a middle school task, students compare the sizes of Lake Tahoe and Flathead Lake.

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Steve Pelikan

Edited by Matt B. Roscoe

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

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Matt B. Roscoe and Stephan Pelikan

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

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Matt B. Roscoe and Stephan Pelikan

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

Restricted access

Matt B. Roscoe and Stephan Pelikan

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