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Amanda K. Riske, Catherine E. Cullicott, Amanda Mohammad Mirzaei, Amanda Jansen, and James Middleton

We introduce the Into Math Graph tool, which students use to graph how “into" mathematics they are over time. Using this tool can help teachers foster conversations with students and design experiences that focus on engagement from the student’s perspective.

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A set of problems of many types.

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Readers comment on published articles or offer their own ideas.

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A set of problems of many types.

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Shawn Triplett

Diagonalization of the Fibonacci matrix ties the sequence to geometry.

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James Metz

Students analyze a photograph to solve mathematical questions related to the images captured in the photograph. This month, photographs of ceiling trusses provide a setting for a geometry discussion.

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Carole E. Greenes, Mary C. Cavanagh, Jenny K. Tsankova, and Florence A. Glanfield

Students stroll through distance, rate, and time experiments on the road to strengthening their understanding of proportionality.

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Günhan Caglayan

Students analyze a photograph to solve mathematical questions related to the images captured in the photograph. This month, photographs of ancient arches lead to a discussion of inscribed polygons.

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Mara G. Landers

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

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Emily Sliman

Chalk Talk and Claim-Support-Question are two routines for developing students' ability to use multiple representations and encouraging classroom discussion.