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Steven Greenstein and Justin Seventko

Students' novel strategies are a valuable resource for mathematical sense making in the classroom. Deliberate exploration of different strategies can support and extend students' mathematical understandings. Postscript items are designed as rich grab-and-go resources that any teacher can quickly incorporate into his or her classroom repertoire with little effort and maximum impact.

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Steven Greenstein, Eliza Leszczynski, and Eileen Fernández

Describes an approach using 3D printing technologies to produce a new physical tool for mathematical learning called Thirty6.