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Chepina Rumsey and Cynthia W. Langrall

These evidence-based instructional strategies can lead to deeper mathematical conversations in upper elementary school classrooms.

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Chepina Rumsey, Jody Guarino, Jennie Beltramini, Shelbi Cole, Alicia Farmer, Kristin Gray, and Morgan Saxby

Read about how the authors used many technological tools and platforms to engage a team of educators across the country in this collaborative project.

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Chepina Rumsey, Jody Guarino, Rachael Gildea, Christina Y. Cho, and Bethany Lockhart

A yearlong professional development project investigated types of discourse and argumentation that students engage in, participation structures and routines that teachers can include to support students, and types of tasks that promote mathematical argumentation.