When calculating the area of a trapezoid, students use a range of problem-solving strategies and measurement concepts.
Agida G. Manizade and Marguerite M. Mason
Tutita M. Casa
This instructional tool helps students engage in discussions that foster student reasoning, then settle on correct mathematics.
research matters for teachers
Kristen N. Bieda and Jerilynn Lepak
Research explores how to help students build from, instead of building with, examples when justifying mathematical ideas.