Brent Duckor, Carrie Holmberg, and Joanne Rossi Becker

A seventh-grade teacher finds that the notion of attention—to student and teacher thinking about student thinking—is key to orchestrating standards-based mathematical learning.

Davida Fischman and Kelli Wasserman

Analyzing a lesson about piano practice can reveal students’ misunderstandings, especially when aided by a team of teachers.

Amy L. Accardo and S. Jay Kuder

Multistep algebra problems and formative assessment are the focus of two middle level classrooms.

Jacqueline Coomes and Hyung Sook Lee

A formative assessment framework is interpreted in light of the gaps between student work and proficient uses of the mathematical practices.