The Silicon Valley Mathematics Initiative is a comprehensive effort to improve mathematics instruction and student learning. The Initiative is based on high performance expectations, ongoing professional development, examining student work, and improved math instruction. Members receive access to a large library of resources, including performance assessments, curricula, and instructional tools.

The California Action Network for Mathematics Excellence and Equity (CANMEE) is a collaboration of the California Mathematics Project with state and national groups and organizations that focus on excellence and equity in mathematics education. CANMEE provides a resource hosted on Loft.io that supports teams and facilitators to conduct Lesson Study.

Lesson Study Alliance is dedicated to enriching the professional lives of teachers and the academic lives of students by supporting the effective use of Lesson Study, especially in mathematics.

Lesson Study Alliance is dedicated to enriching the professional lives of teachers and the academic lives of students by supporting the effective use of Lesson Study, especially in mathematics.

The Lesson Study Network collaborates with the MyLS virtual Lesson Study Portal, an online tool that provides materials and resources for teams engaging in Lesson Study.

The AFT supports a small number of Lesson Study teams as an offshoot of its Thinking Mathematics program