Founded in 1920, the National Council of Teachers of Mathematics (NCTM) is the world's largest mathematics education organization throughout the United States and Canada.

October 2025 - We're launching a short, quarterly Advocacy Newsletter to keep you informed about how NCTM is working to advance policies at the federal level that support mathematics teachers, ...

Log in and then download this digital certificate of participation and self-document your participating hours. Your school or district determines the acceptance of ...

The Designing Innovative Lessons and Activities for Mathematics Teaching Grant is sponsored by the Mary P. Dolciani Halloran Foundation. This grant supports the research-and-writing of mathematics ...

A teacher shares strategies for helping students communicate their thinking about mathematics.

NCTM established the Mathematics Education Trust (MET) in 1976 to channel the generosity of donors by creating grants for preservice teachers, in-service teachers, coaches, teacher-leaders, teacher ...

Pi Fight is designed to help students become comfortable with using both radians and degrees. Choose between radians, degrees, or a combination of both to hit Okta, the octopus. Choose between radians ...