National Council of Teachers of Mathematics (NCTM)

The National Council of Teachers of Mathematics (NCTM) is the public voice of mathematics education, supporting teachers to ensure equitable mathematics learning of the highest quality for all students through vision, leadership, professional development, and research.  Founded in 1920, NCTM is the world’s largest mathematics education organization, with 90,000 members and more than 230 Affiliates throughout the United States and Canada.