Established in 1966, the North Dakota Council of Teachers of Mathematics (NDCTM) is a partner affiliate of the National Council of Teachers of Mathematics. As a professional organization dedicated to supporting mathematics educators across the state, NDCTM works continuously to improve the teaching and learning of mathematics from elementary through post-secondary levels. A primary goal of the council is to provide vital forums for professional development, networking, and the exchange of pedagogical ideas. The organization's premier event, the NDCTM Summer Conference, is held annually in June, bringing together educators from across North Dakota to collaborate, share innovative lesson materials, and discuss the future of math education.

NDCTM members include elementary, secondary, and post-secondary classroom teachers. Current membership is at about 350.