Professional communities centered on mathematics
We connect teachers and professors through shared mathematical discovery.
“Unparalleled professional development in mathematics and math pedagogy.”
— Heather DanforthClayson, member of AIM MTC and math teacher at Helios School, Sunnyvale, CA
Math Session Videos
An Introduction to Problem Solving
This session gets at the heart of Math Teachers’ Circle: becoming comfortable with not knowing how to solve a problem.
Grid Power
A sheet of grid paper and a simple counting question reveal some deep mathematical surprises.
Exploding Dots
An imaginary counting machine explodes teachers’ preconceptions about arithmetic.
MTCs empower teachers’ voices and experiencesMTCs are highlighted as a “bright spot” in teacher professional development in a 2017 white paper published by 100Kin10.


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