Professional communities centered on mathematics

We connect teachers and professors through shared mathematical discovery.

Image provided by San Diego MTC


“Unparalleled professional development in mathematics and math pedagogy.”

Heather Danforth-Clayson, 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.


More videos >

Other mathematical materials >

Upcoming Events

We are pleased to announce the Summer 2020 Math Teachers’ Circle Network Virtual Workshop, July 13-17! Learn more and pre-register for drop-in sessions at https://mathcommunities.org/teachers-online-workshop/.

During stay-at-home orders related to COVID-19, we encourage you to participate in Joyful Math Online Events. Visit AIM’s new Math Communities site for more information.


Statement on Racial Injustice

The American Institute of Mathematics and the Math Teachers’ Circle Network stand in solidarity with the Black community and with peaceful protesters across the nation and the world in outrage, grief, and despair over the brutal police killing of George Floyd and many other Black individuals before him. As a community of educators, we reaffirm our commitment to diversity and inclusion in the fundamental human endeavor of mathematics. Let us draw upon the power and beauty of mathematics as we work together to bring about systemic change and greater justice for our students and our society.


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MTCs empower teachers’ voices and experiences

MTCs are highlighted as a “bright spot” in teacher professional development in a 2017 white paper published by 100Kin10.

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MTCircular Magazine

Our popular semi-annual magazine shares stories and insights from Circles across the country. Subscribe here.

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Start a Circle

Our Organizer Toolkit contains a wealth of materials to help you start a successful, self-sustaining MTC. Our seed grant program provides start-up funding to selected Circles.