Our Favorite Math Circle Activities


An Online & Interactive Lightning Talk Event The SIGMAA-MCST & the Math Circle Network are pleased to present this event focused on generating excitement for your local Math Circle meetings. The event will begin with Lightning Talks by four engaging speakers known for their outstanding work with Math Circles: Following the Lightning Talks, we’ll split […]

SF Math Teachers’ Circle Episode 1 Season 6: GeoMetric Puzzles

Proof School 973 Mission Street, San Francisco, California

Geometric Puzzles: Tiles and Rep-Tiles We'll explore puzzles which are appealing to both children and adults: tangrams, pentominoes, supertangrams, and rep-tiles. All of them involve the use of specific tiles to cover various figures. In most cases, we'll use hands-on materials. Although most of the puzzles we'll tackle can be solved, we'll prove some are […]


Wayne and Washtenaw Counties Math Teachers’ Circle


We are a professional community of learners, bringing together mathematics teachers and mathematicians monthly to engage in mathematical problem solving. All are welcome! We welcome all teachers who would like to participate in the Wayne and Washtenaw Counties Math Teachers’ Circle. Please register by clicking the following link

Math Teachers’ Circle 4 Social Justice (MTC4SJ)


Data Science is a burgeoning field of both study and opportunities for employment. But what does data science look like in a math classroom and how does this intersect with Social Justice? Join us as we investigate how colorism may play a role in popular media by analyzing media “manually” and with data science tools. […]

January 2023 MTCA Session: “Let’s Meet in the Middle”

University of Texas at Austin Physics, Mathematics, Astronomy (PMA) Room 9.166

The University of Texas at Austin Math Teachers' Circle Please join us in person for dinner & active mathematics led by Dr. Lorenzo Sadun of UT Austin! The Intermediate Value Theorem says that a function that goes from negative to positive (or vice-versa) either has to pass through zero or has to jump. This simple […]

Math Circle Network First Thursday Virtual Game Night


Please join us on upcoming first Thursday at 4:30 Pacific / 5:30pm Mountain / 6:30pm Central / 7:30pm Eastern Time on Zoom. The registration link is here. You're welcome to play any math game with friends, family members, or even strangers that you meet on Zoom. We'll also recommend a game each month that is family-friendly and […]

Tulsa Math Teachers’ Circle

University of Tulsa 430 S. Gary Place Tulsa, OK, 74104, Tulsa, Oklahoma

The Tulsa Math Teachers’ Circle usually meets in the first week of selected months during the school year. After a light meal, a topic in mathematics is explored through problem solving and discovery. Mathematics Educators and Professionals at all levels are welcome and encouraged to attend. There is no cost to you, so come and […]

Chicago Math teachers circle meeting: Counting trees, asking questions, and connecting the dots.

Loyola University Institute of Environmental Study Room 110 6349 N Kenmore Ave, Chicago, Illinois

We eat dinner, solve problems, and talk about math! Dinner is served at 4:45 p.m. The Chicago Math Teachers' Circle is intended to be an opportunity for math teachers to gather and solve problems together. Teachers of all grade levels are welcome.  We are part of the national Math Teachers' Circle Network and share their goals and […]

Stanford Math Teachers’ Circle

Stanford University 224 Panama St (Nora Suppes Hall, Room 103), Stanford, California

Each second Tuesday of the month (besides February) the Stanford MTC will meet from 5 to 8 p.m. at Stanford University in Nora Suppes Hall, Room 103. There will be a different instructor leading the event each month. If interested, Please email Tyler Knapp <tknapp@aimath.org> if you would like to be added mailing list for this monthly event. […]

Carson Math Teachers’ Circle: A “Perfect” Ruler

California State University, Dominguez Hills 1000 E Victoria St, Carson, California

What is a “perfect” ruler? Is it possible to measure all possible integer lengths on a ruler without marking every integer on that ruler? Come see if you measure up to what it takes to make a “perfect" ruler.