In 2024–25, MC2 served 5,589 students, making us the largest math circle in the U.S.—and likely the world.
Our model works because of a highly engaged network of over 100 passionate educators, committed to delivering programming that is second to none.
MC2 offers three levels of programming, all of which have grown significantly in the past five years.
As we’ve grown, we’ve focused intentionally on equity and representation.In just three years:
• Black and Latino participation: 47% → 69%
• Students from majority low-income schools: 37% → 64%
• Girls in our programs: 46%
We strategically add five After School Programs each year—primarily on Chicago’s South and West sides—and opened one major camp site along with four smaller sites in summer 2025.
Our programs work because they inspire. Beyond the numbers, our students share stories of newfound confidence, joy in problem-solving, and a belief that math is for them.
of students are satisfied with their MC2 experience
students say "I got to do math in a way I don't usually get to in school."
now identify as a “math person”
More than 100 educators lead MC2 programs—classroom teachers, graduate students, professors, STEM professionals, and high school or undergraduate assistants.We invest deeply in teacher development through workshops, coaching, peer reflection, and community discussions.
89% of our teachers say "Teaching in MC2 has improved my teaching of problem solving and investigatory math in my everyday classroom.
86% of our teachers say "Teaching in MC2 has made me more inclined to continue teaching."
95% teacher satisfaction rate.
Our mission is simple: Make high-quality, joyful math enrichment accessible to all children in Chicago. We measure success not only by the number of students we reach, but also by who we serve, how engaged they become, and the lasting impact on their education and careers.
Chicago students have participated in MC2 programs since 2012.
of MC2 students live in underserved communities.
of students say MC2 made them more interested in math.