Where Math Meets Curiosity
QED (short for quod erat demonstrandum) is Math Circles of Chicago’s annual math symposium. It is a one-of-a-kind event where students present math and computer science projects they’ve created themselves. From playful puzzles to real-world applications and pure math research, QED empowers young people to think deeply, work creatively, and share their discoveries.
Each December, more than 100 students present their work to judges including math professors, graduate students, and educators. Participants get the chance to earn recognition, win prizes, qualify for the City STEM Fair, and connect with mentors who can guide their future studies.
Many QED students participate in the Illinois State Science Fair, and a few have been Regeneron Finalists!
Real-World Experience
Students tackle problems they care about, develop original solutions, and present their findings—just like professional researchers and scientists.
Mentorship & Support
MC2 connects participants with mentors, resources, and workshops to help them develop and refine their projects.
Recognition & Opportunities
QED participants earn visibility for their work, gain confidence as problem-solvers, and can advance to city, state, and even national STEM competitions.
When & Where?
QED 2025 will take place December 13th, 2025 at Payton High School
In 2023 More than 100 students present their original math research, judged by math professors, graduate and undergraduate students, and teachers. Students get shirts, pizza, books, free software, and an opportunity to qualify directly for the City STEM Fair! Many QED students participate in the Illinois State Science Fair, and a few have been Regeneron Finalists!
Key Dates for QED 2025:
December 1: Senior (9th-12th) Papers Due
December 5: Junior (5th/6th) Papers Due
December 5: Intermediate (7th/8th) Paper Due
December 13: Projects Presented at Payton
FAQS
QED FAQs
What do I do if I have trouble coming up with a math idea to research?
Fill out an inquiry form! We are usually able to identify a math graduate student, teacher, or community member with an advanced math background to mentor you and help you come up with a project idea. High School students should join College Pathways and explore the Research Pathway!
Can I register for QED with a partner?
QED projects can have up to one partner per project. Senior division projects with partners cannot advance to the city science fair. Follow the instructions in this document to register with your partner.
our team
Meet our QED Coordinators
Michelle Harton
Graham Rosby
