The regular time and place for the circle event is 3:30 pm-5pm every Sunday in Room 199, Cupples I, on the Danforth Campus at Washington University in St. Louis. All sessions are in-person unless otherwise notified. Please see the schedule for Fall 2023 below.
| Date | Speaker | Topic | Mentors |
| Sep 17, 2023 | Prof. Nan Lin | Plane Geometry in AMC Tests: Angle Chasing (handout) | Allison Berman, Carson Brame, Gavin John |
| Sep 24, 2023 | Nathan Lesnevich | Cryptography: The math of making and breaking codes (handout) | Carson Brame, Sophia Dykstra, Gavin John |
| Oct 1, 2023 | John Naughton | Introduction to Knot Theory (handout) | Carson Brame, Sophia Dykstra, Gavin John |
| Oct 8, 2023 | Pooja Joshi | Groups and Symmetries (handout) | Gavin John, Aaron Lin |
| Oct 15, 2023 | Akshata Pisharody | Using Topological Invariants to Win at Games | Carson Brame, Gavin John, Lexy Sokolowski |
| Oct 29, 2023 | Prof. Nan Lin | ARML Power Contest | Gavin John |
| Nov 5, 2023 | Prof. Nan Lin | AMC 10 mock test | Gavin John, Aaron Lin, Sydney Mayer |
| Nov 12, 2023 | Prof. Wanlin Li | Quadratic number fields | Carson Brame, Sophia Dykstra, Lexy Sokolowski |
| Nov 19, 2023 | Devin Akman | Finite Fields | Carson Brame, Sophia Dykstra |
| Dec 3, 2023 | Prof. Alan Chang | Mathematics of the Rubik’s cube | Carson Brame, Sophia Dykstra |
Important dates for math competitions
AMC10/12: Nov 8, 2023 (Test A) and Nov 14, 2023 (Test B)