Season
Spring 2026
Spring 2026 met roughly every other Saturday on UNC campus.
Meeting times & rooms
- Mobius Noodles — 9:00 – 10:00 a.m., Phillips 206
- Beginners — 10:30 – 11:30 a.m., Phillips 208
- Elementary — 10:30 – 11:30 a.m., Phillips 206
- Intermediate — 10:30 – 12:00 noon, Phillips 224
- Advanced — 10:30 – 12:00 noon, Phillips 220
Schedule
| Date | Mobius Noodles | Beginners | Elementary | Intermediate | Advanced |
|---|---|---|---|---|---|
| Jan 17 | Playing with Shape and Form: A Glimpse of Topology (Maria Droujkova and Dmitri Droujkov) | Christmas Numbers (Dilip Barman) | The Pool Testing Lab, Part 1 (Dorian Varney) | Weighing Puzzles (Scott Hallyburton and Reiyah Jacobs) | Thinking Combinatorially (David Yavenditti) |
| Jan 24 | Math circle will not meet. | ||||
| Jan 31 | Canceled due to snow. | ||||
| Feb 7 | Math circle will not meet. | ||||
| Feb 14 basketball game | A Glimpse of Topology, Part 2 (Maria Droujkova and Dmitri Droujkov) | Counting Salad Bar Choices (Dilip Barman) | Pool Testing and Symmetry (Dorian Varney) | The Game of Nim (Reiyah Jacobs) | The Math Behind Kakuro (Josh Mott) |
| Feb 21 | Math circle will not meet. | ||||
| Feb 28 basketball game | “AL, Logical”: Comics and Puzzles (Maria Droujkova and Dmitri Droujkov) | Triangles, Triangular Numbers, & Handshakes (Dilip Barman) | Mobius Bands (Dorian Varney) | The Game of Nim – Part 2 (Reiyah Jacobs) | Farey Sequences (David Yavenditti) |
| Mar 7 | Math circle will not meet. | ||||
| Mar 14 Pi Day / race on campus | The Walkable Radian and Pi=4 (Maria Droujkova and Dmitri Droujkov) | Pi Day (Dilip Barman) | Pi Day Extravaganza (Dorian Varney) | Logic Puzzles and Bogard Problems (Scott Hallyburton and Reiyah Jacobs) | Pi Day 2026 (David Yavenditti and Josh Mott) |
| Mar 21 | Math circle will not meet. | ||||
| Mar 28 | Fold and Cut Theorem (Maria Droujkova and Dmitri Droujkov) | Pi Day Part 2: Circle Constructions (Dilip Barman) | Piece Puzzles (Victoria Yan) | Bridge Building (Scott Hallyburton and Reiyah Jacobs) | Topics in Topology (David Yavenditti) |
| Apr 4 | Math circle will not meet. | ||||
| Apr 11 UNC Science Expo | Instead of a regular meeting, we will have a booth at the UNC Science Expo; come see us there! | ||||
| Apr 18 Tar Heel race | Math circle will not meet. | ||||
| Apr 25 | Action Origami and Huzita-Hatori Axioms (Maria Droujkova and Dmitri Droujkov) | The Game of Nim (Dilip Barman) | Locker Problems and Tricks (Dorian Varney) | Cryptography (Reiyah Jacobs) | The Calkin-Wilf Tree and Its Siblings (David Yavenditti) |
Many of the problems come from books in the MSRI-AMS Mathematical Circles Library.