UW Math Circle 2025-26
Announcements
1/13/2025: Welcome to Math Circle 2025-26! Our Winter schedule is now posted below.
Show previous announcements
8/17/2025: Enrollment will open soon. Check back early September for details.
9/10/2025: Enrollment is open on a first-come-first-serve basis, and will close 9/23/2025 or upon reaching capcity, whichever comes first. Enroll today at the link above!
9/29/2025: Welcome to Math Circle 2025-26! Our Autumn schedule is now posted below.
12/14/2025: Enrollment is now open for Winter quarter on a first-come-first-serve basis, and will close 12/30/2025 or upon reaching capcity, whichever comes first. Enroll today!
Meeting information
When: Tuesdays 5pm–6:30pm
Where: Room 403 in the Paul G. Allen Center at UW Seattle (185 E Stevens Way NE, Seattle, WA 98195)
Parking options may be found here . The Paul G. Allen Center is directly between “CPG” and “E17” in the above map. It is also an 8 minute walk from University of Washington station on Link light rail, and served by many King County Metro bus routes.
Important dates
| Date | Event |
|---|---|
| 9/30/2025 | First day of autumn quarter |
| 11/11/2025 | Veteran’s Day, no class |
| 12/9/2025 | Last day of autumn quarter |
| Winter break, no class | |
| 1/6/2026 | First day of winter quarter |
| 2/17/2026 | SPS mid-winter break, no class |
| 3/17/2026 | Last day of winter quarter |
| Spring break, no class | |
| 3/31/2026 | First day of spring quarter |
| 4/14/2026 | SPS spring break, no class |
| 6/9/2026 | Last day of spring quarter |
Autumn quarter schedule
| Week | Date | Topic |
|---|---|---|
| 1 | 9/30/2025 | Combinatorial games |
| 2 | 10/7/2025 | Presentations and proofs |
| 3 | 10/14/2025 | Guest session by Andrei Okounkov (TBD) |
| 4 | 10/21/2025 | Polyhedra |
| 5 | 10/28/2025 | Pigeonhole principle |
| 6 | 11/4/2025 | More combinatorial games |
| 11/11/2025 | Veteran’s Day, no class | |
| 7 | 11/18/2025 | Knot theory |
| 8 | 11/25/2025 | Non-Euclidean geometry |
| 9 | 12/2/2025 | Introduction to number theory |
| 10 | 12/9/2025 | Puzzles |
Note that there is no Thanksgiving break this year, because Veteran’s Day falls on a Tuesday.
Winter quarter schedule
| Week | Date | Topic |
|---|---|---|
| 11 | 1/6/2026 | Bulgarian Solitaire |
| 12 | 1/13/2026 | Graph Theory |
| 13 | 1/20/2026 | Linguistics |
| 14 | 1/27/2026 | Linkages |
| 15 | 2/3/2026 | Origami |
| 16 | 2/10/2026 | Braids |
| 2/17/2026 | President’s Day, no class | |
| 17 | 2/24/2026 | Topology |
| 18 | 3/3/2026 | Tilings |
| 19 | 3/10/2026 | Cryptography |
| 20 | 3/17/2026 | Math Auction |
Spring quarter schedule
| Week | Date | Topic |
|---|---|---|
| 21 | 3/31/2026 | Teamwork Puzzles |
| 22 | 4/7/2026 | Combinatorics |
| 4/14/2026 | Spring break, no class | |
| 23 | 4/21/2026 | Geometric Constructions |
| 24 | 4/28/2026 | Voting theory |
| 25 | 5/5/2026 | Probability |
| 26 | 5/12/2026 | Juggling |
| 27 | 5/19/2026 | Symmetries |
| 28 | 5/26/2026 | Latin Squares |
| 29 | 6/02/2026 | Funny Geometry |
| 30 | 6/09/2026 | Estimathon |
Questions?
Contact Julia Pevtsova at: julia [at] math [dot] washington [dot] edu.