San Francisco Math Circle
After-school and camp-style math enrichment with problem-solving and puzzles at San Francisco State University, offering spring and summer sessions.
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Berkeley Chess School Scholastic Tournaments
Weekly USCF-rated scholastic chess tournaments held across the Bay Area (Berkeley, Walnut Creek, Alameda) and open to K-12 players including high schoolers, run by the Berkeley Chess School since 1982.
Camp Lemma
One-week summer math day camp in the East Bay for kids who love math, focusing on problem-solving and mathematical games for rising 4th-9th graders.
Firecracker Math Summer Camp
Multi-site Bay Area math camp with locations in Oakland, Berkeley, San Francisco, Lafayette, Mill Valley, Danville, and Alameda focusing on creative problem-solving.
San Jose Math Circle
Weekly math circle in San Jose focused on problem-solving and advanced topics for motivated students interested in mathematical competitions.
Serra High School Summer Math Advancement
For-credit high school math courses (Geometry, Pre-Calculus) in compressed summer format, open to students from other schools with approval.
Summer Academy at Quarry Lane
Dublin, CA private-school Summer Academy offering compressed UC-approved high school math courses for credit and acceleration.