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Support the program
501(c)(3) non-profit · tax-deductible

The teaching is free. The rest is not.

CSK Math Circle is a volunteer-run non-profit. The teaching is donated; the software, the rooms, and the competition fees are not.

Make a gift

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One-time or monthly. Both go to the same place.

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CSK Math Circle is a program of CSK Foundation, a registered 501(c)(3) non-profit organization. Contributions are tax-deductible to the extent allowed by law.

Where your gift goes

Every teacher here is a volunteer, so nothing goes to salaries. What money there is covers the things a volunteer cannot donate.

Platform
Multiple Zoom licenses, plus hosting and storage for recordings and materials.
Venue
Classes are online, but benchmarks are sat in person — at least four rooms, one per level, rented for every benchmark day and for the Math Kangaroo exam we host.
Competitions
Registration and proctoring for Math Kangaroo and the AMC 8, including the students we host from outside the program.