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
Give what you can
One-time or monthly — you choose the amount on PayPal's secure page. Both go to the same place.
Donate with PayPal
Secure checkout by PayPal — pay by card, PayPal, or Venmo.
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
- The software this site runs on — servers, database, and storage for every worksheet, recording and piece of student work — plus multiple Zoom licenses for the weekly classes.
- 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.