Support the Colorado Math Circle

The math circle offers extracurricular math opportunities for young math enthusiasts from around the state. Our goal is to develop problem-solving skills, promote collaboration, strengthen mathematical writing, improve oral communication skills, and, most importantly, build a supportive math community.

Donations are welcome and much appreciated. The math circle organization is run by unpaid volunteers (including the directors) who donate their time. We rely on program fees and donations to cover expenses. The math circle does not receive other financial support.

The Colorado Math Circle is a 501(c)3 nonprofit corporation (EIN 39-4809445, Colorado registration #20253033944). Donations are tax-deductible. Payment via Zelle or check (no fee) is preferred, but Paypal or Venmo (with a small fee) is also an option.

Zelle

Use Zelle to contribute to . Please include your name, street address, and email address. Zelle does not charge a transaction fee.

Paypal

Use Paypal to donate to the Colorado Math Circle. Please include your name, street address, and email address. Paypal charges a small transaction fee.

Venmo

Use Venmo to donate to @coloradomathcircle. Please include your name, street address, and email address. Venmo charges a small transaction fee.

For other payment methods, contact . We appreciate your support!