arml team 2013

Interested in broadening your mathematical knowledge and sharpening your analytical thinking? Join the Colorado Math Circle for exciting math talks and problem solving sessions hosted by the University of Colorado at Boulder. Speakers will include math professors and mathematicians from around the state. Topics are expected to include number theory, combinatorics, probability, geometry, and group theory.

The Euler Group is intended for advanced high school students. It will meet throughout the year to work on problem solving, focusing on topics outside the standard math curriculum. Past topics have included cyclotomic polynomials, knot theory, computability theory, and dynamical systems.

The Galois Group is intended for advanced middle school students. It will meet throughout the year to work on problem solving. Past topics have included modular arithmetic, Catalan numbers, recursion, and pigeonhole principle. Recommended background: high school algebra. (Grade school students should wait until sixth grade before attending, even if they are currently studying middle or high school math.)

You may attend any meeting without pre-registering but if you would like to add your name to the Colorado Math Circle mailing list, please complete this registration form.


Check our calendar for the 2013–14 meeting schedule.


Meetings will take place in the CU-Boulder Engineering Center or Duane Physics Building or Benson Earth Sciences Building. (See driving directions.) The classroom location will change from month to month so please check our calendar for the correct room number.

math circle news

June 2014

The Colorado ARML A1 Team placed 28th overall at the 2014 ARML Competition, out of 145 fifteen-member regional teams from around the country.

May 2014

Congratulations to the Colorado MathCounts Team which placed 10th at the 2014 National MathCounts Competition! Special congrats to Hongyi Chen of Altona MS who ranked 3rd in the written competition and 6th overall!

May 2014

Congratulations to the Euler 3 team (Hongyi Chen, Lubin Deng, Aaron Lou, Avi Swartz, Scott Weygandt) and Euler 1 team (T.J. Leing, Josh Mundinger, Christine Soh, Nina Vendhan, George Younger, Casey Zhang) which won honorable mention in the high school mixed team division in the 2014 Purple Comet! Math Meet!

April 2014

Congratulations to the math circle members who qualified for the 2014 USA Mathematical Olympiad (USAMO):

Ethan Coldren Fossil Ridge HS
Shawn Ong Douglas County HS
Albert Soh Fairview HS
Jesse Zhang Fairview HS

and USA Junior Mathematical Olympiad (USAJMO):

Avi Swartz Cherry Creek HS
Hongyi Chen Altona MS
Nina Vendhan Kent Denver School
Casey Zhang Fairview HS

March 2014

The Colorado Math Circle tied for sixth place in the 2013-2014 ARML Power Contest. This is the ninth consecutive year we have ranked among the top seven teams overall.

February 2014

Congratulations to the math circle members who have been named winners in the Open Round of the 2014 North American Computational Linguistics Olympiad (NACLO)! The contest attracted more than 1625 participants in the U.S. and Canada. The top winners advance to the five-hour Invitational Round.

Leigha AmickBoulder HS
Shawn Ong Douglas County HS
Albert SohFairview HS
Christine SohFairview HS
Jesse ZhangFairview HS

Older news entries …

bulletcolorado arml

We will be preparing for the 2014 ARML Competition throughout the year. In June 2013 thirty-five students from twenty different schools represented Colorado at the national competition. Colorado placed 23rd in the U.S., out of 139 regional teams. Twice the Colorado team has won national honors: placing first in the B division in 2006 and placing sixth in the B division in 2011. Three times Colorado students have ranked among the top ten individuals in the competition.

Read more …

bulletsummer workshops

Each year the math circle hosts weeklong summer workshops, including Sophie Math for girls.


There is no fee for participating in the Colorado Math Circle. We are fortunate to be supported by the Outreach Committee, Department of Applied Mathematics, and Department of Mathematics of CU-Boulder, and the Rocky Mountain Section of the Mathematical Association of America (MAA).

If you would like to make a donation to the Colorado Math Circle, please .

See our FAQ for answers to frequently asked questions.