2012 New Year Invitational
Welcome to Orange County Math Circle
The Orange County Math Circle is a student-run, nonprofit community service organization where high school students gather to explore advanced problem solving topics and teach motivated students in underserved schools in Orange County. By integrating learning and teaching, students take part in serving the community in strengthening math culture and making resources accessible to all who want to learn.
The Orange County Math Circle was founded in 2007 by math enthusiast Johnny Li (St. Margaret's Episcopal School, Class of 2011) to bring his experience from San Diego Math Circle to share with more students in his hometown. Please read Orange County Math Circle: Where Math & Service Meet by Johnny Li, an article published in the March/April 2011 issue of Imagine, a national magazine by Johns Hopkins University for precollege students or Orange County Math Circle, A Service Learning Project by Dr. Michelle Muratori of Johns Hopkins University to learn more about our history.
2012 New Year Invitational
2011 Thanksgiving Tournament
2011 Toy Drive
2011 All-Girls Math Tournament
The 2nd annual All-Girls Math Tournament was held this past Saturday, April 30th, 2011 by OCMC at St. Anne School in Laguna Niguel. After noon, over a hundred girls grades 3 through 8 flooded into the school gym, which was decorated with pink banners and balloons. The girls gradually settled down to tackle the first set of math problems, the individual round. Gathered in groups, many went afterward to browse the variety of mouth-watering treats sold at the snack bar just outside and discuss the challenging set of forty problems. Read More...
OCMC Representatives Attend the "Circle on the Road"
As a part of the National Association of Math Circles, OCMC was invited to participate in the Circle on the Road Event the weekend of March 18 - 20. Johnny Li, Alex Zivkovic, and Andrew Ma all participated in the three day event and gave a presentation about our work here in Orange County. Read More...
Intel Science Talent Search Finalist Johnny Li Visits the White House
President Barack Obama talked with the 2011 Intel Science Talent Search finalists in the White House on March 15, 2011. The OCMC founder, Johnny Li, was among the 40 high school seniors who were in Washington D. C. showcasing their research and meeting national leaders and world-renowned scientists. Click here to read the official post of The White House Blog. The judges have voted. Now it's your turn to choose. Learn about the 40 finalists that competed in the Intel Science Talent Search 2011 and their innovative research, then VOTE for your favorite finalist Jonathan Li! The voting period is March 16 - April 4, 2011. You can vote as many times as you want. Click here or on the People's Choice Awards Vote! button to vote now.
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2011 New Year Invitational and MATHCOUNTS Scrimmage
More than 120 students participated in the 2011 New Year Invitational and MATHCOUNTS Scrimmage held at St. Margaret's Episcopal School on January 16, 2011. Click tournament results, story or photos for more information.
OCMC Hosts MATHCOUNTS Master Class - December 19, 2010
Santa Ana Math Club - December 11, 2010
2010 Thanksgiving Math Tournament - November 27, 2010
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Santa Ana Math Club Had Another Fabulous Day! - November 20, 2010
Another outstanding day! So now we have 83 students enrolled, 74 of which came today, on another cold, rainy day! Alex and Sean had 30 sixth and seventh graders, while Jennifer, Vincent and Johnny taught 44 fourth and fifth graders. "The kids are enthusiastic, and really excited about learning from high school kids. They really look up to all of you, and admire you as role models", said Mrs. Nita Walker of the Santa Ana Unified School District.
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Click Santa Ana Math Club Session 2 Photos for more pictures.
OC Math Circle Hosts 2010 Harvard-MIT Online Math Tournament - November 7, 2010
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On Sunday, November 7, 15 students from 7 high school participated in the first Harvard-MIT Online Math Tournament. Click here for photos and here for a short story.
OC Math Circle Hosts Third AMC 8 Practice Session - November 7, 2010
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OCMC hosted its third AMC 8 practice sessions on November 7. Click here for photos and here for a short story.
OC Math Circle Hosts First Santa Ana Math Club Session - October 23, 2010
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Over 60 students from Santa Ana Unified School District participated in the inaugural Santa Ana Math Club class. Sean, Alex, Elisa, Staphany and Johnny hosted the session. For more photos, click album Santa Ana Math Club Session 1. For a short story, click OCMC Held First Santa Ana Math Club Session.
OC Math Circle Hosts Second AMC 8 Practice Session - October 17, 2010
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The second AMC 8 practice session was held on October 17. Johnny, Tyler, and Arjun hosted the session for 43 students. For more photos, click album AMC 8 Practice Session 2.
OC Math Circle Hosts First AMC 8 Practice Session - September 19, 2010
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For more photos, click album OC Math Circle AMC 8 Session 1
A $2,000 Math Circle Mini-Grant from MSRI
Be a Member Today
Everyone can become a member of the Orange County OC Math Circle. We welcome your participation whether you are a volunteer, a supporter, a sponsor, or a friend. To register, click on Register in the menu bar on the top right and follow the instructions. If you have any questions regarding OC Math Circle Membership and the programs we provide, please contact us anytime! We look forward to hearing from you.
Volunteer Opportunities
Orange County Math Circle hosts mathematical events for students in grades 3 to 12. We encourage your participation and especially welcome volunteers from all sectors of the math community--students, parents, teachers, and friends.
- Math Tournament Directors, Test Writers, Bookstore Managers, Event Organizers, and Graders
- Instructors and tutors to teach our classes
- Orange County Math Field Day Graders
- MATHCOUNTS
- Event writers and photographers
2012 All-Girls Math Tournament
