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Mission Statement
Our Mission

Established in 2015, Math Circle Online (MCO) is a non-profit organization with a mission to develop a community of students interested in math study and help others to better perform in various math competitions. We collect and categorize free math study resources. Most importantly, we encourage you to contribute math problem solving videos so that others can benefit from them. Your volunteer effort is warmly welcome!


Eric Wu, The Founder


Management Team
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President/Founder: Eric Wu

Vice President: Alex Lin, David Lin

Secretary: Christopher Yang

Treasurer: Adam Li

Contribute Your Video!
If you are interested in contributing math videos, please email


We need your name, school grade, and the choice of topic(s) so that the tasks are to be distributed in concert.
The tutoring videos made by you will be checked by management members and posted to our dedicated YouTube Channel for public.
Member Contribution Highlights
Jason Wu: 2017 AMC 10B Question 04

Oliver Jiang: 2015 AMC 8 #25

    David Lin: 2015 AMC 10B #17

        High School (Grade 9-12)Middle & Elementary School
        Others Videos

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