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What our students say: more
“I enjoyed the numerous fun problems and the interesting lectures.”

Online High School Summer Program

Summer 2023: July 24 - August 10, 2023
Application Deadline:
March 17, 2023 for Early Registration
May 19, 2023 for Regular Registration
More information will be posted soon. Please join our email list to receive a notification when registration opens. You can read information about last summer's program below.

The Summer High School Math Circle consists of two components - in-person and virtual classes: In-person classes will be held at Columbia University from 10am to 3pm each weekday and will include lunch from 12pm to 1pm. Virtual classes run from 10am to 12pm and from 1pm to 3pm (with a break from 12pm to 1pm).

Instructors and teaching assistants are amiable and helpful, and the atmosphere is open and collaborative.

Students are expected to work hard in the program and have fun. For unusual activities, mathematical games, team-building, and more, Fridays are set aside.

Our summer program is in its sixteenth year: the first one ran in 2008. The American Mathematical Society has recognized our program with their Epsilon Award for eight years. You can read some of the lovely comments from past students here.

To subscribe to announcements about student programs, see our subscription page.

Online Summer High School Math Circle (Registration Closed)

When: July 20 - August 6, 2020, Monday - Friday, 10am - 3pm. (Offline unsupervised lunch break from 12-1 pm)
Where: Online.
Exam Dates: May 9 (exam due on May 10)
Application Requirements: Completed application and qualifying exam.
See Application Process below.
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The Online Summer Program is open to all high school students with an interest in learning and doing mathematics above and beyond the regular curriculum.

Interesting topics and intriguing problems will be explored in a casual setting, providing ample challenges for high school students of varying levels. This program emphasizes problem-solving and posing, through a variety of fascinating topics in number theory, algebra, geometry, and more.

This program is appropriate for students wishing to acquire a deeper insight into mathematics, to develop their reasoning and analytical skills, to practice for a math team, or simply to have fun learning and doing wonderful mathematics.

Students are expected to attend the entire 3-week program.

Attendance Policy

Because we have a limited number of places in our program and need consideration for students on our waiting list, students should attend for the entire three weeks.


We require all students to be fully comfortable with at least the first year of regular high school curriculum. Priority for the High School Summer Program will be given to students entering grades 9-12 in the fall, and placement into Levels A, B and C will depend on students’ mathematical level rather than grade level. This is an intensive program, and all levels require willingness to work hard.

Online Tools (for our virtual classes)

Google Classroom will be used to manage classroom materials, and Zoom will be used for remote sessions. Students are recommended to have a laptop or desktop for these sessions, although a smartphone can be used with limited functionality for the live sessions.