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Our Summery Lottery opens on April 11th and Runs on May 7th

  • To learn about the dates, times, and locations of our summer programs, see our Summer webpage.
  • We have programs for students from Rising 6th to Rising 13th grade. 
  • All of our programs are free. 
  • Our programs are open to all children. Chicago Public School students and students who attended MC2 during the academic year are prioritized. 
  • If you are new to MC2, go ahead and create an account (instructions below) and then return to this page between 4/11 and 5/7 to enter the summer lottery.

Winter Registration is Open! Spaces are now available, first come and first serve--login here

  • If you are new to MC2 you'll need to create an account before enrolling. See the instructions below.
  • To see the locations and meeting dates and times for our in person and online winter programs, see our Locations webpage.
  • We will now offering online sessions on Tuesdays at 7PM at our Haynes-5/6 and Brahmagupta-7/8 program levels, in addition to online programs on Thursdays at 7PM and Saturdays at 10AM.

If you have questions or concerns, please email us at

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Students can register here for math circles including our summer programs as well as our Academic Year Hubs: Back of the Yards, Bridgeport, North Center, Old Town, and the University of Chicago, and online sessions on Thursday evenings and Saturday monrings and afternoons. Each of these circles has different age ranges and meeting dates. Please go to our Locations Page to see which grade levels, dates, times, and locations best fit you. If you are new to MC2, we also recommend our FAQ page, which can help you determine which program level to choose.

Returning students with good attendance from the previous quarter are automatically given spots in our programs if they complete their registration prior to the priority deadline/lottery run. Other students enter a lottery and are in a pool, with priority given to public school students in Chicago, but open to all 5th to 12th graders in Illinois. After the priority deadline (the day we run the lottery) any student can enroll for their session of interest until 4 days before the second session of the quarter. This is on a first come, first serve basis while space is available.

Join our mailing list to be sure to receive announcements about registration, meeting dates for sessions, and more! If you are new to math circles, you should also go ahead and create an account (see below). All Math Circles of Chicago sessions are free!


  • Before you can register for a session, you must create an account. Choose log in below and follow the instructions. 
  • Creating an account does NOT mean you have registered! Once your account is activated you must use the system at the bottom of this page to sign up for a session.
  • During the registration window you will be able to enter a lottery for any locations you are willing to attend, ordering them by preference. You automatically get into your session if there are fewer applicants then spots available. Otherwise we look at your 2nd choice, 3rd choice, etc.
  • You will be notified of admission on our lottery day.
  • If you are admitted to a session you will receive email notification the week prior to the start of the session with details about your site.

Tips for account creation

  • The student email address can NOT be the same as the parent address. You can leave the student email address blank.
  • Chances are 99% that your school is already on our school list, particularly if you live in Chicago. if you begin to type any part of your school's name it should appear in the drop down list.
  • From May to July we enroll for summer. If you create a new account during this time, enter your child's grade level for next school year.


  • From May to July we enroll for summer. If you create a new account during this time, enter your child's grade level for next school year.
  • 5th and 6th Graders should sign up for Haynes-5/6.
  • 8th graders, particularly those not currently in a high school Algebra 1 course, and all 7th graders should sign up for Brahmagupta-7/8.
  • 8th graders and 9th graders enrolled in an Algebra 1 or Geometry course should sign up for Cantor-A1/G
  • Students in 9th grade or above who have completed a Geometry course should sign up for Kovalevsky-A2/PC. Such students are also welcome to enroll in Cantor if they are new to math circles.
  • Students who have completed two years in Kovalevsky-A2/PC should sign up for Euler. We know some younger students are interested in participating in Euler because they are doing advanced course work at school--feel free to email us at to and tell us about yourself, and we can have a conversation about whether Euler is the appropriate choice for you.

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