MoMath’s gifted math program for students grade 9-12

Sundays, 4:00 pm to 5:30 pm

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MoMath is delighted to announce that Expansions, the gifted program to engage and challenge New York City’s brightest math students, is launching Icosahedron, a high school track taught by University of San Francisco Professor of Mathematics Paul Zeitz.  Paul is also an International Math Olympiad participant and trainer, co-founder and Board Chairman of Proof School, co-founder of the San Francisco Math Circle, co-founder of the Bay Area Math Olympiad, and author of The Art and Craft of Problem Solving.

MoMath is currently accepting applications for limited spots in the fall 2019 semester.

Application process

MoMath’s Expansions program offers a small class size approach, hands-on lessons, and a long-term, cohort model that builds dynamic groups of students who learn effectively together and return year after year.

Applications are considered on a rolling basis as spots become available.  To apply, first take this self-assessment to determine if the level of content of Icosahedron is right for you.  (Please note that no refund will be provided if the content level is not a match.)  Then, please fill out this online form and follow the instructions provided upon submitting the form.


The Icosahedron fall 2019 semester will run from Sunday, September 29, through Sunday, December 15, from 4:00 pm to 5:30 pm.  Sessions will meet on these days:

September 29
October 13
October 20
October 27
November 3
November 10
November 17
November 24
December 8
December 15


Participation will require full semester enrollment. Early bird registration for the semester is $995; full year is $1,800 (current Museum members at the Membership Squared level or above receive a 10% discount).  MoMath does not prorate fees for mid-term registrations, and refunds will not be given for absences or for any other reasons.  Museum admission is not included in the registration.

No refund will be provided for withdrawal from Icosahedron for any reason, including issues related to content level.

Need-based scholarships are available.  Scholarship applicants must meet the income guidelines of the federal Free and Reduced Lunch program and provide verification of household income.  Scholarship applicants should complete the regular application form online and send a separate email to scholarships@momath.org with a request for scholarship application instructions.  Please allow at least two weeks for the scholarship committee’s review process.


MoMath will make every effort to run classes as scheduled, but occasionally severe inclement weather or other unusual circumstances beyond MoMath’s control may require that a class be cancelled.  If such a cancellation occurs, MoMath may, at its sole discretion, offer make-up sessions.

Note that grade-level sessions will run only if a minimum number of participants is reached before the start date of the full session.  In the rare event that a grade-level series is cancelled, registrants will be notified and provided with a full refund.

MoMath does not provide make-up classes for absences.  Each Expansions series accepts a limited enrollment in order to provide individualized attention to each student.  While many reasons may cause a student to miss a class, a registered student holds a reserved seat while others may be turned away due to limited capacity.  Additionally, the Museum provides staffing, materials, and other resources based on registration.  For these reasons, the Museum has a strict no-refund and no make-up policy.

The Icosahedron class is scheduled to end at 5:30, after the Museum closes at 5:00 pm; adults may wait in Additions, the shop at MoMath, and students will be brought there for dismissal.  Students may leave on their own, if permission is granted during registration in the “Authorized Pick-Up List.”

All Expansions participants are expected to exhibit good behavior to ensure a positive experience for all participants.  At its sole discretion, MoMath may remove a student from the Expansions program for behavioral reasons.  If a student is removed for behavioral reasons, for either the day or the remainder of the program, no refund will be provided.