Fast Facts about MathILy-Er!

Who: Mathematically talented high-school students. More details.
What: Five weeks of intense interactive inquiry-based individualized instruction. More details.
When: June 25 - July 29, 2023.
Where: Eastern University. More details.
Why: Because math is cool!
The application process: Has three parts (short form, Exam Assessing Readiness ear, not-as-short form). More details.

A sample morning class at 500x speed

Note about SARS-CoV-2/COVID-19: In 2023 MathILy-Er will take place in person and with full vaccination required. If a change in pandemic conditions makes this impossible, then the programs will move online with synchronous classes.

Fee:$4950 ($990/week).
Financial Aid: With the generous support of Jane Street*, the AMS Epsilon Fund, and individual donors, we are able to award financial aid for MathILy-Er 2023. All financial aid is based entirely on need, and yes, the entire fee may be waived for an admitted applicant with significant need. In the past we have been able to meet the demonstrated financial need of almost all admitted students, and we expect this will be the case again in 2023. Priority is given to U.S. students over international students, and we do not currently award financial aid to interplanetary or interstellar students. In addition, Mu Alpha Theta has grantsfor students who have been members for at least a semester. Past MathILy-Er students have benefitted from this excellent program!
*Jane Street is a quantitative trading firm with offices worldwide that hires smart, humble people who love to solve problems, build systems, and test theories---and they have a puzzle page!
Number of students: about 30.

Yes, we existed in several previous summers. More details.

Slow Facts about MathILy-Er!

Academic details: Class meets for about 7 hours per day, in two shifts (morning and evening), 6 days per week. Each class has a Lead Instructor who is a mathematician with a Ph.D. and one or two Apprentice Instructors who are graduate or undergraduate mathematics students. The weeks break down into a 2-1-2 schedule: We start with two weeks of Root Class, which consists of a gallimaufry and melange of mathematics that gives all students a base on which to grow. This is followed by Week of Chaos, in which there are many many short classes with topics suggested by students and instructors alike. The denouement of the program offers a more advanced Branch Class in the final two weeks.

Mathematical content: It's undergraduate- and graduate-level mathematics not usually encountered in high school. (You may correctly conclude that calculus is not one of the topics on offer---we don't want to spoil anyone's fun!) The core of the curriculum is discrete mathematics, with additional material determined partly by the interests and direction of the class. Topics for Root Class will certainly include combinatorics, graph theory, binary linear algebra, infectious disease modeling, and number theory, and are likely to include proof techniques, combinatorial game theory, and ring theory. Some of that may sound familiar, but at MathILy-Er we look at aspects of the material that will be new to you. Each topic will be treated in depth, or at an advanced level (or both!), and there is no overlap with the MathILy Root curriculum. If there's a topic you want to learn about and your class doesn't discuss it, ask that it be offered during Week of Chaos! Topics could include hyperplane arrangements, cryptography, quadratic forms, generating functions, finite automata, ordinal numbers and more. For 2023, the Branch Class topics are likely to include probability and non-Euclidean geometry.

Students investigate a tangle in Daily Gather

Students investigate a tangle

Differences from MathILy: MathILy-Er is designed for students who are slightly earlier in their chronology or mathematical development, but who still want the intensity of a five-week residential summer program. MathILy-Er is highly selective, and the curriculum often includes current research-level mathematics. The topics studied at the two programs are entirely different from one another, so MathILy-Er alumns are encouraged to apply to MathILy in future summers.

A presentation in a Week of Chaos class

A presentation in a Week of Chaos class

The instructor, wearing stripes, observes student work.

Class format: Each class is taught in an entirely interactive way, with students discovering mathematics and leading the way in sharing conjectures and providing proofs. Classes include independent and collaborative problem solving as well as lots of laughter; in this way, students learn creative and rigorous mathematical thinking and writing.

Daily schedule: Breakfast, then class, then lunch, then mostly-free afternoon, then Daily Gather, then dinner, then class, then... maybe you'll be tired and want to go to bed. The afternoon is only mostly free because (a) in some afternoons, you'll work on writing summaries of what's happened in class, and (b) you and your newly-made friends will play frisbee and music and games and do new and interesting things never yet conceived. By the way, the instructors live in the dorm with students so they're around for every activity in the list that starts this paragraph.

We seek:

MathILy-Er is for high-school students. If you're not in high school, we will still consider your application, but high-school students generally take precedence in admissions. See the application process page for more details.

Finding lots of almost-right triangles

Finding lots of almost-right triangles

Skills Enhanced: You'll learn how to be a mathematician---that includes acquiring good thinking habits, good problem-solving habits, and good writing habits. That will help you excel in collegiate mathematics classes and other collegiate classes, and for that matter in internships and research programs in many fields. You'll practice asking questions and using mathematical language and making anagrams.

Not-exactly-math things: Part of MathILy-Er is a "life seminar." We'll have a program-wide discussion about college choices, and a session on career possibilities in and outside of the mathematical sciences. There will regularly be surprising cool activities (no details or they wouldn't be surprising). At the end of the summer, instructors will write individual evaluations that include descriptions of student work and progress as well as suggestions for improvement. (In most cases, these can easily become letters of recommendation.)


Levity-infused Daily Gather

Why Eastern is an awesome place to be in the summer:
Campus is beautiful. And very safe!
The dorms are really nice, and have air conditioning. (So do the classrooms.)
Laundry is free.
A short walk from campus there is a shopping are including a bookstore, an ice cream and candy place, pizza places, a bakery, a coffee shop, and more.
You're right near Haverford, Bryn Mawr, Swarthmore, UPenn, Drexel, Temple, and Villanova, all excellent institutions of higher education that yes, you can visit.
There is a hospital nearby.
Philadelphia, which has tons to offer---including art and science and medicine and natural history museums, a zoo, shopping malls, a farmers market, the Italian Market, the Declaration of Independence (yes, the real thing), the Liberty Bell, and about a zillion other things---is a short train ride away. (No, you may not go by yourself.)

Practical stuff: We'll tell you how to get to campus, (planes and trains and buses and cars all work well), what you will want to bring (there is a list), details of internet access, how dietary restrictions are accommodated, what the precise daily schedule is, and more, after you've applied and if you are admitted.

If after reading this whole page you still have questions, please do contact us at .

MathILy, MathILy-Er, and MathILy-EST are projects of the nonprofit organization Mathematical Staircase, Inc..