MathILy 2025 photos

MathILy 2025

Presentation during Opening Meeting

MathILy 2025

Laughter while discussing an example

MathILy 2025

Philadelphia selife

MathILy 2025

10 seconds after the start of MathILy, an entire Root class is at the board at once

MathILy 2025

Daily Gather giver Pavle (MathILy alumn and Jane Streeter) checks in with working students

MathILy 2025

Leo focuses on taking official notes

MathILy 2025

MathILy 2025 walks the Bryn Mawr labyrinth

MathILy 2025

Run out of room on the board? Just mail the proof to yourself on another board.

MathILy 2025

Collaboration in Daily Gather

MathILy 2025

Alex explains an idea

MathILy 2025

Clamp2: Your breakfast is evil if you pour syrups that aren't a sofa...

MathILy 2025

A surprising bifurcation diagram

MathILy 2025

Hannah's Root class

MathILy 2025

Brian's Root class

MathILy 2025

sarah-marie's Root class

MathILy 2025

Working together during Nadav's Daily Gather

MathILy 2025 MathILy 2025

Rotation and reflection redux

MathILy 2025

Fishbox party covers Baby Dietmars

MathILy 2025

Discussion during Daily Gather

MathILy 2025

Week of Chaos collaboration

MathILy 2025

MathILy-Er alumn reunion with LI-Ers

MathILy 2025

Photographs of a selfie

MathILy 2025

Jadon learned to blow a bubble within a bubble

MathILy 2025

Jadon (weeks later) with a multimegabubble

MathILy 2025

Hanging out and playing SET

MathILy 2025

Frida explains an idea

MathILy 2025

Pablo wears Sophia's glasses...

MathILy 2025

...and Evelyn's?...

MathILy 2025

Many discussions during Daily Gather

MathILy 2025

...and Frida's.

MathILy 2025

Five friends love LOVE

MathILy 2025

Playing ping-pong with cell-phone paddles

MathILy 2025

Afternoon soccer

MathILy 2025

The infectious disease modeling class collaborates on coding

MathILy 2025

Lily checks in with a group in Be There or Be Square

MathILy 2025

sarah-marie's Root class accidentally dressed in a rainbow

MathILy 2025

Arjun shares thoughts with Frank

MathILy 2025

Yoyo explains her idea

MathILy 2025

Boardwork from the How to Party Hard class

MathILy 2025

Clark and Narnia simulpresent

MathILy 2025

Undeterred by a fire alarm, Florina continues her proof presentation outdoors

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Miles has a certain... theme... in drawings.

MathILy 2025

Five people (including a Daily Gather visitor) in one tree

MathILy 2025

Piano quintet performance

MathILy 2025

MathILy-Er alumn MathILy students pull out eggs when visiting

MathILy 2025

Darsh makes art near a Diagonal Triangle

MathILy 2025

Living Diagonal Triangle

MathILy 2025

Two working groups in one class

MathILy 2025

STAB YOUR HAND

MathILy 2025

Alumn Will Bender explains his summer research to a Branch class

MathILy 2025

Novel printmaking

MathILy 2025

The culprit(s)

MathILy 2025

Spark and sarah-marie square dance to Dance Squared

MathILy 2025

Fascination with Thomas's origami model

MathILy 2025

J gives a fishbox proof

MathILy 2025

Four hands piano performance

MathILy 2025

Leo, about to finish a Bedtime Stories card pyramid

MathILy 2025

MurderLy Branch class

MathILy 2025

Space Goat Soap Bubbles Branch class

MathILy 2025

Writing at the top of the board

MathILy 2025

Most MathILy 2025 attendees of the 2026 Joint Mathematics Meetings

MathILy 2025

Eelology Branch class

MathILy 2025

Teams contemplating questions in the #overheard game

MathILy 2025

MathILy and MathILy-EST 2025!



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