Lee Elementary School Math Club – Fall 2025

Club leaders: Lily Aaronson and Dana Moshkovitz.

Participants: Kids in fourth and fifth grade at Lee Elementary.

Every meeting is one hour. The meeting typically features a pair of related games, puzzles or magic tricks. Here they are (we update this page as we go):

1. Playing Nim with Pop-Its.

2. Game of 100.

3. I’m thinking of a number between 1 and 100 (binary search).

4. Binary magic trick.

5. 24 Competition.

6. How many numbers can you make with four fours?

7. Can you guarantee a win in Tic-tac-toe?

8. Ultimate Tic-tac-toe.

9. Draw in one stroke a star (easy) or a house (harder).

10. Tour the bridges of Königsberg or the five rooms.

11. The wolf, the sheep and the cabbage.

12. The Tower of Hanoi and Cupcake Academy.

13. Set!