Four different (and wise) answers.
“What Makes a Great Teacher?” Answered by 4 Great Teachers
Author: Ben Orlin
The Truly Common Core
Math education is succeeding beautifully... for the right definition of "success."
Felt-Tip Geometry
Four beautiful new puzzles.
STEM Academia: The Game
And 20 more of my proudest math cartoons.
The Mystery of the Super Bowl Match-Ups
Four teams. Four probabilities. This shouldn't be that hard... right?
Six new geometry puzzles. How many can you solve?
Catriona Shearer strikes again.
The Game of Snakes
A pencil-and-paper game for the snake-fearing (or snake-loving) mathematician.
Books I Loved in 2019
Thirty favorites (not including the one I wrote).
The Incalculable Joy of Fermi Questions
How many clicks will this post get?
366 Days of Math
The February 29th page is a flowchart for whether you need the February 29th page.
Math with Bad Drawings 