Pencil, paper, and a little flash of genius.
This high school math teacher is drawing low-key comparisons to Richard Feynman.
35 of my silliest, stupidest, and most heartfelt math cartoons.
A 9-year-old scrawls an innocent problem... and suddenly 3D surfaces are intersecting in 4D space.
Visually stimulating. Mathematically rich.
Four different (and wise) answers.