New edition builds on the widely used prior version—now expanded to 530+ questions, added diagnostics, difficulty ...

Richard Rusczyk, founder of Art of Problem Solving, has a vision for bringing “joyous, beautiful math” — and problem-solving — to classrooms everywhere. When Richard Rusczyk became interested in math ...

As a young math student, Rachel Eng memorized formulas and theorems, but she never learned about the mathematicians who developed them. Nor did she hear about the controversies and dramas that ...

Michael Freedman’s momentous 1981 proof of the four-dimensional Poincaré conjecture was on the verge of being lost. The editors of a new book are trying to save it. One of the most important pieces of ...

Is Oglethorpe University's Bill Shillito right? What does this math problem mean? You love numbers. So do we. Let's nerd out over numbers together. The shared problem follows a now-common formula with ...