Can you solve the elementary school problem that divided the internet in less than 30 seconds? Test your might in this ...

Imagine Jo: Everyone in Jo's life recognizes her as an outstanding problem solver. She's the type of person who seems capable ...

For decades, many students have sat in math classes wondering when they will ever use the lessons they are learning in real ...

A movement to help students understand rather than memorize has had sprawling effects, including pushback on teaching methods ...

Puzzle 1: You are given nine gold coins that look identical. You are told that one of them is fake, and that this coin weighs ...