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 ...

Across the nation, kids are heading back to school. It’s an exciting time. I remember both the joy and the nervousness that came with my now twin 13-year-olds' first starting school. In fact, one day ...

Some readers may solve the problem procedurally: line up the two numbers, add the ones column, carry the one, and add the tens to get 43. Others might instead notice a creative shortcut: 29 + 14 is ...