Gone are the days when "30 plus eight equals 38" is the only way to pose a math problem. Now, first-graders are learning that three 10s and eight ones also equal 38. And they are making graphs to ...

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 ...