If there are nine people in a room and every person shakes hands exactly once with each of the other people, how many handshakes will there be? How can you prove your answer is correct using a model ...

Shari Bye's doctoral dissertation focuses on students and "non-routine" problem solving, in which the student focuses on reasoning, not just memorization. When a problem is presented, solvers must ...

A problem doesn't last a lifetime. But how you deal with it can make it linger for years without resolution. In my studies about the topic, I've identified that, in addition to everything that ...