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 ...

Mathematics has always been one of the most challenging subjects for students of all ages. From simple arithmetic to complex ...

Problem solving is one of today’s top skills—students who apply problem-solving strategies in the classroom are building important talents for college and the workforce. The math classroom is one of ...