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 ...

Encouraging independence at home does not mean leaving children on their own. It means allowing them to make choices and ...

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 ...

Any discussion about collaboration that focuses entirely on the "knowledge worker" risks leaving a lot of employees out of the conversation. What differentiates knowledge work from other forms of work ...

The puzzles look easy, and mostly they are. Given three words “trip,” “house” and “goal,” for example find a fourth that will complete a compound word with each. A minute or so of mental trolling ...