Circles, triangles and squares. One of the first things we learn as children are basic geometric shapes. And they stay with us throughout our lives. Maybe it’s that sense of familiarity that makes ...

Compare four sets of pattern blocks. Use pattern blocks to make different shapes. Warm up with a Mystery Math Mistake to tell whether Dotson's 10-frames represent a number less than his focus number.

Hunt for shapes and make familiar objects by putting together several different shapes. Warm up with a Mystery Math Mistake to tell whether Dotson's 10-frames represent a number more than his focus ...

The usual assumption is that such order requires complex causes, like electric charges, chemical reactions and finely tuned interactions between particles. Rodolfo Subert and Marjolein Dijkstra show ...

BOTHELL — One person’s idle doodling is another’s mathematical breakthrough. Two mathematics professors and one of their former students at the University of Washington at Bothell have made a ...

Consider the tiles on a bathroom floor or wall; they’re often arranged in a repeating pattern. But is there a single shape that tiles such a surface — an infinite one — in a pattern that never repeats ...

Take the pressure off of problem-solving with engaging thinking games that encourage students to work together to find ...