At first glance, the class might not seem relevant to them. But like math, square dancing depends on dancers performing actions based on definitions, Schmitz explained.

Square Root Day is a reminder that math is all around us, says Terrence Blackman, chair of the mathematics department at Medgar Evers College in the City University of New York.

Math Puzzle: Build a Square. By Heinrich Hemme. Divide this figure into three parts that can be arranged into a square. The parts must not be folded over to make their current back the front, ...