This song is a catchy way to remember the Pythagorean Theorem and the criteria for what makes a right triangle. Also mentioned are some sample measurements of a right triangle, and the important terminology surrounding right triangles (leg, hypotenuse, square root, etc). The song uses popular tunes and math-oriented lyrics, and would be useful as an introduction or review tool during a lesson on the Pythagorean Theorem and right triangles. I also have the lyrics to this song available as a PD