The first coloring results go back to the late 19th century. By 1916, Issai Schur had proved that however you color the positive integers (also known as natural numbers), there will always be a pair ...

Color is complicated, but you can easily learn the difference between a color model, space, and gamut, ... The best method that we have for defining color is by using math.

Just hearing the F word can cause kids (adults too) to freak out. And if you think about it, there are lots of reasons students feel flummoxed by fractions. For one thing, there's the misleading ...