It was once the go-to gizmo for high school math whizzes who prided themselves on their ability to turn complex equations into artsy graphs on a black-and-green screen. But 25 years after the ...

For the last 25 years, my professional life has been devoted to teaching math. I’ve taught math to students in grades 6–8 as well as high school geometry, and I have loved every moment of it. For the ...

It’s an art competition unlike most others. Contestants must use a graphing calculator and “draw” every line, curve, shade and highlight with an equation. One entry looks like an animation straight ...