How to safely reopen offices, schools and other public spaces while keeping people six feet apart comes down to a question mathematicians have been studying for centuries. Sphere packing might seem ...

Want to learn more? Sign up for a free five-week email mini-course full of research-backed strategies to help students make sense of math. In Sarah Cuddihy’s 1st grade class at Driscoll School here, ...

Ciera Paul remixed "Formation" to teach a geometry lesson to her students. — -- One Louisiana teacher is helping her students get their grades in "formation" with a little help from Beyoncé.