Math Monday came early this week, and we had some fun exploring Reuleaux triangles. Next to a circle, they're the simplest curve of constant width you can make, which basically means you can roll a plank on top of them as smoothly as on wheels. The kids didn't expect that one! Details here: www.thefrankes.com Music: "260809 Funky Nurykabe" by spinningmerkaba (CC-BY 3.0) ccmixter.org