Desmos: Free Online Graphing Tool

Desmos has been around for a while now, but it never stops getting better … perhaps you are teaching Calculus and the f’, f”, tests and want to overlay the original function with its two derivatives to teach curve sketching?  Maybe just want your students to appreciate what the a, b, and c coefficients do in a standard quadratic function?  Desmos can do that and more … #nctm #nmctm … Best part yet, it has a Chrome app too, with user accounts …

desmos