An Einstein aperiodic tile has just been discovered. Find out what that means and why it is significant. Plus - play with the tiles. Do you want to tile your shower floor wi...
This puzzle is gorgeous and HUGE!
Ravensburger says that if you spent 2 hours every day putting this puzzle together it would take you a year to finish.
What do you wonder?
Students ...
Bring a little K-pop music to your class with this activity.
Jason Kibbe, a terrific middle school math teacher in Chambersburg, PA, sent us an activity that he created for one of his stude...