In honor of Pi Day (March 14th) and Einstein's birthday, we'll be talking about the awesomeness of that magical ratio, Pi. I'm just going to post a bunch of resources that can be used to plan your own pi day celebration.
Global Math Dept Presentation of Pi Day Activities
Pi Day Activities from the San Francisco Exploratorium
Pi Day Activities from Scholastic
Scientific American Article on the History of Pi
Pi Day Resources from Education Word
Pi Day Resources from NCTM
A playlist of Pi-related videos I created on YouTube:
And here are several Pi Day themed activities. I don't remember where I got these from. If it was you, let me know and I'll be happy to give credit!