Happy Pi Day! Fellow "Lost" fans please note: for today only, Pi is my constant!
TGI Pi Day - Thank God It's Pi Day shirts & gifts
Completely Irrational, if you love Math or Pi Day, this shirts for you. Check out all our Math shirts!
Pi Day Shirt come to the dark side we have Pi by Destined4Destin on Etsy
Apple Pie Pi Day Shirts
Chicken pot pi | 17 Impossibly Awesome Tees To Celebrate National Pi Day
Pi Day - March 14 birthday shirt
magnum pi Activities for Pi Day On March 14, celebrate a key math concept by using these fun and educational activities across subjects and grades. http://www.educationworld.com/a_curr/more-pi-day-activities.shtml
Sugar Bee Crafts: Celebrate! Happy Pi Day! 3-14
I don't think my Elementary students will know what pi is... but I'm such a math nerd that I find this Pi Day shirt humorous.