"Pi" Day is celebrated across the world on March 14 every year.  At Stephen Decatur Middle School, it marks the start of the annual “Pi” celebration in Michelle Hrebik’s seventh grade math class. Above, Hrebik assists Alan Means, left, and Todd Phillips in peeling, coring and slicing an apple for their pie. Below, Hailey Brown, Egor Reznikov, and Addison Cook enjoy their pie with an "e". Submitted Photos