This three puzzle offering is in "celebration" of March 14, Pi Day. All three puzzles can be done by seventh graders through seniors, though the younger students might be best working in groups on the crossword. The math required for the Math Pi History is just adding and subtracting whole numbers . . . though since I'd LIKE them to be done MENTALLY even seniors can get something out of it. I HAVE given instructions as to how to do them mentally. All three puzzles are foot off of the accelerator activities BUT students will still learn a lot!