Last year's first place winner. See entry on Photograzing »

Pi Day is a day to honor 3.141592..., our friend π, and there's no better way to celebrate than by eating its homophone pie. Math geeks and pie lovers come together on 3/14, and if you're really geeky, you eat your pie at exactly 1:59.

We're teaming up with the crafty folks of Instructables again for another Pi Day Baking Challenge. All you have to do is bake a pie to enter to win an iPad (er, piPad) and many other great prizes!

How to enter: Submit a photo or video that involves your pie here. The submission must be published by March 19, 2012 at 11:59 p.m. PT. Upon publishing your pie, you'll see checkboxes for open contests. Select the "Pi Day Pie Challenge." Just hold tight—it takes one full business day (M-F) for the submission to be accepted, but what matters is the submission time, not the acceptance time. A panel of judges will rate the finalists and determine the winners.

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