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seen Oct 27 '09 at 7:57

comment Alternatives to pi day
My high school students enjoy learning about Fibonacci sequences since they are generated from "seeds," and are not just a string of numbers like pi (yeah, I know the deeper significance) the sequences occur in nature and are therefore "warmer," "more real" and less abstract than geometric shapes. They also like learning about checksums on credit/debit cards, but I can't think of a way to make a holiday about that. And they like learning at a general level about how music is transformed into bits on their iPods, but Fourier transforms and DFTs also seem unlikely holiday material.