Permutations for Kids: Why Every Card Shuffle Is Brand New

The story of permutations for kids: why a well shuffled pack of 52 cards is almost certainly in an order no one has ever held before, and how Dave Bayer and Persi Diaconis studied shuffling in 1992.
• Why seven riffle shuffles are enough to mix a pack properly
• How 52 cards can be ordered in about as many ways as there are atoms in the Milky Way
• How Persi Diaconis went from card tricks with a magician to maths at Harvard
• Quiz questions to answer along the way
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