Heather Crossin learned of Common Core in the fall of 2011 when her daughter brought home a math book linked to the standards that she found to be weaker than the previous textbook.

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Tip to laid-off bankers: Crack a math book.

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And his most recent book is The Math Instinct: Why You're a Mathematical Genius Along With Lobsters, Birds, Cats and Dogs.

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The robot takes the huge order, has a look at the order book, looks at the recent flow of trading, does some math and starts slipping bits of the order out into the market in digestible pieces.

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