The Coffee-Milk Mixture Problem Revisited

  • The Coffee-Milk Mixture Problem Revisited

    Charles F. Marion
    Recently, I had occasion to re-read George Pólya’s (1957) classic work on problem solving in mathematics, How to Solve It. Early in the book, Pólya describes the different phases of problem solving, including the fourth and final phase—“looking back.” Describing that phase, he writes:
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