One of the most memorable learning tools a course designer can create is a good analogy. Finding parallels between something the student finds mysterious and something else the student finds obvious is more art than science. Fed Chairman Ben Bernanke the other night on Sixty Minutes made a wonderful analogy between bailing out a misbehaving bank and fighting a fire in your neighbor’s house even though it was caused by his own blatant carelessness, given that the fire could spread to your house and indeed to half the town. Another well-known analogy can be drawn between electricity and water in a pipe, where voltage and current are likened to water pressure and water volume. I have been able to come up with a number of good analogies over the years, but I am currently at a loss to explain how to do it or even where to begin other than inspiration. I invite comments regarding your thoughts on how to create good analogies or examples of other good analogies.

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