Teaching is Compression

Lauren Ipsum:

The second type of teaching is a form of compression, making things easier to understand. I don't mean simply eliding details, or making your proofs more terse. I mean compression in the time it takes to explain an idea and its implications.

Computer science is hard. Logic is hard. And that's fine. But if we leave this world as complicated as we found it then we've failed to do our jobs. Think about it this way: if the next generation learns at the same speed as yours, they won't have time to move beyond you. Type II teaching is what enables Type I progress.

Physics went through a period of compression in the middle of the last century. Richard Feynman's reputation wasn't built on discovering new particles or laws of nature, but for discovering better ways to reason about what we already knew. [1] Mathematics has gone though several rebuilding periods. That's why you can pick up a child's math book today and find negative numbers, the square root of two, and many cheerful facts about the square of the hypotenuse. Every one of those mundane ideas was once the hardest problem in the world. My word, people died in arguments over the Pythagorean Theorem. Now we teach it to kids in a half hour. If that's not progress I don't know what is.

Posted by Jim Zellmer at October 5, 2012 2:24 AM
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