What does debugging a program look like?

I was debugging with a friend who’s a relatively new programmer yesterday, and showed them a few debugging tips. Then I was thinking about it this morning, and mentioned on Twitter that I’d never seen a really good guide to debugging your code. (also, there are a ton of really great replies by Anne Ogborn to that tweet if you are interested in debugging tips) Of course, my delightful Twitter followers gave me a lot of helpful answers and now I have a few ideas about how to teach debugging skill...

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