I have no idea who said: "You do not really understand something unless you can explain it to your grandmother." Or, "If you can't explain something to a six-year old, you really don't understand it yourself." It might have been Einstein, but no one knows for sure.
Whoever said it, it's critical to my teaching. If I don't get it, I can't teach it. In order to learn something, I have to imagine that I'm going to teach it.
Whoever said it, it's critical to my teaching. If I don't get it, I can't teach it. In order to learn something, I have to imagine that I'm going to teach it.
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