Quote #189,879

"It's an old idea. It's arguably the first way that people learn, that, hey, if you need to learn som..." — Sal Khan

It's an old idea. It's arguably the first way that people learn, that, hey, if you need to learn something, if you're having trouble with it, keep working on it until you master it and then you go to a more advanced concept. But in the education systems that all of us grew up in, we all learned at a fixed pace.
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