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chem21st
searching PlanetScale…
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by
chem21st
15y ago
I never said that you "can't explain things" with video. I said that your videos work very well for review. The medium has changed, but you're doing the same thing that has always been done. If the goal is to get past a test or quiz, then I
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by
chem21st
15y ago
Sal, The only thing novel about Khan Academy is accessibility. Its the same old teacher-centered lectures we've endured for the past hundred years, with a somewhat more charismatic instructor. Most of the criticism I've seen of your work is