Comment on Khan of Khan Academy at TED (video)parentComments−bradleyt15yWhat's nice is that if the Khan academy system were implemented universally, you would have known right away that you lacked the mathematical background you needed.−pjscott15yDependency graphs are really nice things to know explicitly.
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What's nice is that if the Khan academy system were implemented universally, you would have known right away that you lacked the mathematical background you needed.
Dependency graphs are really nice things to know explicitly.