[aik]

I definitely agree the problem was multifaceted. I also believe the problem runs very deep at the same time.

Even if the courses were 10 minutes each like Khan, I doubt the view rate would be increased by much in this case.

Also, it is true that there are no immediate and visible penalties for not watching it, though at the same time, being penalized through completely artificial means (chasing artificial targets, aka what happens in school) isn't healthy for anyone and I believe contributes to one of the major problems we're having.

Thirdly, I never was ensured mastery (or even pushed towards it) in any class I ever took. I was ensured a good grade if I jumped through the right hoops just how the teacher wanted it.