Comment not just "online" (Score 1) 215
I studied actuarial science; a field with some of the most difficult credentials to obtain. The head of the department dedicated all class time to flip through pages and pages of formulas all while occasionally explaining what the left hand side did, and what the right hand side did and why they were equal. He used to have students stand up and "draw" the charts or timelines in the air or he would draw them on the wall with his finger. I think his approach matched the field - you have to be self motivated and willing to study on your own to succeed. Kinda makes me wonder what his job really was...
Distinguishing the highly motivated folks from the less motivated isn't something native to online courses.