The advantage of learning from MOOC mistakes

In general, the completion rate is about 10 percent, but it climbs considerably for students who show some indication that they plan to do the work. For those students who submit the first assignment, the completion rate is 45 percent.

“I normally teach 400 students,” said Andrew Ng, Coursera’s other co-founder. The associate professor of computer science at Stanford University told The New York Times nearly two years ago that he had just taught an online course with 100,000 students. “To reach that many students before,” he said, “I would have had to teach my normal Stanford class for 250 years.”