Second in a series. First is here.
The first MOOC I started, Mechanics ReView, was originally developed at MIT as a short three week course for students who didn’t do well in their regular introductory Newtonian Mechanics Course (generally the first college physics course). The instructors devised a method to teach physics problems solving, which they said was proven to work, based on the student improvement in the on campus course and grades in subsequent physics courses. The online course was ten weeks, with eight required units and an optional three more units, and an expectation of about ten hours per week of work.