Sort of meshes with a typical college course. At MIT courses are measured in hours of work per week including lectures, recitations, readings and problem sets. A course is typically 9-15 hours with course total of 40-50 recommended per semester. That that would work out to 130 to 210 hours of work per course, roughly the hundred hour rule. I found I really didnt master a course until using the material in another course or future research or teaching the course as a TA.<p>P.S. The course hours is often a wildly inaccurate estimate. People might have a challenging lab course where put in twice the recommended hours. Or they let assignments pile up until the final weeks, working 100 hour weeks in December or May.