"Open-Access Courses: How They Compare
For millions of students worldwide, free, open courseware provides a window, if not a front-row seat, to top university classes. The formats are as varied as the people who tune in. Some consist mainly of lectures recorded on iTunes, while other courses seek to replicate a classroom experience by offering study groups, computer-graded tests, and weekly assignments. And while you might get a badge or certificate showing you mastered the material, you generally won't get direct interaction with the professor, who may have recorded the lectures a few years ago. Here is a look at five introductory economics classes: four through open courseware and one in a traditional classroom. "