Visit the Khan Academy (www.khanacademy.org) to learn more about a growing list of online course materials posted on YouTube. Salman Khan started this nonprofit organization with the aim of making education freely available to anyone who wants it, at any time. Courses are arranged as “playlists” and students are encouraged to start from the beginning unless they need a quick refresher on a specific topic. Choose a course that you have already taken, look over the list of topics, and watch the first video.

a. What technologies does the course rely on?

b. How does this approach to online courses compare with MIT’s open courseware?