As you celebrate the United State's Independence Day, why not take the time to learn a little more about the country? Here are some free, non-credit opencourseware classes about America:

Introduction to the American Political Process - This MIT course helps students understand the basics of the American government.

The Constitution: That Delicate Balance - Check out this video series from Learner.org to discover the history and principles behind the constitution.

American Presidents Video Series - Learn more about american presidents by viewing this video series from WGBH.

Happy learning.