These videos are from Rick Green of patiotacademy.com and wallbuilderslive.com. They are from his Constitution Alive class.
Here is Week #1: an Introduction to the Constitution
Week #2: The Seeds of Liberty, about the Founding Fathers and the Declaration of Independence, which lay the foundation for the Constitution.
Week #3: A 30,000 Feet Overview. In this video you learn briefly what each article and some of the 27 amendments are about.
Week #4 Congress Parts 1 and 2