If you are viewing these in school, you will need to click on the following link US History Vodcasts to watch the videos. Scroll down and under "categories" click on social studies. You will find the videos located there.
Section 1 - The Red Scare and Politics in the 1920s
Section 2 - Economy of the 1920s
Section 3 - Society in the 1920s
Section 5 Conflict in the 1920s