Prezi is a great alternative to using Powerpoint or other standard presentation lectures in your class. It is a cloud-based software that creates interesting, fluid, and animated presentations that will keep your students' attention. I have had great success with using these presentations in class.
If you want to see a SHORTENED, preview version of the presentation in order to get a sense of the animation, copy and paste the following link into your address bar:
This particular Prezi provides background context for a study of F. Scott Fitzgerald's The Great Gatsby. The presentation defines many cultural elements of the Roaring Twenties, such as prohibition, the birth of consumer culture and the rise of the new woman. It also relates this elements to F. Scott Fitzerald and his book.