Crash Course! Six awesome courses in one awesome channel: John Green teaches you US History and Hank Green teaches you Chemistry. Check out the playlists for past courses in World History, Biology, Literature, and Ecology.
These engaging video shorts detail various events and time periods of world history. They move fast so they often leave the students with questions, which is what we want. A great tool for introducing or reviewing a unit.
Race, Class, and Gender in To Kill a Mockingbird: Crash Course Literatur...A wonderful book. Any of the Crash Course videos are good starting points or wrap up destinations. They are good way to spark further discussion or to summarize the piece.