Have you heard of TED Ed? It is a free resource of educational animated videos for teaching and learning. The purpose of this initiative is to help teachers to either "flip" their classroom or make their teaching more self-directed for their students. Check out the video below to learn more....in true "flip" style.
The site has many tools for teachers including how to assign the videos, include a quiz to determine if students learned the information, and find out which students have watched the video....plus a lot more!