As I have mentioned before, I am working on flipping my French class. I was searching for something I could use to show the kids videos but also assess them to see what they have learned. I think this site would really help me do that.
After an account is created, classes can be made and so can assignments. You can pull videos from Khan Academy, YouTube or LearnZillion and build assignments with them. What a great tool to assess and teach together.
If you are doing a flipped class model or trying to differentiate your instruction, this may be the way to do it. Take a look at this site, it's free, seems easy and probably will do a lot of good for classes.