EDpuzzle is a fantastic site I just found out about that allows a user to edit/crop a video and "flip" a classroom by adding questions. This is ideal for the Flipped Classroom model where instruction can be given at home and assessing/collaboration/learning can be done in the classroom. A educator can record their own narration over audio of any existing video to help guide learning.
I highly recommend checking out EDpuzzle by clicking here!!!
For my Pinterest board on a Flipped Classroom click here.