The Hippocampus website has scores of flash tutorials in a multitude of topics. This facility is made available to the public at no cost by NROC - the National Repository of Online Courses.
The flash tutorials can also be accessed via a "mini-site" a more student friendly. Here is the example of the Physics lessons available.
The flash interactives contain video and animations, as well as testing you on the materials before you move on to the next portion. They are easy to fast forward and replay. This is a first class resource for students who need assistance.