Mentor program

One thing with home study programs, is I know people who are interested in martial arts, but can't make regular classes (going to college, etc.) Well, one thing is it would be good if I perhaps in a home study program someone who was advanced could help them with material, then they would test by video. One thing I was thinking, is it would be easier to give someone a video tape of the form first, then teach them because then they would be more familiar with it.