I often edit the track videos I record while instructing at Thunderhill and then upload them and/or send my student a DVD. I try to make a point of getting at least one session of them driving in a lead-follow so they can see their own line, etc. and if we do an afternoon ride-along, I include that so they can see another version of the line, at speed.
You might have to speed-read a few parts.
Link:
Sarah's Ride-along. on Vimeo
It would be interesting to have the student add notes about what she was thinking at different point along the track. I can just imagine the commentary you guys would offer up.