I think the below link led to an excellent video too but I also noted that
it started and ended with praise for the Khan videos, just not for
clearing up misconceptions.
It is also worth noting that Khan does not claim to have come up with the
ideas for all of the 2000+ videos.
Alex. F. Burr
In a message dated 4/8/2012 4:55:27 P.M. Mountain Daylight Time,
ajm@csupomona.edu writes: