The value of traditional CMA is the "teaching system", I try to explain it in BGQ.
part 1
http://tw.youtube.com/watch?v=Mnk6LKpy05k
part 2
http://tw.youtube.com/watch?v=fUYXkl0ioW8
part 3
http://tw.youtube.com/watch?v=1UB7TrH9gGU
part 4
http://tw.youtube.com/watch?v=G84V3YtFuSo