Well, I'll try to explain without getting to long and detailed. Transition services include assessment and remediation of not just academic skills that may be lacking, but social skills, cognitive processing skills, adjustment to new situations skills, etc. Hearing children learn all of this through passive observation. A deaf child in a mainstream environment can't learn all of these things incidentally, in the same way that a hearing child can. So it includes teaching those skills that they may have missed out on, but people assume they learned just because they were exposed in a hearing environment. It is the teaching not just of how to do something, but why we do it, and how others react to what we do. It is the learning of cultural norms, such as, when you enter college, your parents no longer are able to speak for you, and you must be prepared to advocate for yourself, and then teaching the most effective way to do that.
