Shannon, welcome to the board! So sorry to hear your son is struggling so much. Have you thought about getting counseling for your son? Perhaps the school would provide as a support? I've read stories from adults with CAPD how it made them feel so insecure because they were unsure of what they were or weren't hearing, and asking what continuously makes them look "stupid." So perhaps a third party talking to your son, one who could understand the feelings of isolation, might be helpful.

Also, does your son use an FM system in school, or maybe some sort of ear amplifier? There are ear amplifier's I've seen that look like cell phone headsets. Perhaps something like this will make it easier to hear in the classes that go too fast.

Finally, the auditory system is not fully developed until 21-22 years of age, so he might consider trying some of the therapies that have helped others. Enlisten might be a good choice since it's a listening therapy that can be done at home. I know somebody who administers Enlisten, and he has found it extremely helpful for APD. Our son has done AIT, which helped a lot, but around November we're also going to do Enlisten.

Hope this helps,
Bonnie