Re: Student Selectively Learning
Basically, "what they said." I'd like to reinforce the idea that for some folks, just getting on the mat is a challenge. This might not apply to Robert, but not knowing his history outside of class you have to consider it as a possibility. I've trained with people I was pretty sure fit within the Autism spectrum and all I can say is that is one more aspect of our training: learning to work with different personalities and rather than putting our frustrations ahead of their personal situation (whatever it might be), learning instead to keep centered and maintaining a happy atmosphere of learning. Some people learn things in different orders; perhaps over time the areas you're describing will get better.
You said he isn't interested in learning the "crazy" ukemi, testing, or Japanese terms. Does he give specific reasons why?