They won't do any assessments prior to the meeting, correct? I would not hand over the assessments at this point. You could consider taking a copy of the key sections to show, but not hand over. And of course, you can tell them about the WISC if they start heading down that road.

Is there a reason you have not wanted to share the WISC scores with them? (Not handing over, but showing.) I wonder how much of the behavior could be exacerbated by the lack of gifted accommodations... and also am wondering if this group would read anything on that subject.

Good luck!