What a nightmare! At our last conference all teachers involved said DS7 would have had an easier year socially if he'd Grade skipped completely not just by Subject. We didn't push for it last year, but at least the teachers figured that it's not easy for these Gifted kids to mix with same age peers. To completely lack comprehension of this, as your DS's teacher seems to have, suggests that she/he must lack social skills themselves - empathy for instance! Good Luck with trying H.S.