Very interesting point. My son has very recently started having behavior issues at his playschool. I was surprised that the teacher linked it to the fact that he is intellectually really far beyond the other three year olds. What struck a chord with me in your post was your mention of the kids not getting your daughter's jokes. My son as a surprisingly adult sense of humor, coming up with jokes and observations that are genuinely funny but definitely not something other 3-year-olds would laugh at.
Also... previous comments about gifted schools being places where upper class kids who like to do homework excel (or something like that). Good observation. I could see that description fitting in - to some degree - with the private gifted school we visited. I really am not sure they could handle PG kids any better than a public school. PG kids are just so different in so many ways than kids that schools usually label as gifted.
