Since high schools typically offer classes at various levels of difficulty, for example advanced placement, honors, and "college-prep", I think they do a better job of serving gifted children than middle schools such as mine, which has no grouping for any subject except math. That's part of the "middle school philosophy". When I went to junior high school, academic subjects had grouping from grade 7 on.

"To see what is in front of one's nose needs a constant struggle." - George Orwell