joystickjunki3 said:
Your head may in the right place in terms of intention, but boys and girls must learn how to properly interact on a social level if they are to succeed in life. Most of us, if not all, learn this sort of cross-gender social interaction from our school days. And besides, the genders don't learn all that differently from each other as far as I know.
EDIT: Although, I'm plenty willing to amend my statements if proven wrong.
Yeah I agree, my cousin who lives in Ireland went to an all boys Catholic School where as I went to a British mixed school. We both have similar results academically, I have a better Maths grade but he has a better Science, which is the only difference.
On his last visit he admitted that he often did not know how to interact with females, because he had no experience from his school life, where as I have no trouble talking to girls and can hold down relationships.
So my personal opinion is that whilst grades are not going to greatly differ with segregation, the social effects will alter the students attitudes towards the opposite sex, most likely for the worst.
EDIT: Just re-read the OP and read your idea about segregating classes instead of whole schools, now this seems more reasonable. The benefits of added concentration are there but there would still be an opportunity to socialize with opposite genders during breaks.
SORRY FOR THE LONG POST