This is partly in response to a comment on another forum with someone saying that in our lea there is an all girls state school that perform better in league tables than theirs (and disproportionately with levels of deprivation pupils come from) but the girls in the mixed comp outperform the girls in the single sex school.
With two sons and daughters each, I can see the same trend with all except eldest son who doesn't mind revising and less time to go out with friends (though we make sure he has a 'life' out of school as well). Girls have been outperforming boys at all levels of curriculum for about a decade.
Personally I blame it on the teaching styles used that obviously suit girls more than boys. No surprise when 99% of primary teachers are women, at the most formative stage of a child's life, and secondaries seem heading the same way. Also our secondary has much more boys on disciplinary records than girls, so whether they all deserve to be or the school take a heavier handed approach to boys, there is something different about how they are being treated. Or is there another plausible reason boys find it harder so I can prevent mine having a similar fate?