A couple of years ago I met a male supply teacher in North Norfolk. He told me that when he teaches in primary schools he is often mobbed by the pupils, as he is an example of an increasingly rare breed - the male primary school teacher. David Willetts has drawn attention to this issue by pointing out the male primary school teachers are outnumbered by females by 12 to 1. Perhaps you're thinking this shouldn't matter. I think it does, and for this reason. All academic studies show that for a child to be be brought up in the best possible environment it needs both female and male role models. With so many marriages breaking up and so many children being brought up by lone parents (usually, but not always the mother) some children have hardly any male influences on their lives at all. At least if they have some male teachers that can change.
It seems that men are increasingly put off by poor wages and "paedophile paranoia" according to the Times Educational Supplement. Studies from the US show that boys do better in school when they have male teachers.
I'm not sure what can be done to tackle this growing problem, but it's clearly getting worse.