It's an interesting observation that in dc's year 4 top maths set, only 8 out of 22 are girls. I'm now wondering what the girl: boy ratio is in other primary schools and into secondary school. I know that, for whatever the reasons may be, by the time they get to the end of secondary it is very unbalanced, but I was surprised to see such imbalance so early on in primary school.
What are you observations wrt maths and the gender gap, what do you think?