'majority of state schools mediocrity is celebrated'
Sorry maypole, but that's bollocks. It depends very much on what 'raw material' the school is getting. Joan talked about value added earlier which, as a measure, is often taken more notice of than actual attainment, in state schools.
I have taught in schools with a high percentage of SEN pupils, lots of kids on free school meals, kids with the most chaotic and difficult home lives, illiterate parents, parent with MH problems, parents with substance misuse problems..... In such schools, yes, 'C' grades can often be celebrated because they will be a huge achievement for many of those pupils in an environment where there will be plenty of students not getting a grade at all. That doesn't mean that expectations are necessarily low. Students are still encouraged to aim high by most of the staff. Even in those schools, there are still A grades but of course they are in the minority.
I have also worked in schools where the intake is very different. Kids who come from stable, loving homes with University-educated parents on good salaries. Very different demographic and very different results. Expectations still high.
I have to say, my personal preference is to work in the rougher schools. Bloody hard work and depressing at times but my goodness, some absolutely superb kids who taught me an awful lot.
maypole What I don't get is that you 'want a school were getting a*
Is the norm and anything below a b is not good enough' and the reason you are getting this is purely because you live in an area where such a state school is available.