Yes Iwas wrong abou t that but don't better schools get more funding the head teacher gets rewarded for good performance?
Not as far as I know, some individual teachers get 'performance related pay', which isn't a reward for doing well, it's a punishment for doing not so well.
As for school funding, the lower performing the school, the more money it generally gets - you don't get more money for been better.
One of the main criteria is the number of children who get free school meals, the school where my wife works doesn't have a nursery class - because not enough children (almost none) get free school meals.
This actually places the school, for perfotmance tables, in the same group as Eaton and other top private schools.