Those have been cut both at the state and federal level, which has an effect on the sort of teaching offered.

ECONOMIST: A quirk of history faces a new challenge

It says the document should be simplified, although some teaching unions have said they fear this could have the effect of watering it down.

BBC: Gove plan to ease expansion for popular schools

According to the report schools which did less well often showed "a lack of clarity about the intended impact of the spending", did not monitor the effect properly and often spent the cash "indiscriminately on teaching assistants".

BBC: Schools could do better with pupil premium, says Ofsted