Pupil premium is additional funding received by the school to address social disadvantage. There is no clear way of measuring social disadvantage, but the government uses free school meals as a proxy measure. This is not to say that any specific family is deemed disadvantaged just because they have ever claimed free school meals, but the higher the overall proportion of familes that have claimed then the more likely the school is to be challenged by disadvantage.
This funding is used to try to diminish differences in performance between disadvantaged children and others. Please see the attached file below for more information on the strategy and use of the school's pupil premium expenditure.