“What we found is that the difference between teachers in the bottom 5% and the teachers in the top 5% was something like one grade, a GCSE grade per pupil.”
“If you took all these people out, stopped them teaching the children and just replaced them even with just average teachers, that would be something like half a grade per pupil.”
“So again, if you do eight GCSEs, that would be an extra four grades for them, that they would get, which could be the difference between getting a job and not getting a job, the difference between go…”
