Michael Barry, the headteacher of St Matthew Academy in Blackheath, London, tells ITV News that Ofqual's findings have "tarnished the teaching profession" and says the body should have resolved the issue by re-grading the GCSE English exams.
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Further rain will then arrive into southeast England through the latter part of the afternoon and evening.
The Prime Minister said the numbers ‘may’ come down in ‘some sectors’ under the Conservatives’ points-based system.
The warnings and alerts cover most of England.