In particular the assessor's emails focus on the raising of the grade C boundary on the lower tier English exam paper by 10 marks between January and June.

BBC: English GCSE: Senior exam board figure quits AQA

James Blythe, now a student at Oxford, was given a D grade for coursework in his history A-level last year - in contrast to much higher marks for other parts of the exam.

BBC: A-level marking 'grossly unjust'

Head teachers remain convinced that the exam boards need to be investigated over the disputed marks.

BBC: Exam fixing conspiracy denied

Another is to publish the percentage marks scored, or to show the grade gained on each bit of the exam.

ECONOMIST: Exams

More than 38, 000 exam entries in England, Wales and Northern Ireland were regraded after schools asked for re-marks, the exams watchdog Ofqual says.

BBC: Exams: Ofqual reports GCSE and A-level regrades rise

They were also awarded up to a quarter of their marks for their year's schoolwork, instead of staking everything on the final exam, as before.

ECONOMIST: A fillip for South Africa��s schools