I completely agree with Michelle O’Malley (Letters, September 18) and others that the examining boards’ decision to change the GCSE grade boundaries midway through the year is unfair, demoralising and damaging for the prospects of students.

A substantial proportion of students received exam grades which were two grades lower than expected because of last-minute changes, with knock-on effects for their A-Levels and other further education options.

One student I know of has not been able to take up his full range of AS-Level choices and has been forced to drop IT in order to retake English. Even if the decision is overturned and his GCSE results improve, he’ll have missed too much of the IT curriculum to pick it up again.

This debacle has also badly affected our hard-working teachers, many of whom say they feel totally undermined, as well as having obvious implications for the colleges expecting to take on certain numbers of students.

They are now struggling to manage the consequences of lower than expected grades.

Any changes to GCSE grade boundaries need to be done with transparency and with notice, so teachers and pupils can work towards the new grade boundaries.

The Welsh Government has launched an urgent investigation and the exam regulator is looking at the issue. Our Government must also be held to account.

These students are not just statistics – they are young people with real concerns about the future.

I have written to the Education Secretary to demand an urgent review of the situation, and join Michelle in urging readers to write to their MP to call on the Government to demand a regrading.

Caroline Lucas, Green MP for Brighton Pavilion