Posted on Monday 13th Jul 2020
A grassroots group of more than 5,000 heads is warning it is "neither realistic nor workable" to catch up in full by next summer.
They are calling for reduced content or to have some "open book" exams where students can use text books.
The exam watchdog Ofqual has suggested removing some practical parts of exams.
West Sussex head teacher Jules White is the organiser of the Worth Less? campaign group, which originally formed over school funding shortages.
The network of heads is now raising concerns about trying to run next year's exams with few changes, when many pupils have been out of school for so long and when there is the risk of more disruption from local lockdowns.
11/12/20Covid-19 tests for secondary school pupils in parts of London, Kent and Essex
Mass testing will be rolled out to secondary school children in the worst-affected areas of London, Kent and Essex, the health secretary has said.
10/12/20Covid: Schools in England can close for Christmas a day early
Schools in England will be allowed to close a day early for Christmas to give teachers "a proper break" from identifying potential Covid-19 cases.
03/12/20Top teacher wins $1m and gives half away
A teacher from a village school in India, praised for improving the education of girls, has won this year's Global Teacher Prize.
30/11/20Will schools shut a week early this Christmas term over fears of Covid-19 isolating?
Will schools shut a week early this Christmas term over fears of Covid-19 isolating? Kent head teachers have their say
13/10/20Students to be given more time to prepare for 2021 exams
Exams will go ahead next summer, underpinned by contingencies for all possible scenarios.