The full letter which head teacher Simon Spiers sent to Michael Gove.
Ten more free schools won government approval to launch in the region today. They will open in 2014.
In some counties, the percentage of academies is more than 50 per cent. How does this affect schools still run by local authorities?
The education Secretary Michael Gove will be at Brighton College in Sussex later to give the keynote speech at a conference about schooling.
Parents opposed to plans to transform the nearby Hove Park secondary into an academy have said they'll protest outside the event.
Video. A leading head teacher, who has embraced many of the government's new education policies, is criticising the Education Secretary over last minute changes to rules over GCSE exams.
Simon Spiers, of King Alfred's Academy at Wantage in Oxfordshire, has written a scathing letter to Michael Gove. He says the changes will cause chaos and affect his school's results - and has hit back at claims that schools are "gaming" the exam system.
But the government says the changes are in the best interests of students.
Christine Alsford has this exclusive report.
The Conservative Education Secretary Michael Gove told Daybreak that UKIP's success in the Eastleigh by-election is purely down to "protest."
He said: "People from Lib Democrat ranks and Conservative, were voting UKIP because they wanted to register a sense of pain and frustration at a difficult time for the country."
Education Secretary Michael Gove has criticised school standards in East Sussex and says more there need to be turned into academies. But East Sussex County Council says his comments are unfounded and have challenged him to meet them face-to-face. The local authority's statement is below.
“We continue to be puzzled by this inaccurate criticism of our attitude to academy status and are surprised the Secretary of State continues to make it. We would welcome the opportunity to give Mr Gove an up-to-date briefing in person so that he can understand the position in East Sussexbetter. Almost half of our secondary schools (11 out of 26) are now academies, and we are co-sponsors of three secondary academies in Hastings and Eastbourne.
– Cllr Nick Bennett, Lead Member for Learning & School Effectiveness, East Sussex County Council
Also, last year, together with the Department for Education, we brokered sponsors for four primary academies. In addition to this we have been in close dialogue with Govt officials, and a number of potential sponsors, about a number of under-performing schools and academy status. So it is simply not accurate for the Govt to suggest we are resistant to schools becoming academies.”
The Education Secretary Michael Gove spoke exclusively to our Social Affairs Correspondent Christine Alsford about academies. The Government's academy programme initially targeted successful schools - but now those failing to meet government targets are often becoming academies too.
A year ago Heyworth Primary School in Hayward's Heath in West Sussex was ordered to become an academy. A local secondary school was brought in to help as a sponsor. A year on - exam results are up and applications for the school have increased by more than 30 per cent.
Our social affairs correspondent Christine Alsford went to visit. She spoke to Steve Davis, the headteacher of the newly named Warden Park Primary Academy, the chief executive of the sponsoring Warden Park Academy Trust, Steve Johnson - and the proud pupils.