Early years and sixth form funding are due to be protected under the plans.
Jonathan Godfrey, Hereford Sixth Form College principal, said some colleges would become "financially unviable".
"It's limited what you can do here, particularly in the sixth form, " he said.
"We don't have the capacity of a standard normal sixth form in central Salisbury, " he said.
School friends from The Burgate School and Sixth Form in Fordingbridge also set up a Facebook page.
Bad weather meant morning assembly was cancelled at Trinity High School and Sixth Form Centre in Redditch.
By the time they leave the sixth form we have encouraged them to become very individual learners.
By 2015, schools will have to eventually offer 24 subjects in fifth form and 27 in sixth form.
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It would instead become a stand-alone qualification, taken alongside full A-levels after two years in the sixth form.
Nicola Watson, principal of Scarborough Sixth Form College, said the fund should really be called an "improvement fund".
On the published figures, further education and sixth form colleges did account for most of the worst performers.
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James Kewin of the Sixth Form Colleges Association told BBC News that his members would be particularly badly affected.
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Instead, there is a heroic statue of Josiah Wedgwood, a buzzing university campus and a new Sixth Form Centre.
The advantage of taking GCSEs in Y10 is that pupils at Colyton spend three years in the sixth form.
The Sixth Form Colleges' Forum said it was concerned about a reduction in Entitlement Funding which pays for extra-curricular activities.
We are in the worst-funded part of the education world and sixth form colleges in particular suffer other educational inequalities.
BBC: Sixth-form funding dip 'could stymie' talent, Gove warned
Most sixth forms also offer students far greater freedom in the sixth form than they had lower down the school.
Sixth form colleges already provide a similar variety for students doing some A-levels and some GCSEs at the same time.
Dr Huppert asked the Mr Alexander about the VAT paid by sixth form colleges and further education colleges in 2012.
Kwame, a sixth form student at Forest Hill School, had moved from Ghana to London 10 years ago, Mr Ofosu-Asare said.
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This includes Brynmawr Foundation School which challenged the council's plans to close its sixth form at judicial review earlier this year.
He said he will give schools temporary flexibility on how many subjects they need to offer at GCSE and in sixth form.
BBC: Education minister says school closures may be necessary
The changes to A-levels were intended to broaden the sixth form curriculum, to stop students specialising too early, typically in three subjects.
Many universities base their offers of places to students on the results of AS-levels which are taken in the first year of sixth form study.
While Rae was at Westminster the number of pupils increased by a third and girls were successfully integrated into the sixth form.
She says the school could quadruple its existing number of 35 sixth form students, which would massively improve its financial situation through funding.
He said the three year sixth form enabled them to deliver a "very much broader curriculum, we are not just delivering the specification".
Mr Robertson said he could have written a better case for atheism and described most of the arguments as "sixth form schoolboy variety".
He had been at a sixth form party before leaving with two school friends to pick up some food and cigarettes from a garage.
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Two sixth form students and a teacher from the Isle of Man have returned from a two-week educational trip to Nasa in Houston, Texas.
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