A £1.3bn cash injection into 'does not go far enough' to secure the future of Oxfordshire's struggling schools, campaigners have said.

The major investment announced last week by the Government and designed to ease the pressure on school budgets has been criticised as just a 'reshuffling' of money.

Helen Brockett, of campaign group Fair Funding for All Schools Oxfordshire, said the fight was not over yet to secure more funding for the county's schools.

The Abingdon mum-of-one said: "It still does not seem to be enough, because it is not as if a new pot of money has been created, it is just a reshuffling of the funds they have from different initiatives.

"We are just trying to reignite everything after the lull over the summer holidays.

"There is the autumn budget coming up in November and we will be lobbying our MPs to increase the amount of funding for education."

The £1.3bn was announced as part of a new funding formula, designed to end historic disparities which saw schools in some parts of England receive much more than those in other areas.

Historically Oxfordshire has been one of the worst-funded.

Education Secretary Justine Greening said the £1.3bn would mean up to three per cent more funding per pupil for underfunded schools, and a 0.5 per cent per pupil cash increase for every school.

Department of Education spokeswoman Sophie Hood added: "Under the new formula, Oxfordshire will receive a three per cent increase for its schools, which is more than £10m."

Campaigners have warned that rising financial pressures could cost schools in Oxfordshire more than £30m by 2019.

They had previously warned that the funding formula, while giving schools more money, would not keep up with rising costs.

Although it appears Oxfordshire has done 'reasonably well' compared with other shire counties, Oxfordshire county councillor and education expert Professor John Howson said there were other disappointments which have come from the Government's announcement.

He added: "The bad news is at some point or other there will have to be a significant pay rise to ensure we can staff our schools.

"The biggest disappointment is that the Government has not done anything about the area costs.

"Because we fall out of the London area [where teachers receive extra pay], the Government never looks at the high cost areas like Cambridge and Oxford.

"It fails to recognise the high cost of house prices here.

"This is of course going to put pressure on school budgets."

Mr Howson added that schools have had difficulties recruiting teachers, which he said the new cash boost will not address.

He added: "I can guarantee in 2018 there will not be enough physics teachers – and this is a really important subject.

"We have a large number of independent schools in Oxford, so that is a double whammy for our state schools, because they are able to offer teachers whatever wage they like, thus attracting those heavily sought after physics teachers."