In this task, you are given an article. Your task is to summarize the article in a sentence.
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Question: Funding can vary by as much as £3,000 per pupil but the government has pledged to even things out.
The Association of School and College Leaders is urging ministers to "grasp the nettle" on fairer school funding.
The Department for Education has said it increased the budgets of the 69 least fairly-funded areas for 2015-16.
Historically, more money has been channelled towards areas that have high levels of social need, with cash targeted towards those in the inner cities and areas of deprivation.
Heads argue the disparity between higher and lower funded areas has been magnified by the pupil premium - money targeted at children from poor backgrounds - with £1,320 per child at primary level and £935 in secondary schools.
Additionally, schools are facing increasing pressures on their budgets because of the rising costs of pensions, national insurance contributions and teachers' pay over the coming years.
Malcolm Trobe, deputy general secretary of the Association of School and College Leaders, told the Times Educational Supplement that England's worst funded schools were "not going to be able to afford to put teachers in front of classes" without additional money.
He adds: "It is essential that fairer funding proposals are brought forward as soon as possible. This issue has gone unresolved for too long and previous governments have failed to grasp the nettle.
"The complexity of introducing a fairer funding formula and the need to phase in the new arrangements mean it must be dealt with early in the Parliament. The opportunity to resolve this issue must not be allowed to slip away once again.
"A new formula should establish a sufficient base level of funding per pupil, with additional funding to reflect disadvantage which incorporates the existing pupil premium.
"To be clear. We are not calling for the end to the pupil premium. Our approach is to have a single deprivation funding stream rather than the two that currently exist - one of which is the pupil premium - as this would lead to a fairer distribution of the funds."
The concern has been raised only days after the new Education Select Committee chairman Ian Carmichael wrote to Education Secretary Nicky Morgan asking when the government would be publishing its plans to shake up school funding.
The DfE has committed to introducing a national funding formula after the next spending review.
And it has put an extra £390m into the schools budget for 2015-16 to increase the per pupil budgets of the 69 least fairly funded areas.
"We are ensuring schools across England are funded fairly so that all pupils, whatever their background and wherever they live in the country, have access to a good education," said a spokesman.
"This is a priority for the government and a key part of our core mission to extend opportunity to all.
"These are complex reforms that we have to get right."

Answer: Huge regional disparities in funding could leave schools without teachers unless they receive some extra money, say head teachers.


Question: Torquay's Josh Rees netted a first-half opener, but Jack Sampson levelled five minutes after half-time.
Dan Butler restored the lead, only for Neill Byrne to equalise soon after and Kristian Dennis put Town in front.
But Iffy Allen scored on his debut to keep Torquay in the competition.
Allen's goal came just two minutes after Macclesfield had gone in front in a game which was re-arranged after the pitch at Plainmoor was deemed unplayable on Saturday.
"I'm happy with the lads' attitude, I'm happy with how hard they worked, how much they put in and the fact that they never gave up," Torquay manager Kevin Nicholson told BBC Radio Devon.
"I'm happy to be in the cup still, I thought with the chances we had we probably could have won it, but a couple of the goals we allowed were terrible defending.
"There are lessons to learn, things to work on, things to be positive about.
"I find it hard to imagine what fans think watching that because it must have been exciting, frustrating and terrorising all at once, and it certainly was for me."

Answer: Torquay United and Macclesfield Town will replay after a 3-3 FA Trophy third round draw Gulls boss Kevin Nicholson described as "exciting, frustrating and terrorising all at once".


Question: Theresa May promised housing would be offered to those in need by Wednesday.
The Grenfell Response Team says 139 formal offers have now been made.
But North Kensington Law Centre, which represents many victims, said some had been offered homes in other towers, other areas, or without enough rooms.
The fire on 14 June killed at least 80 people, although police say the final toll will not be known for many months.
In the aftermath of the tragedy, the prime minister said 158 families would be "found a home nearby" within three weeks, later saying they would be offered "rehousing" within three weeks.
The Grenfell Response Team said that target had now been met.
It said the remaining 19 families did not want to be contacted, or were out of the country.
However, a spokesman for North Kensington Law Centre - which represents more than 100 Grenfell victims - said many of the offers had been unsuitable.
Some of the firm's clients had been offered homes in other high-rise blocks, while some had gone to view a three-bedroom home only to discover it was a two-bedroom flat.
Many had been offered a year-long tenancy and would need to be permanently rehomed afterwards.
Many victims were "concerned the decision they make now could affect their long-term tenancy", he added.
"Doing that from a hotel room is difficult at the best of times, let alone when you are fairly traumatised."
He added: "These people do have various complex issues.
"We are dealing with very traumatised people, we have a limited housing stock, we are working to a tight schedule and there is also a sense of scepticism among some residents."
Only three of the firm's clients had accepted accommodation offers, he added.
Connie Cullen, from the homelessness charity Shelter, said people had often been unsure whether to take up residency agreements.
"It is often very difficult for people to know what the offer they are being offered means. So how long they might be there, what terms they are on, what rent they are paying.
"We are keen to see people offered like-for-like tenancies, housing and rent, so people retain the same security of tenure that they had before."
Ms Cullen said the demand for social housing following the fire was "unprecedented" but had highlighted a general lack of affordable housing in the area.
One tenant from the 10th floor of Grenfell Tower, who only gave his name as Antonio, is among those who has turned down the offer of temporary accommodation.
"We want to move to permanent accommodation so we can remake it and then we can call it home," he told BBC Radio 5 live.
In other developments:
It comes amid growing pressure for Sir Martin Moore-Bick - the judge leading the inquiry into the fire - to stand down.
Earlier, Labour's Emma Dent Coad, MP for Kensington, said he was "a technocrat" who lacked "credibility" with victims.
She said she had spoken to hundreds of people affected by the fire who were unhappy with Sir Martin's appointment.
On Monday, lawyers representing some of the families also called for him to quit.
Labour leader Jeremy Corbyn stopped short of demanding his resignation, but said he should "listen to residents", while Mayor of London Sadiq Khan warned he must urgently improve relations with the area.
But one senior minister, Lord Chancellor David Lidington, said he had "complete confidence" in Sir Martin, whom he believed would lead the inquiry "with impartiality and a determination to get to the truth and see justice done".
Former Lord Chief Justice for England and Wales, Lord Judge, also defended claims that Sir Martin was a "technocrat", saying it was his job to look at the evidence "unemotionally".
"He can't come and make an emotional finding. He's got to look at the facts and decide what happened," he told BBC Radio 4's PM programme.
"That does not mean he's unaware of the emotional impact on those who were involved in it, but a judge can't make emotional decisions."
On Sunday, Labour MP David Lammy said a "white, upper-middle class man" who had "never" visited a tower block housing estate should not have been appointed.
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Answer:
All Grenfell Tower fire survivors who want to be rehoused have been offered temporary accommodation, officials say, but only nine offers have been accepted and many are still in hotels.


