The roughly £9bn unveiled in budget expected to disappear rapidly due to rising costs and years of underinvestment

Schools in England are to get a multibillion-pound injection of funding, with extra money for children with special educational needs, but experts have said it will be rapidly swallowed up by rising costs and much more will be needed after years of underinvestment.

Among a raft of measures designed to show the government’s commitment to education, the chancellor, Rachel Reeves, announced £6.7bn in capital investment for next year, which she said was a 19% real-terms increase on this year’s settlement.