In a joint statement, the ministers and unions urged treasurer Jim Chalmers to bring the School Resourcing Standard (SRS) – an estimate as to how much funding an individual school needs – to 100 percent.

“Tuesday’s budget is the opportunity for the federal government to deliver its election commitment to get every school to 100 per cent of its fair funding level,” the statement read.

“Anything less than full funding would be unacceptable to the millions of families who attend public schools.”