South Australian Liberal leader Steven Marshall signed up to a dud deal for South Australian students, says Australian Greens spokesperson for Schools Senator Penny Wright.
"Steven Marshall has abandoned SA schools and is seriously risking the economic future of this state," Senator Wright said.
"Investing in our students is the best investment we can make for South Australia.
"Mr Marshall lacks the courage his Liberal colleagues in New South Wales, Tasmania and Victoria have all been able to find, to say they care about the future of our kids more than they care about internal Liberal politics.
"Mr Marshall has put the interests of Prime Minister Abbott and Christopher Pyne ahead of the needs of South Australian students.
"The only unity ticket in education is Mr Marshall's deal with his buddies in Canberra to tear up the six-year school funding deal.
"Because of Mr Marshall's failure to look out for South Australia first, our schools will only get one third of the money they need.
"This will leave South Australia behind the game, because the best economic investment we can make is in ensuring every South Aussie kid is getting a world-class education."
The Australian Education Union today revealed a letter from Mr Marshall confirming he would not deliver the full Gonski funding package, leaving SA $300m worse off.