TUC 2012: Teachers' union NASUWT warned yesterday that Con-Dem austerity risked making educational opportunity the preserve of the rich.
Moving a motion at TUC Congress, the union said coalition cuts and education reform were stifling children's aspiration.
General secretary Chris Keates said Britain's future economic prospects relied on education workers.
"Our prospects depend upon a state education service that supports all learners to make the most of their skills, talents and potential and strives to transform the life chances of all children and young people.
"The government's education, social and economic policies are stifling rather than supporting the aspiration and entitlement of working-class children and young people."
The motion also called on Congress to support teachers taking industrial action to defend young people.