Hundreds of pubic school support staff will walk off the job tomorrow to rally against cuts to the education budget.
Education assistants, Aboriginal and Islander education officers, cleaners and gardeners will rally at Parliament House at 12.30pm.
Premier Colin Barnett is the target of the rage of education assistants, who were told last month that 350 of their number would lose their jobs in a shake-up of school funding.
United Voice secretary Carolyn Smith said members had no choice but to take industrial action.
"Previous budget cuts have left our schools in a situation where there is just no more room to cut," she said. "Education assistants are going to take to the steps of Parliament House to send Premier Barnett and Minister Collier a clear message.
“It will impact on classrooms, and this is not a decision they take lightly.
"The children of WA deserve quality education."
Under the State Government changes to school funding, money for support programs will be reduced by an average of 30 per cent next year.
Schools will also be charged a new levy to cover long-service leave liability.The Education Department has told schools the changes are necessary to achieve a more equitable funding model in 2015.