A state-wide strike by NSW public school teachers will proceed next week despite a ruling by the state's industrial commission, the union says.
As many as 60,000 teachers and principals from the state's 2200 public schools could walk off the job for 24 hours next Tuesday.
That's despite a ruling on Monday in the NSW Industrial Relations Commission ordering the union to refrain from taking any industrial action relating to its wage claim.
Teachers Federation president Angelo Gavrielatos says the "strike will proceed".
"The teacher shortages are too large and their cause, uncompetitive salaries and unmanageable workloads, too great for teachers and principals not to proceed with this action," he said in a statement on Tuesday.
NSW is facing "a large and growing shortage of teachers", he said.
The strike will be the first 24-hour stoppage by teachers in a decade.
The union is also stepping up a statewide advertising campaign focused on the failure of the government to address teacher shortages.
Premier Dominic Perrottet said last week he was disappointed about the plan to strike, saying the 2.5 per cent pay rise offer was "fair and reasonable" in circumstances where hundreds of thousands of people across the state had lost their jobs.
The award that determines the salaries and conditions of teachers expires next month.
Australian Associated Press
