Parents could expect further disruption when school returns next year if the government fails to meet teachers and principals demands for better salaries and work conditions.

"Teacher shortages will continue to cause massive disruption for our students in their learning.

"We are calling on the Premier to act immediately to address two fundamental issues that impact on teacher supply and therefor address teacher shortages - and that's to address salaries and working conditions of teachers," Mr Rajendra said.

Thousands of teachers walked out for 24 hours on December 8 as news figures showed the number of vacant teaching positions in NSW had increased to 3000.

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Of those, at least 79 vacancies are in the Illawarra - Wollongong High School has the most vacancies (five) followed by Dapto Public, Mount Warrigal Public and Albion Park Rail Public all short four teachers.

On that day Woonona-based Mr Rahendra said he hoped the parents, teachers and students would not face further disturbances next year.

"it is the government's responsibility to ensure there is a qualified teacher in front of every classroom across the state and they are not fulfilling their responsibilities and obligations in this area," he said.

"it is still not too late for them to step up to the plate."

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