Negotiations on a new Enterprise Bargaining Agreement at the Launceston Grammar School resume on Tuesday against a background of staff unrest and a threat of industrial action.
The Independent Education Union was granted orders by the Fair Work Commission on Friday which allows a ballot on protected industrial action at the 174-year-old school.
Last month teachers voted in favour of a motion of no-confidence in the Headmaster Richard Ford citing a lack of consultation about widespread changes.
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A majority of the teachers wanted to see the headmaster removed by the school board.
However, the chairman of the Launceston Grammar board Nigel Bailey and the Bishop of Tasmania Richard Condie have backed Mr Ford.
On Tuesday it is expected an improved EBA offer will be presented to staff which could give teachers remuneration similar to teachers at leading Tasmanian independent schools.
The IEU says teachers are presently paid less than government school teachers.
A mass meeting of staff will be held on Wednesday evening.
The IEU, which has significantly increased membership at the school, expects further motions calling for the board to remove the headmaster may be put forward and a ballot for protected industrial action.
Last week a former teacher of the school, Doug Gurbert, shared his concerns about the direction of the school under Mr Ford.
Mr Grubert said teachers were "opposed to change that leaves them feeling undervalued, unappreciated and unseen".
"They perceive a change in culture that sees their vast knowledge and experience and expertise not influencing decision-making in an authentic way," he said.
Mr Ford said negotiations on the EBA had been paused because the school was advised that it would receive a 1.7 per cent cut in funding each year between 2022 and 2029.
He said that staff turnover had been in line with the average for independent schools.
"Our turnover this year is about half the rate it was in 2016," he said.
IEU spokesman David Brear said teachers and parents at the school had contacted the IEU about the direction of the school.
"The union is not driving this. It's members of the Launceston Grammar school community," he said.