Dr Gallop, who was premier from 2001 to 2006, was commissioned to conduct an inquiry into teaching work and conditions by the NSW Teachers Federation.

He has recommended decent salary hikes of 10 to 15 percent, more time for teachers to prepare lessons and collaborate with colleagues, and an increase in the number of permanent roles to overcome shortages in casual teachers.

NSW Teachers Federation president Angelo Gavrielatos said the findings were a "wake up call for politicians".

"The NSW government must act in a way that is proportionate to the crisis we are facing," said Mr Gavrielatos.

"This is the first inquiry into the work of teachers since 2004 and it reveals a devastating picture of unsustainable workloads and uncompetitive salaries, leading to shortages and difficulty in recruiting and retaining teachers."

He said teachers needed more time to "concentrate on teaching and learning and improving student results".

Dr Gallop's report also recommended that the state government scrap its timetable to introduce a whole new curriculum by 2024.

Mr Gavrielatos said principals were working an average of 62 hours a week and teachers an average of 55 hours a week.

"Teachers have two jobs now: teaching and administration," he said.

"They are run off their feet and caught up in more red tape that the public could possibly imagine."

He said a "significant reset" of teaching salaries was required.

"We need ... to recognise that teaching is a far more difficult and complex profession, and to help recruit the thousands of additional teachers we will need to meet an unprecedented 25 percent increase in enrolments expected within 20 years.

"We must act to ensure every child is taught by a qualified teacher and class sizes are not increased as enrolments boom."

Former Western Australian premier Dr Geoff Gallop will be at Orange Bowling Club at 4.30pm on Monday.

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