On Tuesday morning a group of Singleton teachers gathered for a protest at the Sundial in support of their campaign 'More than Thanks'

ACTION: Singleton teachers hold a protest on Tuesday morning in Singleton in support of their industrial campaign. Photo supplied.

ACTION: Singleton teachers hold a protest on Tuesday morning in Singleton in support of their industrial campaign. Photo supplied.

On Tuesday morning a group of Singleton teachers gathered for a protest at the Sundial in support of their campaign 'More than Thanks'.

Teachers across the state went on a 24 hour strike on Tuesday, the first time in more than a decade, as new figures show the number of vacant permanent teaching positions in NSW has increased to more than 3,000.

NSW Teachers Federation president Angelo Gavrielatos said the government had made no effort to address the unsustainable workloads and uncompetitive salaries that were leading to growing teacher shortages across NSW.

New Department of Education figures show that of the 44,500 permanent teaching positions in NSW public schools, 3,038 were vacant in mid November. Even excluding 1,037 new positions there were 2,001 vacant positions - more than double the 995 recorded in June.

Mr Gavrielatos said: "Teachers and principals from the inner west to the Far West are telling us they just can't find the fulltime and casual teachers they need."