Calls for the return of the one-year teaching qualification We’re sorry, this service is currently unavailable. Please try again later. Dismiss Normal text size Advertisement The head of Catholic Schools NSW says a one-year graduate diploma of education should be reintroduced to make it easier for people who hold other degrees - particularly in maths and science - to become teachers. A teacher shortage is already biting in NSW, particularly in regional and disadvantaged areas, and will get worse as a large group of older teachers retire and fewer young people elect to begin teaching degrees. There is a shortage of teachers in NSW.