Across Australia the results were varied. In reading, maths, and science, students in South Australia, Tasmania and the Northern Territory fell below the OECD average for the first time.
The nation’s capital was the best performer, with the ACT and Western Australia both beating the average. New South Wales, Victoria and Queensland met the average.
Overall, the report found Australian students had fallen behind by a full school year in maths, and almost a school year in reading and science.