Federal School Education Minister Peter Garrett says a national plan to improve literacy and numeracy will help the government achieve its goal to get Australia in the top five school systems in the world by 2025.

The government is investing an additional $243.9 million nationally to go towards the Improving Literacy and Numeracy National Partnership.

Speaking to reporters at Sydney's Maroubra Bay Public School on Wednesday, Mr Garrett said $74.9 million of the total investment will go to NSW.

"This new funding will build on successful strategies undertaken through the previous national partnership, which ran from 2008 to 2012," he said.

"We now need to move to the next step in making sure that every Australian child gets the best education they can."

Mr Garrett said the goal of moving Australia into the top five countries in the world for education by 2025 could be achieved with a national plan for school improvement.

He said NAPLAN data showed that NSW students who participated in the previous partnership showed an improvement in scores.

He encouraged other state and territory governments to sign up.