Gonski funding is designed to ensure all children are educated in properly resourced schools.
This needs-based funding started in 2014, after the independent Gonski Review warned too many children were missing out due to a lack of resources.
Schools can use the funding in ways that help improve the results students achieve such as:
Reducing class sizes
Employing additional specialist teachers in areas such as literacy and numeracy
Providing greater assistance and support for students with disabilities or behavioural problems
Building the skills and knowledge of teachers through increased training.
Where the funding is being delivered, schools are reporting that it is making a real difference for students.
So what is the problem?
The problem is that the Turnbull Government wants to stop Gonski funding after next year.
That means children across Australia who are in under-resourced schools will be denied the support and opportunities they need to reach their potential.
The impact of this decision will be huge because two-thirds of the funding is due to flow from the Federal Government to schools in 2018 and 2019.
We can stop Malcolm Turnbull's cuts
Both Labor and the Greens have pledged their support for the full Gonski funding.
It is also supported by Coalition and Labor State Governments in NSW, Victoria, QLD, SA, the ACT and Tasmania.
It is only the Liberals and Nationals that oppose it.