The Federal Government's new MySchool website is clearly flawed because it focuses on comparing schools rather than improving education outcomes, according to Greens Senator Sarah Hanson-Young.

Senator Hanson-Young, Greens spokesperson on Education, says a report by the Grattan Institute has reinforced concerns about the equity of the MySchool website - which was launched early this morning - in particular a potential bias against schools in poorer communities.

"We believe that parents need accurate, meaningful information to help them understand their children's school's performance, but the MySchool website fails this test,'' Senator Hanson-Young said.

"Comparing schools is not helpful, it doesn't assist educational outcomes but rather is damaging to schools, teachers and children.

"The Greens believe we should be valuing our kids more and that means finding ways to help them improve, not allowing the naming and shaming of already disadvantaged schools by using a flawed comparison that puts them even further behind the eight ball.''

Senator Hanson-Young says comments by Education Minister, Julia Gillard, talking about the choices the website will give to parents, fail to paint a realistic picture of Australia's education system.

"Ms Gillard talks about choice for parents, but as a parent the only option if your kids are in a poorly performing public school is to take them out and put them in a private school costing many thousands of dollars,'' the Senator said.

"For most Australians, who lack the finances to afford such schools, this is no choice at all.

"We have already heard reports that companies are now spruiking products to schools to prepare kids for NAPLAN testing.

"These sorts of commercial realities, coupled with the pressure on schools to score well on such limited testing, will inevitably lead to a narrower, less well-rounded curriculum for our children unless the Government shows some leadership on this issue.

''The Greens call on the Federal Government to reveal precisely how additional resources will be allocated in the public system, and how the new test results will impact on resources for schools that need help.