The Australian Education Union will meet on Monday to decide whether teachers should boycott tests that feed data into the controversial My School website.
The Union had threatened the boycott when the website launched, believing it would lead to the reputation of schools being damaged when the data was used to rank them in league tables.
AEU federal president Angelo Gavrielatos said the union's federal executive would meet in Melbourne on Monday to decide whether or not to cooperate with the next round of tests in May.
The Government has previously threatened to fine teachers or dock their pay if they refuse to carry out the tests.
In a statement, he also criticised Federal Education Minister Julia Gillard for allegedly refusing to meet with the union over the issue.
Gillard in the past has said she had held several meetings with the union over the issue, which remained unresolved at and in the months following My School's launch.
The AEU has proposed add-ons to the website to resolve the issue.
"Our proposal would see the full range of student results at schools reported on the My School website, not just a misleading average figure," Gavrielatos said.
"Parents would also get a plain-English analysis of the results of each school in literacy and numeracy rather than just general information.
"Full details of school funding and resources would be added to the site and, under the AEU plan, the progress schools were making with students would be shown for the first time."
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