Delegates at the annual convention of the nation's largest teachers' union today approved a resolution opposing standardized national tests for students.

It is the largest teachers' college in Rio de Janeiro state offering advanced training of senior staff.

Such criticism has been echoed by leaders of some of the largest teachers unions around the country.

It was the largest teachers' strike in North American history.

The largest teachers' union has opted out of a strike today.

Mary Bell, president of the state's largest teachers' union, said she hoped the judge's ruling would lead to lawmakers reconsidering passing the law again.

The state's largest teachers union made the endorsement at its meeting in Somerset.

It follows a similar lawsuit filed in April by school districts in three states and the nation's largest teachers' union.

The largest teachers' union, the National Education Association, said it had not taken a position on the issue.

Britain's two largest teachers' unions have demanded further talks with the government after refusing to sign up to pension reforms.