TALLAHASSEE, Fla. -

Florida's statewide teachers union says a new state evaluation system is so flawed it should be put on hold.

The Florida Education Association on Tuesday said it's resulted in many teachers being evaluated based on test scores of students they never taught.

On the other hand some students they have taught are not included in their evaluation. Veteran teachers at A-rated schools have been evaluated as needing improvement.

The union asked Gov. Rick Scott for a delay without success and now is turning to the Legislature and courts.

The Legislature passed a law passed last year that requires evaluation plans to include what's known as a value-added measure based on student test results.

Evaluations will be used to determine which teachers are retained and which receive merit pay.