It has always been a flawed formula!
As is well known, the U. S. Department of Education zealously believes–like Michelle Rhee–that low test scores are caused by “bad” teachers. The way to find these ineffective teachers, the theory goes, is to see whose students get higher scores and whose don’t. That’s known as value-added measurement (VAM), and the DOE used Race to the Top to persuade or bribe most states to use it to discover who should be terminated.
As we also know, things have not worked out too well, as some Teachers of the Year were fired; some got a bonus one year, then got fired the next year. In many states, teachers are rated by the scores of students they never taught. The overall effect of VAM has been demoralization, even among those with high scores because they know the ratings are arbitrary.
For some reason, teachers don’t like to “win ” at the expense…
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