Diane Ravitch's blog

Herb Bassett is a teacher in Louisiana. He teaches music, but like Jersey Jazzman, has the ability to understand statistics and how they work in real classrooms.

This is a letter that he wrote about Louisiana’s new teacher evaluation system, which is as incoherent as teacher evaluation systems in other states:


State Superintendent John White showed his true colors when he recently praised four FirstLine charter schools that “fell in the top 10 percent of Louisiana schools in terms of improving test scores, yet ranked fewer than 10 percent of their teachers highly effective.
‘Amazing results,’ he wrote.”
He did not mention that one of the four schools, while ranked in the 99th percentile of improvement, declared 68 percent of its teachers Ineffective. Most of its teachers are now on a fast track to dismissal.
In each of the other three schools, at least 69 percent…

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