See the following from Education Week:

“At a time when teachers’ unions are pushing back on newly redesigned evaluation systems, the debates are starting to find their way into the courts.

“The latest action comes in Tennessee, where the state union filed a federal lawsuit March 21 calling the portion of the state’s teacher-evaluation system based on test scores arbitrary, flawed, and in violation of teachers’ constitutional rights. Last year, a Florida union also sued over that state’s system.

“The lawsuit this month is the second in the Volunteer State to challenge performance bonuses based on such calculations, and it may signal a rash of challenges nationwide…”

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