Public school activist Leonie Haimson notes in her post about New York’s new educator evaluation plan that the plan includes this proviso:

Teachers rated ineffective on student performance based on objective assessments must be rated ineffective overall.”

Haimson writes: “This means despite the claim that there are multiple measures, one year’s worth of unreliable and inherently volatile test scores will trump all.”

The state scores are supposed to be 20% of a teacher’s evaluation, plus another 20% of local measures. But a teacher who is rated ineffective on the 40% “must be rated ineffective overall.”

Ergo, 40% = 100%.

*the original post said 20% = 100%, but teacher/blogger Arthur Goldstein pointed out to me that the test portion was 40%, not 20%.