Sheri Lederman’s victory over New York’s “arbitrary and capricious” evaluation system was national news. Contrary to speculation in the media, teachers’ unions did not do the research for the Ledermans. He was referred to experts by me and Carol Burris, and the expert witnesses referred him to others who had conducted research.
The following letter went to all members of AFT:
Randi Weingarten wrote:
On Tuesday, the Supreme Court of the State of New York sided with educators in the fight against VAM (value-added modeling), calling an algorithm-based teacher evaluation “arbitrary and capricious.”
Long Island fourth-grade teacher and union member Sheri Lederman bravely took on the state’s VAM-based evaluations with a straightforward argument: Using a black-box formula to evaluate and punish teachers is, simply put, wrong.
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