that''s the easy part.
Now, measure it.
"While the MET project has brought unprecedented vigor to teacher evaluation research, its results do not settle disagreements about what makes an effective teacher and offer little guidance about how to design real-world teacher evaluation systems."
Basically, they figured out that 'teacher effectiveness' is very difficult to measure in any meaningful way. I could have told them that, for a lot less money.
Diane Ravitch posted this today on her blog.
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