Linda Perlstein discusses education and writing, with occasional detours into pop culture and food.
Wednesday, April 28, 2010
Whence 50 percent?
The thinking seems to be in some circles that counting student test scores for anything less than 50 percent in teacher evaluation won’t get a state Race to the Top money. Does anybody know where the 50 percent figure originated? Is it just because it is powerful to say that at least half a teacher’s value be tied to student performance? It seems like a lot to me when the tests and processes still, by everyone’s admission, need to be refined—so I am wondering how this figure has become the rhetorical baseline.
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