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View Diary: Why Obama's New Teacher Incentive Pay Will Take Education Backward (254 comments)

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  •  our local elementary has one class per grade (0+ / 0-)

    and a pretty steady population with relatively low turnover per class. All the teachers are veterans (and are gifted, fabulous individuals independent of their status as teachers). Thus, it's really easy to do a rough VAM-type look-see over the elementary grades.

    What do I see? Noise.

    You might expect to see a particular class always doing well on the tests, making a bump as it goes through the years. You don't, not really.

    You might expect to see a particular teacher always do well on math scores. You don't see that either.

    What you see is that one class nails the math in 3rd grade and bombs it in 5th, and another class bombs 3rd grade math and is extraordinary in 5th.

    What you see is that the little differences year to year that there might be in teaching are more influenced by a family moving in or out of the district, by when the STAR tests were given with respect to spring break, by whether any of the kids that year were disruptive, and even by the weather.

    Fry, don't be a hero! It's not covered by our health plan!

    by elfling on Sat Sep 29, 2012 at 10:13:43 PM PDT

    [ Parent ]

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