Value Not Added
I would just like to point out that there's always excellent writing going on over at School Finance 101, but this recent post on the now popular abuse of "student grown models" as an alternative to "value-added" models is just excellent. There's a growth industry of people now selling various products related to growth models, and there's an entire layer of management devoted to shoehorning this gobbledygook into local policy. None of it exists in any of the countries that out-compete our poverty-impacted kids in international comparison. It only exists here; it's part of the national obsession with teacher quality based on everything except observation and
