Corporate education reform science fiction, is having an unintended(?) science fact effect.
This travesty has the effect of discrediting the whole idea of using test score data to drive reform. What does it say about "reformers" when they are willing to base a large part of teacher and principal evaluations on such an indicator?
That travesty is now manifesting itself in real personal terms.
Actually, they were near the very bottom.
Though 89 percent of P.S. 146 fifth graders were rated proficient in math in 2009, the year before, as fourth graders, 97 percent were rated as proficient. This resulted in the worst thing that can happen to a teacher in America today: negative value was added.
The difference between 89 percent and 97 percent proficiency at P.S. 146 is the result of three children scoring a 2 out of 4 instead of a 3 out of 4.
While Ms. Allanbrook does not believe in lots of test prep, her fourth-grade teachers do more of it than the rest of the school.
In New York City, fourth-grade test results can determine where a child will go to middle school. Fifth-grade scores have never mattered much, so teachers have been free to focus on project-based learning. While that may be good for a child’s intellectual development, it is hard on a teacher’s value-added score.
She was evaluated under the the D.C. teacher evaluation system, called IMPACT, a so-called “value-added” method of assessing teachers that uses complicated mathematical formulas that purport to tell how much “value” a teacher adds to how much a student learns.
As more data is demanded, more analysis can be done to demonstrate how unreliable it is for these purposes, and consequently we are guaranteed to read more stories of good teachers becoming victims of bad measurements. It's unfortunate we're going to have to go through all this to arrive at this understanding.