“…a reader suggests a simple way to evaluate the oft-repeated assertion that low test scores are caused by bad teachers:
I wonder why the reformers don’t try this experiment: Take the staff of an underperforming school and switch them for a year with the staff in a high performing school. Let’s see if the results are that different.
I say try it for three years. Compare the results in both schools. Good idea.”
A fabulous �idea from Diane Ravitch’s blog -�A Way to Test the “Bad Teacher” Theory. Would you be willing to do it?
via A Way to Test the “Bad Teacher” Theory.