If as we hear, the best teachers tend to gravitate to where the better students are, how do we help low achieving students?
Arne Duncan, the Secretary of Education, believes that a culture of ‘good enough’ exists in some schools that has to be changed.
Grading schools and teachers drives change to help students, so the argument goes.
Good teachers do make a difference in student learning in a school that supports their efforts. How much students learn in a year, adjusted by other factors, is the value added measurement (VAM) used to identify good teachers. This is a tricky business. Even the experts do not agree how accurate they are. Read to the end of the post, I saved the best until last.
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