An Open Letter to Bill Gates: Why Not Measure This? - Living in Dialogue - Education Week Teacher - 0 views
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Jeff Bernstein on 10 Feb 13"The Gates Foundation has decided that the variable we can most readily change is the effectiveness of the classroom teacher. Therefore all their powers of measurement have focused on this single variable. We have explored in the past some of the problems with this. In particular, the fact that less than 15% of the differences in student growth can be attributed to their teacher suggests that perhaps we ought to be looking in the realm of the out of school factors, which have been found to account for more than 60% of these differences. Today I want to explore some of the areas that have remained unexamined."