No, great schools can't close achievement gaps all by themselves
from The Washington Post
Opportunity gaps drive achievement gaps. Yet U.S. policies proceed as if achievement can be boosted without corresponding investments in opportunities. These gaps arise from inequities inside of schools as well as outside of schools. In fact, outside-school factors appear to account for most of the measured variance in achievement among different groups. Yet U.S. policies proceed as if these gaps mainly arise from schools and should be closed by school-centric policies.
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