«Dynamic updates... to the program [crash tests and scores]» as car safety features improve more quickly. (extremetech.com)
A new study shows that students improve more on tests in their second year with the same teacher and the benefits are largest for students of color. (scoop.it)
Third, teachers who work in schools that were more effective at raising achievement in a prior period improve more rapidly in a subsequent period than do those in less effective schools. (cepa.stanford.edu)