A landmark Colorado law that ties teacher evaluations to the progress of their students on achievement tests could help build momentum for a national movement that seeks to overhaul how instructors' tenure and pay is earned, education leaders say.
Colorado's law will hold teachers accountable for whether their students are learning, with 50% of a teacher's evaluation based on students' academic growth as measured partially by test scores. In California, Gov. Arnold Schwarzenegger is pushing legislation that will change the way teachers are evaluated, but its prospects are less certain; the state's teachers union strongly opposes it.
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