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The Importance of Mastery Learning
In the 1980s Benjamin Bloom set up an experiment with students at different Chicago public schools. With one-on-one tutoring each student works through problems on their own But with a tutor who gave them immediate feedback and then advanced them to the next problem set they vastly outperformed the others by two standard deviations hence to Sigma. It was like taking an average class and transforming them from the 50th percentile to the 98th percentile Making every kid in the class the best kids in the class This is as far as I can tell, the most important result from education research.