Teachers: Much More Than You Wanted To Know | Slate Star Codex: "Newspapers report that having a better teacher for even a single grade (for example, a better fourth-grade teacher) can improve a child’s lifetime earning prospects by $80,000. Meanwhile, behavioral genetics studies suggest that a child’s parents have minimal (non-genetic) impact on their future earnings. So one year with your fourth-grade teacher making you learn fractions has vast effects on your prospects, but twenty-odd years with your parents shaping you at every moment doesn’t? Huh? I decided to try to figure this out by looking into the research on teacher effectiveness more closely.
This turned out to be a mistake."
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