From Tennessee Education Report:
Most research suggests that school-based factors account for roughly 50% of the impact on student achievement. Non-school factors (home life, poverty, education level of parents, etc.) account for the other 50%. Of school-based factors, a child’s teacher can impact up to 50% of student achievement. That makes it the biggest school-based influencer on student achievement. But it also means teacher quality accounts for 25% of the impact on student achievement. 75% is beyond the teacher’s control. At that level, you could have amazing teachers and get the other 75% wrong and the student will still struggle and likely fail.
Read more on the Value Proposition for Teachers
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