For what it’s worth, the Gates Foundation spent many tens of millions attempting to quantify ‘teacher effectiveness’ and basically concluded that it’s not measu

For what it’s worth, the Gates Foundation spent many tens of millions attempting to quantify ‘teacher effectiveness’ and basically concluded that it’s not measurable. Instead, they produced a holistic set of observable behaviors that are generally correlated with ‘great teaching’ - which may be useful, but isn’t the same thing. This is not to say I really disagree with you about the quality of education schools, but knocking them for failing to produce a measurable impact on teacher effectiveness doesn’t resonate with me when we don’t have robust tools for measuring teacher effectiveness in the first place.