In 2009, the Bill & Melinda Gates Foundation launched a massive project to study 3,000 teachers in seven cities and learn what made them effective. The five metrics that most correlated with student learning were:
1. Students in this class treat the teacher with respect.
2. My classmates behave the way my teacher wants them to.
3. Our class stays busy and doesn’t waste time.
4. In this class, we learn a lot almost every day.
5. In this class, we learn to correct our mistakes.
