A list of evidences for a definition of good teaching:

1) Whenever students are involved with issues they regard as vital concerns, good teaching is going on.
2) Whenever students are involved with explanations of human differences, good teaching is going on.
3) Whenever students are being helped to see major concepts, big ideas, and general principles, and are not merely engaged in the pursuit of isolated facts, good teaching is going on.
4) Whenever students are involved in planning what they will be doing, it is likely that good teaching is going on.
5) Whenever students are involved with applying ideals such as fairness, equity or justice to their world, it is likely that good teaching is going on.
6) Whenever students are actively involved, it is likely that good teaching is going on. 7) Whenever students are directly involved in real-life experience, it is likely that good teaching is going on.
8) Whenever students are actively involved in heterogeneous groups it is likely that good teaching is going on.
9) Whenever students are asked to think about an idea in a way that questions common sense or a widely accepted assumption that relates new ideas to ones learned previously, or that applies an idea to the problems of living, then there is a chance that good teaching is going on.
10) Whenever students are involved in re-doing, polishing or perfecting their work, it is likely that good teaching is going on.
11) Whenever teachers involve students with the technology of information access, good teaching is going on.
12) Whenever students are involved in reflecting on their own lives and how they have come to believe and feel as they do good teaching is going on.

Haberman, Martin. "The Pedagogy of Poverty Versus Good Teaching". Phi Delta Kappan, 73(4), 290-294.