Ever wonder what it is that makes great teachers great? Like, are there any commonalities in the pedagogical approaches of renowned teachers?

A 2006 analysis of 30 hours of lesson footage of violinist Donald McInnes, oboist Richard Killmer, and pianist Nelita True found 19 common elements in their teaching approach across a range of students, from high school to doctoral level.

Click through for all the nerdy details:

19 Things That Great Teachers Do

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