I think we honor teachers by learning. I appreciate most the teachers who made me think. Nothing was more painful than trying to memorize a series of answers so I could get a good grade.  The practical examples you mention above are helpful and they work for the fundamentals, but too I feel we use the absence of a teacher as an excuse to avoid the work of  learning.

I'm grateful for teachers who taught me to learn. And I learn better when I do it expecting to have to teach it to someone else. Thanks for the great post! Mike...