In an earlier post I wrote about Gary Stager's remark that if we want kids to be good at learning they should spend time with good learners.
Now I notice that Deborah Meier said, "I want kids to keep company with strong and powerful adults so that they grow up to be strong and powerful adults."
Teachers (and educators of all sorts) are role models for students. They spend a significant amount of time with us. It certainly makes good sense for teachers to be good at learning and strong and powerful. As is often true, what makes good sense to me doesn't seem to be the popular opinion.