Besides the actual reading in class of many poems, I would suggest you do two things: first, while teaching everything you can and keeping free of it, teach that poetry is a mode of discourse that differs from logical exposition.
“Baseball is the president tossing out the first ball of the season. And a scrubby schoolboy playing catch with his dad on a Mississippi farm.”
“I believe in discipline, so I'm not the right person to cry about weakness and things like this, but maybe I'm not human.”