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.
More Quotes by A. R. Ammons
In nature there are few sharp lines.
Once every five hundred years or so, a summary statement about poetry comes along that we can't imagine ourselves living without.
If we ask a vague question, such as, 'What is poetry?' we expect a vague answer, such as, 'Poetry is the music of words,' or 'Poetry is the linguistic correction of disorder.'
Probably all the attention to poetry results in some value, though the attention is more often directed to lesser than to greater values.
I am grateful for - though I can't keep up with - the flood of articles, theses, and textbooks that mean to share insight concerning the nature of poetry.
Poetry leads us to the unstructured sources of our beings, to the unknown, and returns us to our rational, structured selves refreshed.