Poetry Matters (6): The Poetic Turn

I have just read an interesting post about whether students enjoy poetry classes. What is it about a poem (rather than a teacher) that makes the subject exciting to a group of nineteen year old? Is it the structure, the nature of the 'turn' or a rhyme scheme? The linked blog, 'Structure and Surprise', complements the book of the same name, edited by Michael Theune from Illinois Wesleyan University in Bloomington, Illinois.