I visited Exile #4's class again yesterday morning. However, I was just there to be an audience for a poetry recital - not to trouble the kids with my camera as on the last few visits.
She did a nice job of her poem - an acrostic. Several of the others recited something I later learned was a 'cinquain' poem. It wasn't a form I'd heard of but Exile #4 did a nice job of explaining it to me using the one from her poetry collection.
This isn't hers:
with definitive structure
Easier than a haiku
...but you'd probably have guessed that.