Todd Seal, elite member on my list of Bloggers Who Don't Blog Enough, makes the wait worth our while with some great peer review strategies, which I'll co-opt for math as soon as possible:
"Create two piles," I said. "Which ones passed and which ones did not? There will be three paragraphs in each pile."
Great conversations ensued, both in the small groups and as a class. Some shocking revelations occurred ("That one didn’t pass!?"). This was worth my time.
Once again, great teaching and free weekends prove mutually exclusive.