When you get back your questions from me, there will either be a plus, a check or a minus on the paper or in the email. This is a way for me to assess your work and provide feedback without giving grades. I owe this method to a teacher of mine in undergrad: Stephen Kellert.
Plus Means that your work not only fulfilled requirements but also did so in a thoughtful, creative way.
Check Means that your work fulfilled requirements.
Minus means that your work did not fulfill requirements.