Great for the kids! This explains the Order of Operations. It addresses the Common Core Grade Math Operations and Algebraic Thinking stardard Use parentheses, brackets, or braces in numerical expressions, and evaluate expressions with these symbols.
I think mine came out cuter :-) Angry Bird origami book mark basic instructions. I used white paper and drew on the different birds' faces. Play around with the final folds, and size of paper, to create various birds.