How about different colors for different answers? I would like to check for comprehension of concepts I've presented. I'm giving four options A) I don't get it. B) I get it, but I can't do it. C) I can do it D) I can teach it!

If there were different colors assigned to each answer, it could go from red to yellow to green, to maybe blue to reflect whether or not the kid needs help. This, by the way, is an amazing app!