The Problem of the Week submission process for these three problems is a lot more involved than it used to be! After students submit an answer, they'll have an opportunity to get help, check their answer, or even compare their solution to solutions submitted by other students. Students can use the "Learn more about...." link to read more details about how to take advantage of the new features.
Feel free to submit yourself to get a good idea of the new features. To help us out, just let us know that you are a teacher testing the system.