What's in Mastering for students? One of the tools that you'll find in Mastering Chemistry, Physics, and Biology courses (among others) is Dynamic Study Modules. Dynamic Study Modules allow you to turn those small chunks of free time you might have (20 minutes on the bus, for example) into effective studying sessions. These modules pose multiple choice questions and ask how confident you are in each answer, before providing feedback and bits of content that you'll need to learn in order to maste