MasteringBiology(r) is the most powerful online homework and assessment tool available. Tutorials follow the Socratic method, coaching students to the right answer by offering feedback specific to a student's misconceptions as well as providing hints students can access if they get stuck. MasteringBiology helps instructors maximize class time with customizable, easy-to-assign, and automatically graded assessments that motivate students to learn outside of class and arrive prepared for lecture. The powerful gradebook provides unique insight into student and class performance even before the first test. As a result, instructors can spend class time where students need it most. The Mastering system empowers students to take charge of their learning through activities aimed at different learning styles and engages them in learning science through practice and step-by-step guidance-at their convenience, 24/7.