Each lesson consists of text broken down into short topics, followed by a quiz. The lesson quiz is comprised of multiple choice questions. As you finish each quiz, you will see the results. After successfully completing a unit, you may proceed to the next. You can enter and leave the tutorial as your time permits and your progress will be stored for you. Begin with Lesson 1 and read through the topic. At the end of the unit, log in, take the quiz, and view the results. Return to this page for Lesson 2, and so on.