These chapters work best if you study them in sequence. Chapter 3 builds on what you have learned in Chapter 2, and so on. If you or your teacher feels that you already know the material covered by a particular chapter, you can verify that knowledge by completing the Review and Practice section, which summarizes each key point and asks you to apply it in several situations. If most of your answers are correct, you can feel confident about moving on to the next chapter.
The results of the Mastery tests (which you will need a special password to enter) will be e-mailed automatically to your instructor.