The section labels in our note packets match the sections of the book. So to find more information about section 1.2 Powers and Exponents, you would select Chapter 1 and look for section 1.2. The online textbook is helpful for reading a complete explanation of the topic and seeing additional practice questions. If you click on the Section Quizzes, then Progress Check, it will give you a quiz you can take, then check your answers. There is also a self-grading quiz at the end of the unit.