I wrote this book to prepare California middle and high school mathematics teachers to take the three CSET (California Subject Exam for Teachers) tests in Mathematics. Teachers must pass the first two to be considered “highly qualified” to teach “foundational-level” mathematics and must pass all three to be “highly qualified” to teach any advanced high school mathematics course. These materials were developed through the Lincoln Achievement in Mathematics Partnership, a California Mathematics and Science Partnership, which hired me as a consultant to help prepare Lincoln USD teachers for the CSET tests. As an Associate Professor at the University of the Pacific who is interested in and has a wide variety of experience in teacher training, specifically as it relates to deepening the content knowledge of teachers, I was an ideal candidate to prepare these materials. Errata: In the Statistics section, p. 66 and p. 67, the blank table (to be filled in) labeled "Observed Counts" should be "Expected Counts."