Christopher Heeren is a native of Sacramento, California. While studying engineering in college, he had an opportunity to teach a math class at a local high school, and this sparked both a passion for teaching and a change of major. He received a Bachelor of Arts degree and a Master of Arts degree, both in Mathematics, from California State University, Sacramento. Chris has taught mathematics at the middle school, high school, and college levels, and he currently a Professor in the Mathematics department at American River College in Sacramento. He has a continuing interest in using technology to bring mathematics to life. When not writing, teaching, or preparing to teach, Chris enjoys spending time with his lovely wife, Heather, and their three children. Source: [Pearson](https://www.pearson.com/us/higher-education/program/PGM2167964.html?tab=authors)