In this book by Wendy Lichtman, Tess thinks math is a perfect metaphor for life. But when she hits 8th grade and starts to study algebra, things don’t always add up. This novel takes readers inside the head of one 13-year-old girl with a unique way of looking at life, and covers best friends who break a promise, cute boys who cheat and a mother who’s keeping a scary secret. Launch date: July 2007.