"This book is part of the Every Student Can Learn Mathematics series. In Mathematics Unit Planning in a PLC at Work, Grades PreK-2, authors Sarah Schuhl, Timothy D. Kanold, Jennifer Deinhart, Nathan D. Lang-Raad, Matthew R. Larson, and Nanci N. Smith provide grades preK-2 mathematics teachers with a framework for collectively planning a unit of study. This book helps teams identify what students need to know by the end of each unit and how to build student self-efficacy. The authors advocate using the PLC at Work process for increasing mathematics achievement, and as teams answer the four critical questions of a PLC, they provide students with a more equitable learning experience. The authors share tools and protocols for effectively performing collaborative tasks, such as unwrapping standards, generating unit calendars, determining academic vocabulary and rigorous lessons, utilizing and sharing self-reflections, and designing foundational addition and subtraction units. By reading Mathematics Unit Planning in a PLC at Work, Grades PreK-2, teachers will receive practical insight into collaborative planning and inspiring detailed models of this work in action"--