The Zeroing in on Number and Operations series, which aligns with the Common Core State Standards and the NCTM Standards and Focal Points, features easy-to-use tools for teaching key concepts in number and operations and for addressing common misconceptions. Sharing the insights they've gained from decades of mathematics teaching and research, Linda Dacey and Anne Collins help you focus on what students really need to know and understand at each grade level. Each book in the series, which is organized by grade level, provides thirty research-based, classroom-tested modules that zero in on the key mathematical strategies and concepts essential for that grade level, while highlighting the importance of teacher language in the development of those skills. The spiral-bound flipchart format makes it easy to access the important sections in each module, including: * summaries that identify the mathematical focus and its associated challenges and misconceptions; * instructional strategies and activities that develop conceptual understanding and computation skills; * activities and ideas for adjusting activities to meet individual needs--an indispensable resource for implementing Response to Intervention strategies; * reproducibles for instructional use; and * resources for further reading.