Working with data is a foundational concept not only for mathematics, but also for understanding the world around us. Readers will gain exposure to principles of measurement, such as measuring length and using it to perform operations, while other narratives introduce concepts of money and time. Bright visuals help make math not only concrete, but also fun. Our world’s best jumpers serve as the subject of this title, which teaches readers how to use number lines. This volume meets CCSS Math Standard 2.MD.B.6.