1. Children's Work with Data / Richard Lehrer, Nancy D. Giles and Leona Schauble -- 2. How Children Organize and Understand Data / Angie Putz -- 3. How Much Traffic?: Beep! Beep! Get That Car Off the Number Line! / Jean Gavin -- 4. What's Typical?: A Study of the Distributions of Items in Recycling Bins / Carmen Curtis -- 5. Shadows / Susan Wainwright -- 6. Graphing / Jennie Clement -- 7. Graphing Artistry: Data Displays as Tools for Understanding Literary Devices / Deborah Lucas -- 8. Data Models of Ourselves: Body Self-Portrait Project / Erin DiPerna -- 9. Classification Models Across the Grades / Sally Hanner, Eric James and Mark Rohlfing -- App. Sample Student Report Written on a Computer