This book investigates the foundational methods for teaching elementary students how to collect, organize, and represent numerical data through hands-on inquiry. The author, Wright Economopoulos, utilizes the Investigations in Number, Data, and Space framework to provide educators with structured activities that translate abstract mathematical concepts into tangible classroom exercises. By focusing on relatable metrics like pockets and teeth, the text argues that early data literacy is best achieved through active participation and systematic observation.

Educators frequently cite this series as a foundational resource for implementing inquiry-based mathematics in primary classrooms. Experts highlight the text for its clear, actionable instructions that allow teachers to integrate data analysis into daily lesson plans with minimal preparation.