This chapter addresses the interpretation of data through graphs, maps, and cross-sections, which includes aspects of Developing and Using Models; Analyzing and Interpreting Data; Using Mathematics and Computational Thinking; Engaging in Argument From Evidence; and Obtaining, Evaluating, and Communicating Information. In this chapter’s example activity design (EAD), a geological cross-section activity is offered. This EAD engages students in thinking about topographic and geological information and gives them practice constructing profiles and cross-sections. A materials list, teacher background information, and outcomes are provided. This book selection includes the Table of Contents, Acknowledgments, About the Authors, About the Book, Introduction, and Index..