Kathleen Dillon Hogan is a kindergarten teacher in the Calvert County, Maryland, public schools. When this paper was written, she was a first-grade teacher at Hyattsville Elementary School in Hyattsville, Maryland. Kathleen heard a colleague describe how her first-grade students were using motion detectors and computers to learn about line graphs (see Chapter 13). She interested her school’s reading specialist in trying this with her students, and together they invented a new way to teach a language arts objective, writing clear sequential directions by using these devices. She documented her students’ learning by videotaping their actions and comments. She also made copies of their writings and drawings as they designed motions, predicted graphs, and tested their predictions. This free selection includes the Table of Contents, Foreword, Preface, and an About the Editors section.