Technology makes it easier than ever for educators to generate meaningful, ongoing data to inform their teaching, track student progress, and personalize learning. When the author began to explore how she could use technology to quickly assess student skills, data became exciting and took on a new role in her teaching practice. Now she uses data to gain insights into her students' abilities that she never had before. In this article, the author discusses how she collects data to customize learning and how she reports data to motivate students.