Mac Iver and Balfanz draw on their decades of experience working with educators and their deep knowledge of challenges faced by high schools to customize the framework to the high school context. They model the use of improvement science principles such as establishing practical measures, conducting disciplined inquiry, and accelerating learning through networked communities. With real-world examples and ideas for change, the authors show how attention to five key areas can enrich student educational experience and improve high school outcomes. These areas are early warning and intervention systems; family engagement; students' sense of connectedness to school; social, emotional, and academic development; and teacher instructional practices.