AppleTree Institute for Education Innovation, a nonprofit organization in Washington, D.C., is working to close the achievement gap before children enter kindergarten by providing 3- and 4-year-olds with the social, emotional, and academic foundations that enable them to thrive in school--and increasing educator effectiveness is a critical component of that. Since 1996, AppleTree has focused on providing high-quality early education to children in underserved communities in the nation's capital. The goal is to strengthen student academic and social emotional skills, maximize teacher performance, provide collaboration opportunities, and cultivate teachers' and instructional leaders' pedagogical skills through a comprehensive instructional model called Every Child Ready, which AppleTree developed through an Investing in Innovation grant beginning in 2010. Every Child Ready includes a three-pronged approach: (1) What to teach (curriculum); (2) How to teach (professional development); and (3) How to know it is working (assessment and evaluation). Every Child Ready is implemented across nine local education agencies, 23 campuses, and 97 classrooms for nearly 2,300 3- and 4-year-olds in the Washington, D.C., area. Every Child Ready is also implemented in a New York City school in Harlem. This article discusses the Every Child Ready professional development program and the use of the coaching progression and dashboard in the program.