This paper describes the Adolescent Community of Engagement (ACE) framework as a lens to guide research and design in adolescent online learning environments. Several online learning frameworks have emerged from higher education contexts, but these frameworks do not explicitly address the unique student and environmental characteristics of the adolescent online learning environment. The ACE framework consists of four main constructs that make up an adolescent online learning community. The first three (student engagement, teacher engagement, and peer engagement) build on previously established online frameworks that originally emerged from higher education contexts. In addition, the ACE framework recognizes the role of parents in their children's learning and introduces a fourth construct, parent engagement, which builds on two previously established face-to-face frameworks.