This brief document offers ten principles of effective school design. They are: (1) Clear Focus and High Expectations for staff and students are defining features of an effective school; (2) A Rigorous Instructional Program provides equitable opportunities to learn and enables every student to master challenging content, skills, and learning strategies; (3) A Personalized Learning Environment is characterized by knowledge of each student's learning style, social and family conditions, strengths, aspirations, and needs; (4) Instructional Leadership by the principal and other school leaders is characterized by a schoolwide focus on student achievement; support for improving and enhancing school culture, teaching, and learning; and effective collaboration among school leaders, teachers, parents, students, and partners in the community; (5) School-based Professional Development and a culture of professional collaboration improve instruction and student achievement and cultivate adult learning communities within the school; (6) Meaningful Assessment of student learning occurs continuously and gives students a variety of opportunities to demonstrate that they meet content and performance standards and can apply their learning; (7) Partnerships with Organizations strengthen the ability of the school to serve the academic and developmental needs of its students; (8) Parent and Caregiver Engagement is an ongoing process that integrates families into the life of the school in a variety of ways; (9) Student Voice and Participation ensure that students have significant opportunities to collaborate with school staff, exercise leadership, and make choices and decisions; and (10) Integration of Technology into Teaching and Learning allows all students to access and analyze information, communicate ideas, and express themselves creatively.