The document discusses factors that contribute to successful schools based on research. It notes that high-performing schools plan instruction starting with their special education and English as a second language students, unlike most schools that mold curriculum to above-average students. It identifies 9 central factors in education planning, including teaching essential content, understanding each student, integrating research, and breaking learning into small parts. Additionally, it states that high-performing schools believe all children can learn, focus first on the needs of hardest-to-serve students, and are placing special education and ESL educators in leadership roles.