Mastery Charter High School is a network of public charter schools in the United States, founded in 2001 with the goal of creating high-quality educational opportunities for students living in historically underserved communities. The network operates 18 schools in Philadelphia, serving nearly 14,000 students in grades K-12. These schools are committed to providing a supportive and challenging learning environment for students, with an emphasis on college preparation and career readiness. Mastery Charter High School’s instructional approach is grounded in research-based best practices, including personalized learning, project-based learning, and data-driven instruction. The network’s schools operate under a “school turnaround” model, which means that they are typically located in low-performing school districts and are designed to improve education outcomes for all students. As part of this model, Mastery Charter High School works closely with families, community leaders, and other education providers to build strong partnerships that support students both inside and outside the classroom. Mastery Charter High School has received recognition for its success in improving student achievement, with higher graduation rates and test scores compared to nearby traditional public schools. The network has also been recognized for its efforts to provide a safe and positive learning environment for students, with robust support services to address social and emotional needs.