The decagonal approach is a school improvement model used in Pakistan that takes a whole school approach rather than just focusing on teachers. It involves 10 components: capacity building of teachers, leadership and management, community participation, children's participation, developing the physical environment, curriculum enrichment, research and documentation, school governance, school-based interventions, and local resource generation. The approach was implemented in 30 schools over 2 years. Key lessons learned include that school improvement is a process, not an event, it requires team effort and changing individual attitudes, and creating a conducive learning environment contributes to student learning.