The document discusses how principals can contribute to student achievement in elementary schools. It suggests that principals should set clear goals and develop a shared vision. Principals should actively engage teachers by facilitating discussions and providing collaboration time and learning opportunities to improve teaching practices. They should also focus on formative assessment and build human capacity. Additionally, principals need to cultivate a positive school culture with trust, collaboration, and high expectations. Finally, the document stresses the importance of effectively communicating with and involving parents to help students at home.