This document discusses teacher leadership. It defines teacher leadership as the process by which teachers influence colleagues, principals, and other school community members to improve teaching practices and increase student achievement and learning. Qualities of teacher leaders include being excellent teachers, having strong interpersonal skills, and modeling effective practices. The roles of teacher leaders include mentoring, leading professional development, and facilitating collaboration. Developing teacher leadership can benefit schools by cultivating expertise, rewarding accomplished teachers, and improving student outcomes. Barriers include lack of trust and delineation of responsibilities between teachers and administrators.