Over the last quarter of a century, the emphasis on accountability for student learning outcomes, and the findings from effective schools research, have served to draw attention to the role of heads as educational leaders. At the same time, the growing complexity of the role of the school head has meant that they have often been diverted into other roles associated with the running of the school and have had less time to devote to the core business of schools, namely teaching and learning. With the emergence of the knowledge society it is likely that schools will come under constant pressure to find ways of improving learning outcomes for all students, and headteachers will be expected to provide the leadership required to bring about the needed transformation. This paper briefly considers what heads need to know about teaching and learning to be effective educational leaders. The discussion is structured around three key roles of school leaders, namely: