Drawing on findings from a national study of learning-focused leadership in challenging urban settings, this article examines the work of teacher leadership in urban high schools. In this context, a recently emerging cadre of nonsupervisory teacher leaders, working in collaboration with supervisory leaders, exercises a form of "distributed…

Because of the individual authority of each State for its own educational program, practices and policies differ widely among them in many respects. Yet in the midst of differences there are also common elements of development. The U. S. Office of Education, in presenting this series of monographs, has attempted to point out those common elements,…