Leading experts on teaching and policy research provide concrete illustrations of what teaching for understanding entails.

DAVID K. COHEN is the John A. Hannah Distinguished Professor of Education and Social Policy at Michigan State University. MILBREY W. MCLAUGHLIN is professor of education and public policy and director of the Center for Research on the Context of Secondary School Teaching at Stanford University. JOAN E. TALBERT is senior research scholar and associate director of the Center for Research on the Context of Secondary School Teaching at Stanford University.