This study faces the reality that large classes are what millions of teachers and children live with every day, in many regions of the world. Each chapter author is an experienced educator who seeks to offer something significant to our understanding of large-class teaching. Several of them have lived and worked in three or more regions of the world. With such international perspectives forming the backdrop, this is a collection of what has worked in various countries - glimpses selected and shared with the conviction that we have much to learn from peoples everywhere.