This book brings together a range of international studies to support the implementation of cooperative group work in the classroom. In spite of extensive research into the benefits of this approach, in many countries, it is not widely used, largely due to a lack of understanding of how to put this into practice in the classroom. Starting from an exploration of the theoretical perspectives that underpin this pedagogy, the challenges for including pupils with special educational needs and related status issues of pupils are explored. This book was originally published as a special issue of Education 3-13.