This book, intended for mathematics education professionals and teachers of mathematics, is outstanding in that its contributions come from a broad range of countries and cultures; they are representative of different theoretical perspectives and classroom experiences. All contributors are concerned with helping teachers explore ways to develop children's mathematical understanding appropriate for the new millennium. The authors present complex ideas about mathematical understanding and provide readers with powerful classroom examples. Recommendations for changing the curriculum for young children are also suggested. The book comprehensively documents four years of development in the field. Among the emergent developments described is the importance of context to mathematical development - it is not only the physical context, but also the social context of the classroom and school that stimulate conceptual growth. The book also locates current theoretical perspectives in a broad framework. Finally the book is organized around four interconnected themes all related directly to teaching and learning mathematics.

Social constructivism is just one view of learning that places emphasis on the social aspects of learning. Other theoretical positions, such as activity theory, also emphasise the importance of social interactions. Along with social constructivism, Vygotsky's writings on children's learning have recently also undergone close scru tiny and researchers are attempting a synthesis of aspects ofVygotskian theory and social constructivism. This re-examination of Vygotsky's work is taking place in many other subject fields besides mathematics, such as language learning by young children. It is interesting to speculate why Vygotsky's writings have appealed to so many researchers in different cultures and decades later than his own times. Given the recent increased emphasis on the social nature of learning and on the interactions between student, teacher and context factors, a finer grained analysis of the nature of different theories of learning now seems to be critical, and it was considered that different views of students' learning of mathematics needed to be acknowledged in the discussions of the Working Group."