For preschool educators as well as interested developmental researchers, Knowledge under Construction offers a succinct, useful introduction to the topic, delineating various aspects of spatial, geometric, and architectural thinking and related theoretical perspectives that can be brought to bear on children's construction play. The book also contains helpful pedagogical features such as a set of topics and questions at the end of each chapter for discussion. Major contributions of the book are in situating this important developmental topic in natural settings (young children's spontaneous construction play) and in pointing to some promising directions regarding how this knowledge can shed light on preschool and elementary education, particularly in science and mathematics.

David Yun Dai, State University of New York at Albany, PsycCRITIQUES

Daniel Ness and Stephen Farenga demonstrate that there is more going on during free play than previously presumed; specifically, they delineate emergent mathematical and scientific thinking....The unique characteristic of this book is the study of young children as architects manipulating blocks during play, and the identification of architectural principles underlying the development of spatial and geometric thinking.

Betty Ruth Baker, Teachers College Record

This is a fascinating book that explores how young children construct knowledge with regard to the spatial and geometric aspects of behavior during block play....The boko has a contribution to make in mathematics, early childhood education, and the field of cognitive sciences. The research is a pioneering study in an area where little data currently exists and serves as a catalyst for further investigations into the importance of play, cognitive development, and success in school.

Teaching Children Mathematics

Significant for educators, parents, and researchers.... These are important findings that buttress the instructional goals of the National Council of Teachers of mathematics (NCTM) for young learners.... Thought-provoking quotes and...expansive use of examples.... The authors provide insights into the implications of the research for those concerned with the education of young children. This is one of the most comprehensive works to date on the spatial, geometric, and architectural thinking of young children. Overall, this book significantly contributes to our understanding of the oftentimes overlooked mathematical abilities of our youngest learners.

Jenifer Thornton, American Journal of Play

This is a well-written, abundantly documented volume whose authors achieve their aim: to identify and define values and significance inherent in or related to young children's block play. This is an area of research heretofore somewhat neglected or underestimated with regard to various dimensions of the child's mathematical and scientific development. Daniel Ness and Stephen Farenga demonstrate that there is more going on during free play than previously presumed; specifically, they delineate emergent mathematical and scientific behaviors that form the basis for the development of mathematical and scientific thinking.

Betty Ruth Baker, Baylor University, Teachers College Record

Despite its importance in early childhood mathematics education, young children's block play has seldom been investigated in depth. But now the field is fortunate to have Ness and Farenga's detailed study of young children's use of blocks to explore basic ideas of space, geometry, and even architecture. This book shows how intellectually rich the opportunities that block play offers are, and how children-regardless of gender and socioeconomic status-make splendid and surprising use of them. This book should be of vital interest to early childhood educators!

Herbert P. Ginsburg, Teachers College, Columbia University