Educational design research is the systematic study of designing, developing and evaluating educational programs, processes and products. It can be an invaluable process, yielding considerable insight into how to optimize educational interventions and better understand teaching and learning. However, the fact that such investigations are typically carried out in naturalistic settings - with all the color and complexity that accompanies real classrooms and schools - presents researchers with significant methodological challenges, and scientific rigor can be difficult to maintain. This book...

Our objective is to publish a book that lays out the theoretical constructs and research methodologies within mathematics education that have been developed by Paul Cobb and explains the process of their development. We propose to do so by including papers in which Cobb introduced new theoretical perspectives and methodologies into the literature, each preceded by a substantive accompanying introductory paper that explains the motivation/rationale for developing the new perspectives and/or methodologies and the processes through which they were developed, and Cobb s own retrospective...

Our objective is to publish a book that lays out the theoretical constructs and research methodologies within mathematics education that have been developed by Paul Cobb and explains the process of their development. We propose to do so by including papers in which Cobb introduced new theoretical perspectives and methodologies into the literature, each preceded by a substantive accompanying introductory paper that explains the motivation/rationale for developing the new perspectives and/or methodologies and the processes through which they were developed, and Cobb s own retrospective...