Carol K.K. Chan is an Associate Professor in the Faculty of Education at The University of Hong Kong. Her research areas include learning, cognition and instruction, computer-supported knowledge building and teacher communities for classroom innovation. She has published in leading journals in these areas and won international research awards on knowledge building conducted in Chinese classrooms. Dr Chan has received Outstanding Teaching Awards from both her Faculty and University. Nirmala Rao is a Professor in the Faculty of Education at The University of Hong Kong. She is a Developmental and Educational Psychologist whose research focuses on early childhood development and education. She has published widely in these areas and has engaged in policy relevant child development research in several countries in the region. She has also been actively involved, at the international level, in several professional organizations concerned both with the well-being of young children and research on early child development.