This book contains insights based on research conducted as part of a major international project supported by Cisco, Intel and Microsoft. It delineating new ways of thinking about ‘21st-century’ skills and including operational definitions of those skills. The authors focus too on fresh approaches to educational assessment, and present methodological and technological solutions to the barriers that hinder ICT-based assessments of these skills, whether in large-scale surveys or classrooms. Equally committed to defining its terms and providing practical solutions, and including international perspectives and comparative evaluations of assessment methodology and policy.