This book shows the importance of a more socially grounded account on learning, instruction and teaching at and between different levels: meta-theory, theory, methods and educational practices. Three main questions are dealt with in the research presented in the book: what are the affordances and constraints of a dialogic view of knowing, knowledge, and learning; how useful it is to integrate contemporary learning mechanisms and concepts (like elaboration, metacognition) within a dialogic framework; what are the educational implications of a dialogic view of knowing and learning.