This book examines the textual, social, cultural, practical and institutional environments to which the expression "e;teaching and learning contexts"e; refers. It reflects on the extent to which studying such environments helps us to better understand ancient or modern sources, and how notions of "e;teaching"e; and "e;learning"e; are to be understood.Tackling two problems: the first, is that of certain sources of scientific knowledge being studied without taking into account the various "e;contexts"e; of transmission that gave this knowledge a long-lasting meaning. The second is that other sources are related to teaching and learning activities, but without being too precise and demonstrative about the existence and nature of this "e;teaching context"e;. In other words, this book makes clear what is meant by "e;context"e; and highlights the complexity of the practice hidden by the words "e;teaching"e; and "e;learning"e;. Divided into three parts, the book makes accessible teaching and learning situations, presents comparatist approaches, and emphasizes the notion of teaching as projects embedded in coherent treatises or productions.