The pedagogy does not mean ‘education’, ‘instruction’, ‘didactic’ or ‘science of education’. According to Durkheim, the pedagogy, which implies the ought, exists between the technique of education and the science of ‘educational fact’. For Durkheim, the pedagogy is defined as ‘practical theory’. If the pedagogy is a theory of educational practice, its method is none other than the reflection. Durkheim suggested three pedagogical methods: one is a historical analysis of the educational system, another is a historical reflection on the pedagogical thought, and the other is a psychological reflection such as child psychology and group psychology. The study of the pedagogy re-examines the history and philosophy of education from the perspective of the pedagogy, brings them together, making researchers a researcher-practitioner, and teachers a practitioner-researcher. Like this, the pedagogy has the potential as a comprehensive study of humanities and social sciences in terms of the practical theory of education. As a result, the pedagogy shows the possibility of securing a unique academic field of theory/practice that the study of existing history and philosophy of education could not present. Since the possibility of pedagogy as a unique science is supported by Durkheim's insight on the pedagogy, the proposition that “the Nature and Method of the Pedagogy” by Durkheim is an introduction to the study of the pedagogy will not be wrong

pedagogy, practical theory, nature of the pedagogy, pedagogical methods