The time has come to re-assess the role that Philosophy has to play in the education of teachers, both at the beginning of and during their careers. The currently fashionable craft conception of teaching is inadequate as a preparation for a career in teaching. Philosophy of Education has an important role to play in preparing for a career in teaching. First, it enables teachers to acquire a grasp of the conceptual field of education and an ability to find their way around the often contested views within that field, which in turn impinge upon the normative structure of particular education systems. Second, it enables them to understand better the conceptual debates that involve the subjects that they are teaching. Third it enables teachers to understand the scope and limits of empirical research in education and the relationships between that research and conceptual issues in education. These claims are discussed with examples, and recent government statements about standards and competences in teaching are looked at through the perspective of a conceptually informed, career-oriented profession of teaching. Reasons for the past decline of philosophy of education in teacher education and how they might be avoided in the future are also reviewed.