Teachers of trades at the secondary level are hired based mainly on their experience in the profession, regardless of teaching skills or training. Since 2003, these teachers have also been required by the ministère de l’Éducation, du Loisir et du Sport du Québec to obtain a 120-credit bachelor’s degree in professional teaching. Choosing to teach initiates a return to school for these adults. They are therefore required to get their university education while experiencing a major professional transition between the practice and the teaching of their profession. In this context, they are following a much different course than that of general education high school teachers, who take a linear path into the profession after having completed a bachelor’s degree. Contrary to these teachers, those teaching professional programs at the secondary level get involved in a professional development process with overlapping steps, based on their experience in the trade. From a macrosociological perspective, this article examines some elements that structure the path of these teachers.