We must consider the teacher in an integrated way (as a citizen and professional), inserted and acting in the society of his time, as a subject who produces and produces himself, in his relationship with the world, with the historical context and his own history. To this end, we seek to understand what professional mechanisms teachers use to deal with the dilemmas and possible changes in perspective that arise during their professional career, which serve to shape their identity and professional maturity - solving problems; reflecting on difficulties and successes; evaluating and readjusting ways of proceeding. Our aim is to understand how these professionals entered the teaching profession, what aspects contributed to their remaining in the profession, as well as the elements that make up the construction of their teaching professionalism. The teaching profession has not yet become a reality, even though it is such an old practice. In the midst of the current reality of the (de)professionalization of the pedagogue, and consequently of the teaching profession, it is necessary to form the collective conscience of a professional category in order to defend their common interests.