This autobiographical article shows how the initial teacher´s training plays a crucial role in the reconstruction
of his professional identity. Over this period, the teacher begins to analyze, observe and reflect on what he does and how
he does it. This study revolves around three key issues: a) the importance of initial training in the quest for a more fully
human education; b) the importance of initial training in the quest for coeducation; c) the importance of initial training for
teacher educators. The conclusion is clear: a teacher´s professional identity is strongly determined by the initial stages of
his formation, which enable him to build, develop and apply his pedagogical knowledge.