Background: Achieving high quality teacher training requires teachers to have the opportunity to develop not only professional skills but also, fundamentally, their professional identity. Objective: To describe and interpret the subjective theories of Basic General Education Pedagogy students from a public university in northern Chile regarding the construction of professional identity in early practices. Method: A qualitative case study methodology was used with a theoretical sample of nine Basic General Education Pedagogy students from a public university in northern Chile. The data, obtained from episodic interviews and a group interview, was analyzed based on the grounded theory. Results: The following was found: (a) different meanings about early practice and an evaluation that includes positive and negative aspects of the process, (b) an association between the development of profe...