This research study contributes to science teacher training by analyzing a curriculum that takes in sociocultural perspectives of science and learning in in-service teachers' pedagogical practices. It is a qualitative study with a critical hermeneutic methodology. The method used was a multiple case study, which inquires by exploring different cases in depth. The information was collected within the framework of a postgraduate training program, with in-service teachers from the areas of

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... Technology, Engineering, and Mathematics (STEM), in two settings: the training program and the observation of their pedagogical practice. Results show that this sociocultural perspective of the curriculum contributed to the pedagogical practices of the teachers under study in six different ways: i) generation of new understandings of science, learning, and the discipline they teach; ii) identification of other meanings for the concepts they teach; iii) changes in-class activities that help to recognize the identity of the scientific community; iv) inclusion of strategies that foster the negotiation of meaning in the community; v) changes in the evaluation strategies, giving more importance to feedback; and vi) generation of reflexive processes about the pedagogical practice in a more conscious way.