The project was developed based on the research process in the classroom, with the objective of recovering the students' historical memory through the construction of life stories. For this purpose, pedagogical strategies were established for the generation of historical memory, where firstly, conceptual learning of Social Sciences was carried out, passing then to the construction of historical sources -by the students themselves- of photographs, documents, interviews, etc., which offered, at the end, the first narratives of each experience. With these results, the students re-elaborated a final text, which already gave an account of their life trajectory, where their socioeconomic conditions (throughout their lives), their life problems, their family and social conflicts, their feelings and sensations, in short, the process that has led them to be what they are; reflecting on their own subjectivity as historical-social subjects.