This document provides an overview of action research, outlining its key principles and methodology. Action research is defined as a small-scale intervention to address practitioners' issues, combining diagnosis, action, and reflection in an ongoing cycle. It aims to simultaneously solve problems and generate new knowledge. The methodology involves identifying a problem, planning and implementing an intervention, then evaluating the results through critical reflection before progressing to the next cycle. Participation, collaboration, and reflection are emphasized. The goal is to improve practices and empower participants through emancipatory social change.