Action research is a tool that combines action and research to empower teachers and improve practices. It involves identifying an issue, planning and implementing a solution, evaluating the results, and reflecting on the process in iterative cycles. Action research aims to solve real problems, build teacher involvement, understand causes, suggest practitioner-led solutions, and evaluate success in addressing the original issue. By blending intervention with evaluation and reflection, action research is seen as a way to empower teachers through professional development and critical analysis of their practices.