This document provides an overview of action research (AR), including its definition, purpose, characteristics, approaches, steps, data sources, analysis, validity, and references. AR is a type of research conducted by educators to evaluate and improve their own classroom practices. It is collaborative, focused on taking action and making iterative improvements. The goal of AR is to establish an evidence-based framework for enhancing education. It promotes teacher development and tests new ideas through systematic data collection, reflection, and iterative research cycles.