The Programme for International Student Assessment (PISA) is a worldwide study conducted by the Organisation for Economic Co-operation and Development (OECD) to evaluate the educational systems of various countries. It assesses the skills and knowledge of 15-year-old students in reading, mathematics, and science every three years, providing valuable insights into how well students are prepared for real-life challenges. PISA aims to measure not just what students know, but how well they can apply their knowledge in practical situations. The results help policymakers and educators identify strengths and weaknesses in their education systems, guiding improvements and reforms to enhance student learning outcomes.