We need to evaluate educational practices because evaluation helps determine whether teaching methods, curricula, technologies, and policies are actually supporting student learning and well-being. Without evaluation, schools risk relying on assumptions or traditions rather than evidence, potentially wasting resources or unintentionally disadvantaging some learners. Effective evaluation provides accountability, helps identify areas for improvement, supports informed decision-making, and ensures that innovations—such as digital tools or new pedagogies—are producing the intended outcomes. To evaluate education most effectively, it is important to use a combination of quantitative and qualitative methods, aligning evaluation tools with clear goals and learning outcomes. This often means collecting multiple forms of evidence—student performance data, classroom observations, surveys, interviews, and real-time learning analytics—to gain a holistic picture rather than relying on isolated metrics. Effective evaluation also requires stakeholder involvement, ethical data practices, transparency, and continuous cycles of reflection and adjustment. When evaluation is integrated as an ongoing, collaborative process rather than a one-time judgment, it becomes a powerful driver for meaningful improvement in teaching and learning.