This 60-minute IB DP Theory of Knowledge (TOK) lesson introduces Plato’s Allegory of the Cave and uses it to explore the relationship between perception, reality, and knowledge. Students examine Plato’s distinction between shadows, appearances, and deeper understanding, and consider what it means to question the things people usually take for granted. The lesson begins with short hook tasks that show how perception can be partial or misleading. Students then work through the allegory itself, inc