Theory of Knowledge IB (TOK) is a core subject that encourages students to think critically about knowledge, truth, and evidence. TOK in IB helps students analyze how knowledge is formed across subjects, improving reasoning, writing skills, and intellectual awareness required for IB assessments and university-level thinking. Theory of Knowledge (TOK) is a foundational IB core course that investigates the nature, scope, and limitations of knowledge across different disciplines. It challenges students to reflect on how we know what we claim to know.

  • Purpose: To develop critical thinking about knowledge itself and foster intellectual curiosity.

  • Key Questions: Explores questions like “What counts as evidence in History?” or “How does emotion influence our reasoning?”

  • Assessment: Comprises a TOK Exhibition (internally assessed, 33%) and a TOK Essay (externally assessed, 67%).

  • Connection: Explicitly links different Areas of Knowledge (AOKs) and Ways of Knowing (WOKs) studied in other DP subjects.

TOK is central to the IB’s mission of creating reflective thinkers and is mandatory for the diploma.


Need to demystify TOK? Our specialist TOK tutors help students grasp philosophical concepts and excel in both the exhibition and essay.