The TOK optional themes are five different epistemic ‘affiliations’ that shape the way we acquire knowledge. They include knowledge and indigenous societies, language, politics, religion, and technology.
Students are required to develop a detailed understanding of at least two optional themes, and demonstrate their learning in their TOK exhibition commentary.

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Explore the optional themes
Click below to explore our extensive free notes on the themes, structured around both the Big Questions and the knowledge framework.
Whether you’re following a conceptual or a more traditional approach to TOK, you will find material here to support teaching and learning.

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