IB Theory of Knowledge

Our core Theory of Knowledge textbook, written by experts for the 2020 Theory of Knowledge Subject Guide, and our supporting Essentials guide provide your learners with comprehensive coverage of the knowledge framework and engages them in critical thinking and evaluation that’s relevant to their other courses and life outside the classroom.

  • Extremely experienced authoring team of examiners, curriculum reviewers and workshop leaders – Sue Bastian, Julian Kitching and Ric Sims.
  • Provides full coverage of the 2020 Subject Guide including the Core, Optional themes, and Areas of Knowledge.
  • Structured to match the new knowledge framework.
  • Includes examples of knowledge questions to help students recognise and decipher them.
  • Teaches learners how to prepare and evaluate their work, including support for the essay and the new exhibition assessment.
  • Essentials: Theory of Knowledge provides condensed support that is perfect for EAL (English as an Additional Language) learners and ideal for revision.

Download Free Samples and Lesson Plans


Theory of Knowledge 2020 guide

Sue Bastian, the architect of the original TOK curriclum shares her summary of the Spetember 2020 changes and what they mean for you!

Download your Theory of Knowledge guide >


Gateways to Theory of Knowledge

How is knowledge created, communicated and consumed? Find out in this expert blog, full of handy illustrations.

Read the blog >


Teaching the new Theory of Knowledge curriculum from September 2020

Join IB TOK expert Ric Sims as he explores the challenges of the new Theory of Knowledge curriculum and shares his top tips for teaching the new Subject Guide from September 2020 by offering you a sneak peek inside our brand-new textbook.

Recorded: June 18, 2020 at 9:00 AM

Watch the recording >


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