Failing either the Theory of Knowledge (TOK) essay or Creativity, Activity, Service (CAS) component of the IB Diploma Programme can have serious consequences. While the IB is designed to support students in meeting requirements, it is crucial to understand what’s at stake—and how to avoid or address failure.
Failing the TOK Essay
- Failing the TOK essay alone doesn’t automatically mean you fail the diploma. Your final TOK grade is based on both the essay and the exhibition (or presentation in older syllabi).
- If you receive an E grade overall in TOK (from combining essay and exhibition scores), you fail the core requirement and cannot be awarded the IB Diploma, no matter how well you do in your subjects.
- To actually “fail” the essay, it would need to be completely off-topic, not address the prescribed title, or be incoherent. Weak essays typically earn low marks but not outright failure.
- A strong performance on the exhibition can balance a weak essay and help you avoid an E grade overall.
- If you fail TOK, your school may allow a resubmission or require you to retake the course, depending on IB and school policies.
Failing CAS
- CAS is a mandatory core component. Failure to complete CAS satisfactorily means you do not earn the IB Diploma, even if you pass all subjects and other core components.
- CAS isn’t graded, but your school must confirm that you met the learning outcomes. If you fall short, you’ll be required to complete missing work (such as reflections, documentation, or hours) before your diploma is awarded.
What Happens If You Fail Either?
- until all core components (TOK, CAS, and the Extended Essay) and subject requirements are satisfied.
