IB Core

Theory of Knowledge

TOK explores the nature of knowledge and how we know what we claim to know. Students critically reflect on areas of knowledge and ways of knowing.

The central question

“How do we know what we claim to know?”

The course

One core theme, two optional themes, five areas of knowledge

TOK runs alongside the six subjects for both years of the diploma, with at least 100 teaching hours. One part of the assessment is marked in school and the other by IB examiners.

Core theme

Knowledge and the knower

What it means to know something, and how far personal knowledge can be trusted once other people are involved.

Optional themesTwo are studied
  1. 01Knowledge and technology
  2. 02Knowledge and language
  3. 03Knowledge and politics
  4. 04Knowledge and religion
  5. 05Knowledge and indigenous societies
Areas of knowledgeAll five are studied
  • History
  • The human sciences
  • The natural sciences
  • Mathematics
  • The arts
100
teaching hours over two years
3
core points with the Extended Essay
Assessment

An exhibition and an essay

1/3

of the grade

TOK exhibition

Students choose three objects and write a commentary of up to 950 words on one of 35 IB prompts. Teachers mark it and the IB moderates the marks.

2/3

of the grade

TOK essay

An essay of up to 1,600 words on one of six titles the IB prescribes for each session, marked by IB examiners.

Handbook

TOK Handbook

The school handbook explains how the course is taught and what is expected in the TOK exhibition and the TOK essay.

All policies and guides