IB TOK Exhibition Guide: How to Nail Every Stage

The IB TOK Exhibition trips up a lot of students, not because it is hard in the way exams are hard, but because it is unfamiliar. There are no past papers, no mark scheme with worked solutions, and no single right answer. What you are being asked to do is show that you can see how knowledge works in the real world, through three actual objects, in roughly 950 carefully chosen words.

This guide walks you through every stage: what the exhibition actually requires, how to choose a strong IA Prompt, how to find objects that do genuine argumentative work, and how to write commentary that earns marks rather than just describing things.

To do the TOK Exhibition well: choose one of the IBO's 35 IA Prompts where you can develop a clear, interesting line of thinking; select three specific, real-world objects that each illuminate the prompt from a different angle; and write focused commentary showing exactly how each object connects to knowledge, not just to the topic. Maximum 950 words total. Worth 33% of your TOK grade.

What the TOK Exhibition actually is

The TOK Exhibition was introduced with the 2022 IB TOK curriculum redesign and replaced the old TOK Presentation. It is an internally assessed component: your teacher marks it using the IBO's published criteria, and the IBO moderates a sample from your school to check marking standards are consistent.

The core task: you choose one IA Prompt from the list of 35 published by the IBO, select three real-world objects, and write a commentary (maximum 950 words across all three) explaining how each object connects to your chosen prompt and illustrates a real-world manifestation of TOK.

The word "exhibition" is deliberate. You are not writing an essay. You are curating objects, the way an exhibition curator would, and the commentary explains the thinking behind the curation.

The exhibition is worth 33% of your total TOK grade. The TOK Essay accounts for the remaining 67%. Both components are required to complete the IB Diploma, and both are graded on the same A to E scale, which feeds into the TOK and Extended Essay bonus points calculation (up to 3 additional points on your IB total, as described in the TOK Essay guide).

Choosing the right IA Prompt

The IBO publishes a set of 35 IA Prompts, which are made available through your school at the start of the exhibition process. Examples of the kind of prompts on the list include:

• "What counts as knowledge?"
• "Are some types of knowledge more useful than others?"
• "What role does imagination play in producing knowledge about the world?"
• "How do we judge whether or not a new claim is credible?"
• "What makes a good explanation?"
• "Is replication possible in the production of knowledge?"

The prompts cover a wide range, and choosing well makes everything else easier. A good choice is a prompt where:

You can find three genuinely different objects. If you can only think of one object that connects to a prompt, it is probably too narrow. Good prompts have breadth: they can be illustrated through a scientific discovery, a historical event, an artistic work, and many other real-world contexts.

The prompt allows you to say something specific. "What counts as knowledge?" is wide enough to make it hard to say anything precise. "Is replication possible in the production of knowledge?" is sharper. Sharper prompts produce better commentary because they force concrete thinking.

You find it genuinely interesting. The commentary will be much easier to write if you care about the prompt. A student who picked "What role does imagination play in producing knowledge?" because they are genuinely interested in how scientific discovery works will write better commentary than someone who picked it at random.

Read all 35 prompts before committing. For each, sketch one or two objects that might work. The prompt with the most interesting object ideas is usually the right choice.

Selecting your three objects

This is where most students go wrong. The IBO is specific: objects must be real-world items, not generic examples or textbook illustrations.

What counts as a real-world object:

• A specific photograph (e.g. "Earthrise" by William Anders, taken during Apollo 8 in December 1968)
• A particular scientific paper or finding (e.g. the original announcement of the discovery of CRISPR-Cas9 gene editing by Jennifer Doudna and Emmanuelle Charpentier, published in Science in 2012)
• A named court ruling or legal document
• A specific piece of music, artwork, or literature
• A known piece of technology or tool, in its specific context
• A real news event or published report

What does NOT count:

• "A photograph" without a specific one identified
• "A scientific experiment" as a general category
• Made-up scenarios or imagined examples
• Textbook diagrams or standard curriculum examples presented as real-world objects

The test the IBO applies is essentially: could this object appear in a real exhibition? Does it exist in the world independently of TOK? A poster with a generic image of a scientist does not pass this test. A photograph of Rosalind Franklin at her X-ray diffraction equipment, in its specific historical context, does.

Aim for variety across your three objects. If all three objects are from Natural science, you are limiting yourself. Three objects from different areas (history, science, art, for example) let you develop the prompt from genuinely different angles and demonstrate broader understanding of how knowledge works across contexts.

Each object should add something the others do not. If two objects are making essentially the same point about the prompt, replace one. The ideal is three objects that together build a layered picture: one that establishes a clear case, one that complicates or extends it, and one that shows the idea in a completely different domain.

Writing the commentary

The commentary is where the exhibition is won or lost, and it is genuinely the hardest part. You have a maximum of 950 words across all three objects: roughly 300 words per object, which is less room than it sounds.

Each object's commentary needs to do three things:

1. Identify the object and its real-world context. Where does it come from? What is its significance in the world, independent of TOK? This is brief, but it matters, because it establishes that the object is genuinely real-world.

2. Explain the TOK connection. What does this object reveal about knowledge? How does it relate to your IA Prompt? This is the core of the commentary and should be specific, not generic. "This shows that knowledge can be limited by perspective" is not enough. "This photograph, taken immediately after the verdict was announced, illustrates how media framing shapes what counts as politically credible knowledge at a particular historical moment" is the kind of specificity that earns marks.

3. Connect back to the IA Prompt explicitly. The examiner should be in no doubt about how this object addresses the prompt you chose. Do not leave the connection implicit. State it directly.

A common mistake is spending most of the word count describing the object and barely any of it on the TOK analysis. The IBO's criteria reward insightful TOK reasoning, not thorough descriptions. If you find yourself writing long paragraphs about what the object is, cut them and add more on what it reveals about knowledge.

Another common mistake is treating the three commentaries as three separate, unconnected pieces. The objects should feel like a curated selection: the commentary can briefly acknowledge how the three objects relate to each other within the prompt.

Here is where the exhibition becomes genuinely demanding. Articulating exactly how a real object illustrates a specific philosophical point about knowledge, in clear, concise language, without either being vague or over-claiming, is a skill that takes practice and honest feedback to develop.

Root is an adaptive tutor that learns how your brain thinks and manages your whole study schedule for you: rather than handing over answers, it asks the questions that help you work out what you actually mean, checks whether your reasoning holds up, and remembers which approaches click for you. A lot of students find it useful specifically for TOK because the Socratic questioning it uses is exactly how you need to be thinking to write a strong exhibition commentary. On the free plan there are 60 tutor messages a week across two active units, 2 exam-style practice tests a week with examiner-style marking, a revision mode that finds weak areas and brings them back until they stick, notes and flashcards, and no card details needed. Here is a full breakdown of what Root does, or try it free at onboarding.

How the exhibition is marked

The IBO publishes the full assessment criteria in the TOK Subject Guide (available through your school or the My IB portal). The criteria assess:

Whether the objects are genuinely real-world. Objects that are too generic or that read as invented examples score poorly here. This is a pass-or-fail type criterion in practice: if the objects are not clearly real-world, the rest of the commentary cannot compensate.

The quality of the TOK insight. This is the main differentiator between average and strong exhibitions. The commentary should show genuine philosophical thinking about knowledge, not just surface-level description. The IBO calls this demonstrating "TOK thinking" in a real-world context.

How clearly the prompt is addressed. The objects and commentary must connect to the specific IA Prompt you chose, not to TOK in general. An exhibition that demonstrates wide knowledge of TOK concepts but never really addresses the prompt will not score in the top bands.

Your teacher marks the exhibition using these criteria and submits a predicted grade. The IBO then moderates a sample of exhibitions from your school, adjusting marks where there is a systematic difference between teacher and IBO standards. This means your exhibition is effectively marked twice, and it is worth writing it with the IBO's criteria in mind from the start, not just your teacher's expectations.

Common mistakes to avoid

Choosing objects that are too similar. Three objects all from Natural science, or all historical events from the same period, reduce the range of your exhibition and limit what you can say.

Being too abstract. The point of the exhibition is to ground TOK in real-world objects. Commentary that drifts into abstract philosophical discussion, detached from the specific object, misses the purpose of the task.

Describing rather than analysing. Length spent describing what an object is takes space away from the more important question: what does it reveal about knowledge?

Choosing a famous object you cannot say anything specific about. "The Mona Lisa" is a real-world object, but it is so widely discussed that it is hard to say anything original or precise about it. Objects from domains you know well, or that connect to knowledge claims you have thought about seriously, usually produce better commentary.

Leaving it to the last minute. Because the exhibition does not have the formal structure of a written exam, students often underestimate how long it takes to choose objects that genuinely work, draft and revise the commentary, and incorporate teacher feedback. Aim to have a first draft ready at least three to four weeks before the school deadline.

When to complete the exhibition

For May session students, the exhibition is typically completed in Year 1 or early Year 2, before the TOK Essay takes priority. Many schools set an internal exhibition deadline in autumn or spring of Year 2. Starting the process in September of Year 1 is ideal: you will have time to revise your object choices after initial teacher feedback, and you will not be completing it alongside the Extended Essay final submission or your internal assessments.

For November session students, check your school's timeline carefully. The submission windows are tighter, and starting early is even more important.

The IBO publishes the official TOK Subject Guide and sample assessed exhibitions on the IBO website, which is the most reliable source for the current assessment criteria.

Summary

• Choose one of the IBO's 35 IA Prompts where you can find three different, genuinely real-world objects that illuminate it from different angles.
• Objects must be specific: a named photograph, a particular scientific paper, a real event, not generic examples.
• Write up to 950 words across all three objects: roughly 300 words each, split between establishing context and developing the TOK analysis.
• Prioritise insight over description. The marks are for the quality of your TOK reasoning, not for how thoroughly you describe the objects.
• Start early. Teacher feedback is part of the process, and the revision takes longer than most students expect.

For the broader picture of managing all your IB components alongside six subjects, the IB revision timetable guide covers building a year-long plan that keeps exhibitions, EE, and exam revision on schedule. If you are also working on the Extended Essay at the same time, the extended essay guide and IA tips guide are worth reading back-to-back. The full guide to studying for the IB covers the broader strategic picture.