TOK Exhibition: How to Choose Objects and Write the Commentary

The TOK exhibition is an individual internal assessment in which an IB Diploma learner chooses one of 35 prescribed IA prompts and uses three specific real-world objects to explore how TOK appears in the world. The commentary identifies each object's context, explains its link to the same prompt and justifies its distinct contribution with appropriate evidence and references.

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Specificity Beats Clever Symbolism

The examples below are teacher-created illustrations, not authenticated IB submissions, examiner comments or predicted marks. Use them to discuss object specificity and prompt alignment, then check the official assessment instrument.

For example, a specific archive photograph with contrasting captions can support a discussion of how source language, editorial choices and historical context shape knowledge. The value lies in the explicit link between that object and the selected prompt.

The difference isn't that one student picked a rare object and the other picked a common one. The difference is specificity. The first student chose an object, then hunted for a matching prompt. The second student started with the prompt's knowledge question, then chose an object that directly illuminates it.

This article explains the official task, offers a practical prompt-first planning method and labels its examples as teacher-created. Use it alongside the current IB guide and the broader Theory of Knowledge teacher guide.

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The 2022 TOK Exhibition Structure: What's Actually Being Assessed

The TOK Exhibition launched in 2022 and replaced the older Internal Assessment format. Many teachers and learners still carry misconceptions about how it's marked, so let's be clear about the structure first.

You select one of 35 prescribed IA prompts and create an exhibition using three specific real-world objects, or images of objects. The single submitted file contains a commentary on each object, with a maximum of 950 words across all three.

The exhibition is marked holistically out of 10 using the TOK exhibition assessment instrument and contributes one-third of the final TOK grade. Strong work identifies each object and its real-world context, explains its link to the selected prompt, justifies its distinct contribution and supports points with evidence and explicit prompt references.

The current assessment instrument uses one driving question and holistic performance descriptors. It does not divide the exhibition into separate A, B and C criteria.

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The Fatal Error: Choosing Your Object First

Most learners get this backwards. Students often think, "My phone is perfect for the modern world," or "My grandmother's photo has special meaning." After that, they search through the many prompts to find one that fits their chosen item.

Choosing an object first can lead to a forced or generic prompt link. Begin with a prescribed prompt, clarify what it asks, then choose objects whose specific contexts help explore it.

Here is a fictional teaching example. A learner links an iPhone to a prompt about intuition but explains only that the interface feels intuitive. The link remains weak because the object is not used to examine when intuition is or is not dependable.

A stronger fictional example might use a recorded chess position to compare an intuitive move with later analysis. The object can then provide specific evidence about when trained intuition succeeds, when it fails and how that relates to the prompt.

The prompt-first process forces you to think logically. You're not decorating an object with philosophy; you're using an object to answer a knowledge question.

Use this checklist before you commit to an object:

• [ ] I have read the prompt's exact wording.
• [ ] I can articulate the knowledge question in my own words.
• [ ] I can explain which details from the object help explore the exact prescribed prompt.
• [ ] I have chosen an object that directly illuminates that question, not metaphorically, but evidentially.
• [ ] I can explain in one sentence why this object matters to this question.

If any box stays unchecked, you're not ready. Restart with a different object or a different prompt.

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A Practical Commentary Structure for Each Object

Use the same practical sequence for each object: identify it and its specific context, explain its link to the prompt, justify what it contributes and support the explanation with evidence and references.

Step 1: State and interpret the prescribed prompt.

State the prescribed prompt exactly, then explain the aspect your object will help explore. Keep the explanation tied to the wording of the prompt.

Example: "My prompt is ‘Is bias inevitable in the production of knowledge?’ I will examine how the object's context helps explore that exact question."

Step 2: Identify the object and its real-world context.

Identify the specific object, where and when it exists, and why that context matters to the prompt. Give enough precise detail for a reader to understand how the object functions as evidence.

Step 3: Explain and justify the object-prompt link.

Explain how details from the object support the link to the prompt and why this object makes a distinct contribution to the exhibition. Use relevant evidence and references for factual claims.

Step 4: Test the explanation where useful.

A limitation or alternative interpretation can strengthen an explanation when it is relevant. It is optional rather than a separate assessment criterion, so include it only when it helps justify the object's contribution to the prompt.

Use the remaining words to strengthen the object's context, evidence, prompt link or distinct contribution. The official examiner guidance does not recommend adding a separate conclusion to each object commentary.

Critical Do-Nots: - Don't write as if the object is a symbol. Avoid "represents," "signifies," "embodies." - Don't assert claims without linking them to the object. - Don't assume the reader knows your prompt. Restate it. - Don't exceed 950 words. Rambling signals unclear thinking.

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Teacher-Created Object Commentary Example

The following is a teacher-created illustrative excerpt for one object. It is not a complete exhibition, authenticated student work or examiner feedback; a complete submission requires three objects linked to the same prompt.

Prescribed prompt: "What are the implications of having, or not having, knowledge?"

Student's Object: A literacy primer from colonial India (early 20th century)

Student's Full Commentary:

The prompt asks what follows when knowledge is available to some people and unavailable to others. The object is a literacy primer produced by British administrators in colonial India to teach English literacy to Indian students.

The primer can help explore the implications of unequal access to language and institutional knowledge. English literacy could affect access to government employment, while the text also carried British cultural assumptions. The object therefore provides a specific context for examining who could use particular knowledge and what opportunities followed.

The implications were not one-directional. Some learners used English to read colonial law and articulate anti-colonial arguments, so access to the same knowledge could support both administration and resistance.

The primer also raises questions about who selected the knowledge taught and which languages were treated as legitimate. That context helps justify the object's contribution to the prescribed prompt without claiming that the object proves a universal rule.

Teacher discussion prompt:

Discuss how clearly the excerpt identifies the object and context, links details from the object to the prescribed prompt and justifies the object's distinct contribution. Apply the official descriptors holistically rather than predicting a band.

Why This Is Strong

• Uses the object as specific evidence, not vague symbolism.
• Engages with the knowledge question's tension (power for whom? in what direction?).
• Names limitations and alternative views.
• Explores different implications of access to knowledge rather than asserting one universal effect.

How It Could Be Stronger

This excerpt can be improved by making the prompt link and the object's distinct contribution more explicit. It remains only one part of a three-object exhibition.

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Five Questions to Ask Before You Submit

Run through this checklist before you hand in your Exhibition. If you answer "no" to any question, rewrite that section.

1. Have I used one prescribed IA prompt exactly as written for all three objects?
2. Have I identified the specific object and its real-world context clearly enough for the reader to understand its role?
3. Have I linked specific details from the object to the exact prescribed prompt and justified what this object contributes? If not, revise the explanation around object, context, prompt and evidence.
4. Have I justified this object's distinct contribution to the exhibition? Include a limitation or alternative interpretation only when it strengthens that justification.
5. Have I supported factual claims with appropriate evidence and references, then linked that evidence back to the prescribed prompt?

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