Why This Matters

"My statement of inquiry is a sentence I made up to fill a box."

You're not the first MYP teacher to admit that quietly. Statements of inquiry get treated as paperwork because nobody showed you what a working one actually does for a unit. A weak SOI sits at the top of the planner and never gets mentioned again — not in lesson one, not in lesson ten, not in the summative task. A strong SOI is the sentence you keep returning to, out loud, in class: "Remember what we said the relationship was..."

This is the highest-value article in this handbook, because the SOI is the unit's thesis. If it's decorative, every other design decision in the unit becomes decorative too — including the summative task you'll build in Article 14.

Understand the Idea

A statement of inquiry, in current MYP planning practice, is a single sentence written by the teacher (sometimes co-constructed with students) that expresses a relationship between concepts, framed through a global context, that the unit will investigate. That's the official function, in general terms — schools and workshop leaders phrase the exact construction rules slightly differently, and MyIBHub recommends you check your subject guide and your school's current planner template for the precise wording your programme coordinator expects.

Here's the distinction that matters most, and it's the one almost every new teacher misses at first: a statement of inquiry is not a summary of the topic. "Industrialisation changed society" is true, checkable, and completely unhelpful as an SOI. It doesn't claim anything a student could disagree with, investigate, or transfer to a different topic next year. It's a fact dressed up as a thesis.

A working SOI states a relationship — it says that one conceptual idea does something to, or interacts with, another. Compare: "Rapid change in a society's systems of production can force groups to renegotiate whose account of events is treated as true." That sentence connects the key concept change to the related concept perspective, via the idea of causality (systems of production causing a renegotiation of whose story counts). It's not a fact you look up. It's a claim you test.

Four qualities separate a working SOI from a filler sentence. MyIBHub treats these as a practical, teacher-usable checklist — not a verbatim reproduction of any official rubric:

1. It's a relationship, not a topic summary. Ask: does this sentence connect two or more concepts through a verb that implies influence, tension, or change — words like "shapes," "can force," "depends on," "is contested by" — rather than a verb that just states a fact?

2. It's transferable. A genuinely conceptual SOI should survive being lifted out of this specific topic and applied somewhere else. "Rapid change in production can force a renegotiation of whose perspective is believed" also describes the printing press, the rise of social media, or the introduction of AI marking tools in a school. If your SOI only makes sense when you swap in the word "industrialisation," it's still a topic sentence wearing a disguise.

3. It's contestable or investigable. A strong SOI invites the question "is that actually true, always?" rather than the question "what happened?" Students should be able to find evidence that complicates or partly contradicts it — that's what makes it worth a unit of inquiry rather than a single reading.

4. A student could tell you, in their own words, what it's claiming. This is the clarity test, and it's easy to skip. An SOI that only makes sense to the adult who wrote it has failed at its actual job, which is to orient thirteen-year-olds, not impress a moderator.

🧠 Teacher insight: A useful rule of thumb — if your SOI could be answered fully and correctly with a Wikipedia paragraph, it's a summary, not a relationship. If it needs an argument, evidence, and a "yes, but" to answer properly, you're closer.

There's a reason so many first-draft SOIs land on a summary instead of a relationship: a summary is safe. It can't be wrong, it doesn't commit you to a position, and it's easy to write under a Sunday-night deadline. A relationship is riskier — you're claiming something a colleague, a student, or even you in six months might push back on. That risk is exactly the point. An SOI that can't be disagreed with can't organise an inquiry, because there's nothing left to inquire into. Building the habit of writing the riskier sentence, on purpose, is most of what this article is trying to teach.

It also helps to know what an SOI is not trying to do. It isn't a learning objective (those describe what students should be able to do by the end of a course, set at subject-group level). It isn't a unit title, and it isn't a "big question" in the way some non-MYP inquiry programmes use that phrase — those are closer to what the MYP calls inquiry questions, which you'll build in Article 13 directly from this SOI. Keeping these categories distinct matters because conflating them is exactly how an SOI ends up doing a title's job — naming the topic — instead of a thesis's job, which is claiming something about it.

📌 Official source: Current guidance on constructing statements of inquiry — including any required components like key concept, related concepts, and global context exploration — is published in the MYP: From Principles into Practice guide and subject-specific guides available through the IB programme resource centre. Check the version current to your school's authorisation, since language has been revised across MYP guide editions.

See It in Practice

Let's build the Grade 8 Individuals and Societies unit's SOI live, from the concepts you named in Article 11: key concept change, related concepts causality and perspective, global context in the territory of "fairness and development" (confirm your own school's exact context wording), topic industrialisation.

Draft one — weak. "Industrialisation changed the way people lived and worked."

Run it against the four tests. Is it a relationship? No — "changed" here is just reporting a fact, not connecting two concepts through influence or tension. Is it transferable? Not really — it's glued to the specific historical topic and doesn't generalise. Is it contestable? Barely — nobody would seriously argue industrialisation didn't change how people lived and worked, so there's nothing to investigate. Would a student understand what it claims? Yes, but there's nothing to claim — it's a caption, not a thesis. Three of four tests fail.

Draft two — acceptable, but still soft. "Changes in production caused people to see progress differently."

Better — there's a hint of causality and a hint of perspective. Is it a relationship? Getting there — "caused... to see differently" gestures at influence. Is it transferable? Somewhat — you could imagine applying it to other kinds of change. Is it contestable? Weakly — "differently" is vague enough that it's hard to argue against or test with evidence. Would a student understand it? Mostly, but "see progress differently" is fuzzy — differently how? This draft is workable under deadline pressure, but it hasn't earned its place as a unit's thesis yet.

Draft three — strong. "Rapid change in a society's systems of production can force different groups to compete over whose account of progress is believed."

Test it. Relationship: yes — "can force... to compete over" is a real claim about how change and perspective interact, not a fact recap. Transferable: yes — swap "systems of production" for "systems of communication" and the sentence still works for a unit on the printing press or social media; that's the transferability test passing cleanly. Contestable: yes — a student could argue the opposite, that shared accounts of progress emerge naturally rather than through competition, and go looking for evidence either way. Student-clear: yes, with unpacking — a Grade 8 student can restate this as "when things change fast, people disagree about who benefits, and whoever tells the story loudest often gets believed" — which is exactly the kind of paraphrase you want to hear back from them in lesson one.

⚠️ Common trap: the "and" statement. A frequent halfway-house is an SOI that just lists two ideas with "and" instead of relating them — "Industrialisation involved change and different perspectives on progress." That's not a relationship, it's a list. If you can replace your "and" with "which meant that" or "which forced" and the sentence still makes a coherent claim, you likely have a real relationship. If it falls apart, you have a list.
🧭 Planning decision: Write your own draft three now, in your actual planner, even if it's rough. You'll refine it in a moment, but a rough strong-shaped sentence beats a polished weak one.

Apply It

Teacher Activity: Draft, test, revise once.

  1. Using your own unit's key concept, related concepts, and global context, write one SOI draft — don't self-censor, just get a sentence down.
  2. Run it against the four-part test from "Understand the Idea":

- Is it a relationship (a verb of influence, not a verb of description)? - Is it transferable beyond this specific topic? - Is it contestable — could a thoughtful student disagree and go find evidence? - Would a student, in their own words, be able to say what it claims?

  1. Circle whichever test your draft fails most clearly. That tells you exactly what to fix: a summary problem needs a stronger verb of influence; a transferability problem needs you to swap out the topic-specific noun for a more general one and check the sentence still holds; a contestability problem needs you to sharpen the claim until a reasonable person could push back; a clarity problem needs shorter, plainer words.
  2. Rewrite the sentence once, addressing that one weakness.

Artefact to produce now: Two sentences side by side in your planner — your original draft and your revised version — plus a one-line note on which test drove the revision. That note is useful later: when a colleague or coordinator asks why the SOI reads the way it does, you'll have the reasoning on hand instead of reconstructing it from memory.

🛑 Do this now: Read your revised SOI out loud, to yourself, as if you were saying it to a class of thirteen-year-olds on day one. If you stumble or need to add "basically, what this means is..." immediately afterward, your sentence isn't student-facing yet — simplify the vocabulary without losing the relationship.

Avoid This

The summary in disguise. "Industrialisation changed society" and its cousins ("the industrial revolution had positive and negative effects") describe the topic without claiming a relationship. Fix: find the verb of influence — caused, forced, depended on, was contested by — and rebuild the sentence around it.

The jargon pile-up. Some teachers, trying to sound conceptual, cram in every related concept and global context term at once, producing a sentence no student could parse: "The interconnectedness of systems within fairness and development contexts necessitates a re-evaluation of perspective causality paradigms." Fix: say it in plain language first, then check it still contains a real concept relationship — don't reverse that order.

The unfalsifiable truism. "Change affects people" is technically a relationship, but it's so broad it's uncontestable — nobody could disagree, so there's nothing to investigate. Fix: narrow it until a reasonable, informed person could argue the other side.

Writing it once and never returning to it. Even a strong SOI is wasted if it only appears on the planner. Fix: plan explicitly (you'll do this in Article 15) for moments in the unit where you say it out loud and ask students to test it against new evidence.

Check Yourself

Take your revised SOI from the Apply It section. Can you state, in one sentence each, which related concept it foregrounds and why a thoughtful student could disagree with it? If you can answer both without re-reading your own SOI, it's doing its job.

Continue Learning

→ Next: Article 13 turns this statement of inquiry into a working set of factual, conceptual, and debatable inquiry questions.

📎 Download: Statement of Inquiry Builder — a drafting template with the four-part test built in.
📌 Official source: For current SOI construction guidance specific to your subject group, consult your subject guide via the IB programme resource centre — wording and required components have varied across guide editions.