IB Mathematics Internal Assessment
Personal engagement is the criterion students misunderstand most. They think it means saying they are passionate about mathematics. It does not. A reader is looking for evidence that the exploration is yours: that you chose it, shaped it and made decisions inside it. Here are twelve ways that evidence shows up on the page.
Personal engagement is criterion C. In my own words: it asks whether the work reads as the product of one particular student thinking, rather than something that could have been assembled by anybody from a textbook or a website. Enthusiasm is not evidence. Choices are.
That matters because you cannot bolt it on at the end. A sentence such as "I have always loved this topic" adds nothing, and experienced readers skim past it. What they notice is whether your decisions are visible. So the aim of this guide is to show you twelve places where decisions naturally occur, so you can make them and let them show.
A claim of interest with nothing behind it. It would sit equally well in ten thousand explorations, so it tells the reader nothing about this one.
You decide to log your own penalty practice for a term, notice that your tired sessions look different, and change what you measure as a result. The reader can see a person acting on a question, and no claim of interest is needed.
The exploration goes straight from question to answer with every step smooth and every method chosen without comment. The reader has no way to tell whether you made the choices or copied a route that someone else had already worked out.
You say the first model did not fit your readings, explain what you noticed, and describe why the second one suited your situation better. Two or three sentences like that do more for this criterion than a page of general enthusiasm.
Notice that neither of these needs special writing skill. It only needs you to keep notes as you work: what you tried, what you changed, what surprised you. Keep a simple log from the first week and most of the evidence is already there when you come to write up.
No single item on the list carries the criterion. A student who only does number one, choosing a topic they care about, and then follows a standard textbook route has shown interest but not much ownership. A student who does six, nine and ten inside a topic they only mildly liked will often be read more favourably. Engagement is the accumulation of visible decisions across the whole document.
A sensible target is to have several of these appear naturally, in different sections, rather than clustered in the introduction.
Pick any page and ask: could a different student have written this, with different numbers? If the answer is yes, look for a place to add a decision you made, a thing that surprised you, or a reason you chose one route over another. Do that on three or four pages and the whole document changes.
One caution. Your reasons must be true. Nobody can write your decisions for you, and they should not try. What I can do is help you notice the decisions you have already made and are not yet showing.
Not sure your exploration sounds like you?
Send me your draft or your plan. I read real submitted explorations every year, and I will tell you honestly where your own thinking shows and where it is hidden, while there is still time to change it.
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Written by a serving IB Diploma and Career-related Programme Coordinator and Head of Mathematics, who reads internal assessments across every subject group every year. If you then want the whole draft reviewed properly against all five criteria, that is the paid one, and it is refunded if it does not name at least three specific things to fix.
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