Use this honestly. This tool is here to help you understand the assessment criteria and strengthen your own thinking — it does not replace your supervisor, who remains your source of formal feedback on assessed work. Always declare your use of AI, and follow your school's academic integrity policy. Read our academic integrity guidance →
Extended Essay Diary Tier 2

Write your Extended Essay
with a mentor that helps you see it as an examiner would.

Every EE section, guided against the current 30-mark criteria. The AI checks each answer for a clear line of argument — and won't judge your discussion before your analysis exists. Single-subject or interdisciplinary, in the four sciences. Export your whole essay as an editable Word document.

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Feedback that understands how an EE is built
Not a generic chatbot. The diary knows how the criteria depend on each other and reviews your work the way a supervisor would.
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Dependency-aware feedback

Ask for feedback on your Discussion & Evaluation before any Analysis exists and it tells you so. A supervisor reads your argument before your evaluation — and so does this.

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Interdisciplinary or single-subject

Flip one switch to write across two disciplines. A guided brainstorming bot, the five thematic frameworks and a second-subject check appear — and the feedback shifts to judge genuine integration of both subjects.

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Foundation check first

Verify your research question, method and literature base as one solid foundation. Everything after is checked against it — so a weak RQ doesn't quietly sink the whole essay.

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Per-question, never generic

Each answer gets three clear parts: what is incorrectly specified, what is required, and a hint to work it out yourself — it never just hands you the answer.

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Tables, images and real equations

Build data tables, add diagrams, and type equations that preview live — and export as genuine, editable Word equations, not pictures.

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One-click Word document — with honest flags

Download your entire EE, compiled from your own answers. Anything still unresolved appears as a clear red review list, so you know exactly what to fix before submission.

Graded on the restructured 30-mark criteria
Feedback is written from the current five criteria for your subject — best-fit and positive marking, so you understand how examiners apply them.
6

A · Focus & Method

6

B · Knowledge & Understanding

6

C · Analysis & Line of Argument

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D · Discussion & Evaluation

4

E · Reflection

Total 30 marks · Criterion D is the highest-weighted, and evaluation must run throughout — not sit in a box at the end.
Cross two subjects, under one framework
Turn on the interdisciplinary approach and register your essay under one of the five IB thematic frameworks. The framework itself isn't graded — it guides your inquiry — but genuine integration of both disciplines is central to Criteria A, B and C, and the diary checks for it.
Framework 1Power, Equality, Justice
Framework 2Culture, Identity, Expression
Framework 3Movement, Time, Space
Framework 4Evidence, Measurement, Innovation
Framework 5Sustainability, Development, Change
Note: ESS is inherently interdisciplinary, so it's always written as a single ESS essay — no toggle there.
It follows the logic of a real investigation
Sections build on each other. The diary respects that order when it reviews your work.
Research Question Focus & Method Knowledge & Literature Analysis Discussion & Evaluation Conclusion Reflection
You can write any section whenever you like — nothing is locked. But if you ask for feedback on a section whose earlier parts are missing, the diary marks that feedback as provisional and reminds you what to complete first. Every such warning is listed in red in your final download.
Structured, guided, and yours to keep
Your work saves automatically, so you can leave and pick up any section at any time.
1

Pick your science

Physics, Chemistry, Biology or ESS — each with EE guidance aligned to the assessment criteria.

2

Single or interdisciplinary

Choose your approach. Interdisciplinary reveals the brainstorming bot, frameworks and second subject.

3

Lock your foundation

Write your RQ, method and literature base, then verify them so everything after rests on a sound base.

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Build & download

Fill each section, get targeted feedback, then export a complete Word document with a red review list.

🔑 This tool uses your own Gemini API key. It is stored only in your browser and never sent to IBHighway servers. You'll be prompted to enter it when you first open the diary. Note — 18+ only: Google requires the Gemini API key holder to be 18 or older. If you are under 18, ask a parent or an elder brother/sister (18+) to create the free key and use it with their permission. Get a free key at Google AI Studio →

Ready to start your EE?

Open the diary, choose your science, and lock in your research question.

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