For IB students, the Extended Essay is usually the first major project without a pre-printed rubric. It’s a 4,000-word independent research paper that a student plans, researches, and writes mostly on their own, with a supervisor checking in at set points. In this IB Extended Essay guide, we cover what the assignment involves, the structure examiners expect, and how it’s graded.
What Is the IB Extended Essay?
The Extended Essay (EE) is one of three core components of the IB Diploma Programme. Where a normal subject assignment is marked against a class rubric, the EE asks the student to register a topic within one of their IB Diploma Programme subjects, form a research question, and investigate it independently over roughly a year.
A subject supervisor, usually a teacher in that discipline, meets the student periodically, but the research, argument, and final 4,000-word paper are the student’s own work.
IB Extended Essay Requirements
Before writing begins, a few things need to be in place. The topic must sit within one of the six subject groups the student studies, or occasionally as a World Studies essay spanning two disciplines. The student proposes a research question that’s narrow enough to investigate properly in 4,000 words.
Throughout the process, the student and supervisor hold a small number of reflection sessions, documented in the Reflections on Planning and Progress Form (RPPF), which factors into the final grade. Also, academic honesty is non-negotiable here. Forgetting to credit your sources can seriously ding your grades and might even violate IB policy.
How to Choose IB Extended Essay Topics
The strongest IB Extended Essay topics start from genuine curiosity. A student who actually wants to know the answer to their research question will stay motivated through months of independent work. One who picked a “safe” topic often stalls by month three. Having said that, the practical filter is narrowness. For example, “the causes of World War II” isn’t researchable in 4,000 words, but “how rationing policy shaped British public opinion in one specific region between 1940 and 1943” is.
Therefore, talking the idea through with a subject teacher early usually saves weeks of rework later.
IB Extended Essay Structure
A typical EE follows a consistent shape, even though word distribution varies slightly by subject. The introduction (roughly 600 words) sets out the topic, states the research question, and outlines the approach. The main body carries the bulk of the argument and evidence, built around a clear line of reasoning. The conclusion (around 300–400 words) answers the research question directly, notes any limitations, and can flag areas for further research. A title page, contents page, and full references or bibliography complete the paper, along with the RPPF reflections submitted alongside it.
IB Extended Essay Word Count
The word count is a hard limit, not a suggestion: 4,000 words maximum, covering the introduction, body, conclusion, and any quotations. Examiners are instructed to stop reading once a paper crosses that line, so anything beyond it isn’t assessed. However, contents pages, diagrams, tables, equations, citations, the bibliography, and appendices don’t count toward the limit. Therefore, students should keep the appendix for supporting material rather than padding it with the main argument.
How to Write an IB Extended Essay
Writing an IB Extended Essay is usually a step-by-step process. It usually starts with choosing a suitable subject and developing a focused research question. From there, you work with your supervisor to narrow and improve the question before moving into research, source collection, or experimentation.
Once you have gathered enough material, the next stage is writing the first complete draft. During the scheduled reflection sessions, your supervisor helps you identify areas that need clarification, stronger evidence, or better analysis. The process concludes with the viva voce, a brief discussion with your supervisor that provides an opportunity to reflect on your research journey and confirms that the work represents your own efforts.
A well-planned timeline makes a big difference. Spreading the work across DP1 and the beginning of DP2 gives you time to research properly, write thoughtfully, reflect on feedback, and make meaningful revisions.
IB Extended Essay Assessment
The Extended Essay is graded externally by an IB examiner against five criteria:
- Focus and Method
- Knowledge and Understanding
- Critical Thinking
- Presentation and
- Engagement
These criteria add up to 34 marks, mapping out your final grade on a scale from A to E. That grade is combined with the TOK grade to award up to three bonus points toward the overall Diploma score. Therefore, a strong EE can meaningfully lift your final result. However, the stakes work both ways. Receiving an E in either the EE or TOK leads to an automatic failure of the Diploma. That’s why the IB places such great emphasis on the quality and completion of this research project.
Why the IB Diploma Extended Essay Matters Beyond the Score
Bonus points aside, the IB Diploma Extended Essay is often the first sustained research project a student completes, and universities notice this. It demonstrates the ability to form a question, manage a long-term project independently, and defend an argument with evidence — skills that map directly onto undergraduate coursework. Our alumni who’ve gone through this process have gone on to reputed universities across multiple countries, often pointing back to the EE as their first real taste of independent academic work.
The Extended Essay at Treamis is a core part of the wider Diploma Programme. This gives supervisors the opportunity to spend meaningful time with individual students, understand their research interests, and provide guidance throughout the process. IB-trained educators support students at every stage, from narrowing down a topic and developing a research question to completing the final viva voce. Students also have access to broader career counseling and student mentoring throughout their Diploma years.
For parents considering IBDP admissions for Grade 11, asking how the school approaches Extended Essay supervision can offer useful insight into the level of academic support students receive. It is also a practical question to raise when comparing different IB schools.
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FAQs
- What is the IB Extended Essay in simple terms?
It’s a 4,000-word independent research paper that IB Diploma students write on a topic of their choice within one of their subjects, supervised by a teacher but researched and written largely on their own.
- How long does the IB Extended Essay take to write?
Most students spread the process across roughly a year, from topic selection in Grade 11 through final submission in Grade 12..
- Can I choose any topic for my Extended Essay?
The topic must fall within one of the six IB subject groups (or bridge two as a World Studies essay), and it needs a research question narrow enough to investigate properly within 4,000 words.
- What happens if my Extended Essay goes over the word count?
Examiners stop assessing content beyond the 4,000-word limit, so anything written past that point earns no credit.
- How is the Extended Essay graded?
An external IB examiner scores it against five criteria worth 34 marks total, resulting in a grade from A to E, which combines with the TOK grade for bonus Diploma points.