IB Extended Essay Tips for Beginners: How to Start Strong
If you are starting your IB Extended Essay for the first time, the single most useful thing to know is this: the essay is a 4,000-word independent research paper marked against five official criteria, and most students lose marks in the first two weeks by picking a research question that is too broad to answer properly. Get the topic and question right early, and the rest of the process becomes far more manageable. This guide walks through what the IB Extended Essay actually involves, how to pick a workable topic, what the official format expects, and how the marking works, so you can begin with a clear plan instead of a blank page. What Is the IB Extended Essay? The IB Extended Essay is one of the three core components of the IB Diploma, alongside Theory of Knowledge and CAS. It asks you to investigate a research question of your choosing in a subject you are studying, then present your findings in a 4,000-word paper written under the guidance of a supervisor at your school. Unlike coursework, the Extended Essay is marked by an external IB examiner rather than your own teacher. It can add up to three bonus points to your overall Diploma score when combined with your Theory of Knowledge grade, and a very weak result on either component can put the full Diploma at risk. That combination of upside and risk is exactly why it deserves proper planning from day one, not a rushed attempt squeezed into study leave. Because supervisors are only allowed limited contact hours with each student, a lot of the early decision-making falls on you. Knowing what a strong topic looks like before your first meeting will save weeks of back and forth. How to Choose a Topic for Your IB Extended Essay Pick a topic you can turn into a specific, answerable research question within your subject’s methodology, not a broad theme you find interesting. A good IB Extended Essay research question is narrow enough to investigate properly in 4,000 words and specific enough that a reader could disagree with your conclusion. Compare these two approaches in biology. “What causes cancer?” cannot be answered in an Extended Essay; it is a textbook question, not a research question. A workable version might be “What is the effect of pH on catalase activity in potato tissue, measured by oxygen release rate?” That question names a variable, a method, and a measurable outcome. Most strong ib biology extended essay examples follow this pattern: a controlled variable, a clear method, and data you can actually collect. The subject you choose changes what “good research” looks like. An ib economics extended essay usually works with real-world data, trade statistics, or a case study evaluated against economic theory. An ib english extended essay tends to build a literary argument through close textual analysis rather than experiments. Students preparing for both a Diploma exam load and an essay like this sometimes underestimate how much groundwork subject choice requires. A rough test before you commit: can you list three sources or three experiments you could realistically access within the next month? If not, narrow the topic further. Understanding the IB Extended Essay Format The official structure is fixed, and following it correctly is worth real marks under presentation criteria. A standard Extended Essay includes a title page, a contents page, an introduction, the main body divided into logical sections, a conclusion, a full reference list, and appendices where needed. The abstract that older sessions required has been phased out for most subjects under the current guidelines, so check your subject-specific instructions rather than assuming last year’s template applies. Word count matters too: the 4,000-word limit excludes the title page, contents page, footnotes, and bibliography, but it includes everything in the main body and any in-text citations. Referencing has to be consistent throughout, using one recognised style such as MLA, APA, or Chicago. Examiners are trained to spot inconsistent citation formatting quickly, and it costs marks under presentation even when the underlying research is solid. What the IB Extended Essay Guidelines Actually Require Before you write a single paragraph, read your subject’s official ib extended essay guidelines rather than relying on general advice, including this one, as your only source. Each subject has its own guide covering acceptable methodologies, subject-specific terminology expectations, and examples of research questions that have worked well in the past. Your school will also ask you to sign an academic honesty declaration confirming the essay is your own work and properly sourced. Plagiarism, including AI-generated text passed off as original writing, is treated as a serious breach and can result in the essay being awarded no marks at all. If you are unsure whether a source needs citing, cite it. Time spent checking your subject guide early is far cheaper than reworking a draft after your supervisor flags a structural problem three weeks before the deadline, which is a scenario covered in more depth in our guide to IB exam preparation and time management. How the IB Extended Essay Mark Scheme Works Your Extended Essay is graded out of 34 marks across five criteria under the current assessment model, which applies through the November 2026 session. Criterion A, Focus and Method, is worth 6 marks and looks at how clearly your research question and approach are defined. Criterion B, Knowledge and Understanding, is also worth 6 marks and assesses how well you use subject-specific concepts and terminology. Criterion C, Critical Thinking, carries the most weight at 12 marks and rewards analysis, argument, and evaluation rather than description. Criterion D, Presentation, is worth 4 marks and covers structure, layout, and formatting. Criterion E, Engagement, is worth 6 marks, and unusually, it is assessed almost entirely from your Reflections on Planning and Progress form rather than the essay text itself. Grade boundaries typically run from 27 to 34 marks for an A, down to 0 to 6 for an E, though exact figures shift slightly each session. If