What is a markband?

A markband is the IB's version of what UK students call a "levels of response" mark scheme, but it works differently in practice. A GCSE or A-Level mark scheme usually lists bullet-pointed criteria your answer has to hit to reach each level. An IB markband describes the overall character of a response in a paragraph of prose instead.

An examiner reads your answer in full, decides which band description most closely matches what they've just read, then awards a mark within that band's range. There's no checklist. No individual points to tick off. It's a holistic judgement.

Why this matters for how you write

Students moving from GCSE or A-Level to IB, or comparing notes with friends still doing A-Levels, often try to approach IB essays the same way: hunting for mark scheme points and making sure every one gets covered. That's the wrong strategy for IB extended response questions.

Because the markband is holistic, the quality of your argument matters more than how much ground it covers. An answer that develops two points well, with specific evidence and genuine evaluation, beats one that skims across five points superficially. The examiner isn't counting. They're reading.

The structure of a markband

Most IB extended response markbands follow the same general structure across subjects. Here's an example based on a 10-mark IB History essay question:

9–10 marksTop band
Responses demonstrate a very good understanding of the demands of the question. Answers are well structured and coherent. Arguments are developed and supported with accurate and relevant evidence. There is clear and effective evaluation.
7–8 marksUpper band
Responses demonstrate a good understanding of the demands of the question. Answers are structured and mostly coherent. Arguments are developed and supported with mostly accurate evidence. Evaluation is present but may be limited in scope.
5–6 marksMiddle band
Responses demonstrate an adequate understanding of the demands of the question. There is some structure but it may be inconsistent. Arguments are made with limited development. There is little or no evaluation.
3–4 marksLower band
Responses demonstrate a basic understanding. Statements are made but are not developed into arguments. Little or no attempt to structure the response.
1–2 marksMinimal
Responses show limited understanding. Mostly description with no analysis or evaluation.

The words that separate bands

Read enough markbands and the same vocabulary shift shows up across subjects. These are the words that separate each band from the one above it:

  • Bottom → middle: "statements" become "arguments." You stop asserting things and start reasoning about why they're true.
  • Middle → upper: "limited" becomes "present." Evaluation shows up. You start acknowledging counterarguments or limitations.
  • Upper → top: "good" becomes "very good." "Present but limited" becomes "clear and effective." Your evaluation stops being a gesture and starts being genuinely analytical, reaching a reasoned judgement.

That tells you exactly where to focus your effort. Most students who plateau at 6–7 are producing well-structured arguments but not evaluating effectively. Weaving evaluation through your analysis, rather than tagging it on as a separate paragraph at the end, is the single highest-leverage improvement you can make.

Markbands and subject-specific mark schemes

Generic markbands describe quality in general terms. After each exam session the IB also publishes a subject-specific mark scheme (called a "marking notes" or "clarification notes" document) listing the specific content, arguments and examples examiners expected to see in that year's questions. It's the IB equivalent of indicative content in a UK mark scheme.

Studying both together gives you the full picture. The markband tells you what quality of thinking is required. The clarification notes tell you what content is expected at that quality level.

How to use markbands in revision

  1. Write an answer under timed conditions. Don't look at the markband until you're done.
  2. Read the markband top-down. Start at the highest band and ask honestly: does my answer meet this description? If not, move down until you find the one that fits.
  3. Identify the specific gap. Usually it's evaluation (missing or superficial), structure (arguments jumping around), or evidence (too vague or too broad). Name it precisely.
  4. Rewrite targeting that gap only. Don't rewrite the whole answer. Find the section that failed and fix it. This builds specific skills faster than writing a new answer from scratch every time.
  5. Read the clarification notes for that question. Check whether you covered the expected content at the quality your band required. This reveals knowledge gaps as well as skills gaps.

The most common mistake IB students make

Writing evaluation as a separate paragraph tacked on at the end of an essay: "In conclusion, the above factors were significant, however some historians argue that..." That's the hallmark of a 6–7 answer. Examiners call it "evaluation by afterthought."

Top-band answers integrate evaluation throughout. After developing each argument, the student immediately weighs its significance, its limitations, or how it interacts with other arguments, then moves on to the next one. The conclusion synthesises what the evaluation across the essay has already established, rather than introducing evaluation for the first time.