
Introduction
Many International Baccalaureate students spend countless hours revising content, memorizing theories, solving past papers, and perfecting concepts. Yet, despite knowing the material well, they often lose valuable marks in exams for one simple reason. They misunderstand the command term used in the question.
In the IB, every question is carefully designed with a specific command term that tells you exactly how the examiner expects you to respond. Whether the question asks you to analyse, evaluate, discuss, compare, justify, or describe, each term carries a distinct expectation. Ignoring that expectation can result in incomplete answers, even if your knowledge of the topic is excellent.
Understanding IB command terms is not just about learning definitions. It is about learning how examiners think, how mark schemes are designed, and how to structure answers that meet assessment criteria.
This guide explains some of the most important IB command terms, including Evaluate, Analyse, and Discuss. You will also learn practical strategies, common mistakes, and examples that can help you improve your performance across IB subjects.
Why IB Command Terms Matter
The International Baccalaureate emphasizes critical thinking rather than memorization. Questions are designed to test different cognitive skills, and command terms are the instructions that guide those skills.
Imagine two students answering the same question.
Both know the content equally well.
One explains facts without addressing the command term.
The other structures the answer around exactly what the examiner requested.
The second student almost always earns more marks.
That is because IB examiners assess not only what you know but also how effectively you apply that knowledge according to the command term.
Learning these terms early helps students:
- Understand exactly what the question requires.
- Avoid writing irrelevant information.
- Structure answers more effectively.
- Maximize marks with the same level of knowledge.
- Improve confidence during examinations.
What Are IB Command Terms?
Command terms are instructional words placed at the beginning of exam questions. They tell students what type of thinking and response is expected.
For example, the difference between "describe" and "analyse" is significant.
Describing means explaining what something is.
Analysing means examining how or why something works by breaking it into parts and exploring relationships.
A student who simply describes when asked to analyse is unlikely to receive full marks.
The IB uses standardized command terms across many subjects, making it worthwhile to master them once and apply them throughout the Diploma Programme.
What Does "Analyse" Mean?
Analyse means to break an idea, concept, process, or argument into its components and explain how those parts relate to one another.
The emphasis is not on listing facts.
Instead, students should explain relationships, causes, effects, patterns, and significance.
What Examiners Expect
A strong analytical response usually includes:
- Identification of key components.
- Explanation of relationships.
- Evidence supporting observations.
- Logical reasoning.
- Clear conclusions drawn from the analysis.
Example Question
Analyse the causes of climate change.
A weak response may simply list greenhouse gases, pollution, and deforestation.
A stronger response explains how industrialization increases greenhouse gas emissions, how these emissions trap heat in the atmosphere, and how different human activities contribute to global warming over time.
The key difference is explanation rather than description.
What Does "Evaluate" Mean?
Evaluate requires students to make a judgment based on evidence.
This is one of the highest level command terms because students must consider strengths, weaknesses, advantages, disadvantages, limitations, and supporting evidence before reaching a balanced conclusion.
Simply stating an opinion is not evaluation.
The judgment must be supported with logical reasoning.
What Examiners Look For
An effective evaluation includes:
- Evidence from reliable sources.
- Multiple perspectives.
- Benefits and limitations.
- Critical reasoning.
- A justified final judgment.
Example Question
Evaluate the effectiveness of renewable energy in reducing carbon emissions.
A high quality answer would discuss:
- Environmental benefits.
- Economic costs.
- Infrastructure challenges.
- Long term sustainability.
- Differences between countries.
- A reasoned conclusion about overall effectiveness.
The conclusion should naturally emerge from the evidence presented.
What Does "Discuss" Mean?
Discuss asks students to examine different viewpoints before arriving at a balanced conclusion.
Unlike evaluation, discussion does not necessarily require deciding whether something is good or bad. Instead, students should explore multiple perspectives fairly.
Think of discussion as presenting an informed conversation supported by evidence.
What Makes a Strong Discussion?
A strong discussion typically includes:
- Different viewpoints.
- Supporting evidence.
- Counterarguments.
- Balanced reasoning.
- Logical conclusion.
Example Question
Discuss whether globalization benefits developing countries.
A complete answer may include:
Benefits:
- Increased trade.
- Employment opportunities.
- Technology transfer.
- Foreign investment.
Challenges:
- Income inequality.
- Environmental concerns.
- Cultural homogenization.
- Dependence on multinational corporations.
The conclusion summarizes both perspectives while presenting a thoughtful overall position.
Commonly Used IB Command Terms
Although Analyse, Evaluate, and Discuss receive significant attention, students frequently encounter many other command terms.
Describe
Give a detailed account of something.
Focus on facts rather than opinions.
Explain
Provide reasons or causes.
Answer the question of why or how something happens.
Compare
Identify similarities between two or more ideas.
Contrast
Identify differences between ideas.
Define
Provide the precise meaning of a term.
Keep the answer accurate and concise.
Justify
Support a decision or conclusion using logical evidence.
Outline
Present the main features without extensive detail.
Identify
Recognize and state the correct answer.
Usually no explanation is required unless specifically requested.
The Biggest Mistakes Students Make
Many students lose marks because they treat every question the same way.
Here are the most common errors.
Ignoring the Command Term
Students often focus only on the topic and forget the instruction.
For example, an Evaluate question answered with pure description misses the assessment objective.
Writing Everything They Know
Some students believe that longer answers automatically earn higher marks.
IB examiners reward relevance rather than length.
Every paragraph should directly address the command term.
Giving Opinions Without Evidence
Personal opinions carry little value unless supported with evidence.
Strong arguments require examples, data, theories, or case studies.
Forgetting the Conclusion
For Evaluate and Discuss questions, a thoughtful conclusion is essential.
Without it, the answer often feels incomplete.
A Simple Strategy for Every Command Term
Before writing any answer, pause for a few seconds and identify the command term.
Then ask yourself:
"What does the examiner actually want me to do?"
You can use this quick checklist.
| Command Term | Main Goal |
|---|---|
| Describe | Explain what something is |
| Explain | Show why or how |
| Analyse | Break into parts and explain relationships |
| Discuss | Present multiple viewpoints |
| Evaluate | Judge using evidence |
| Compare | Show similarities |
| Contrast | Show differences |
| Justify | Defend your answer with evidence |
Keeping this table in mind during revision can dramatically improve exam performance.
How to Practice Command Terms
Understanding definitions is only the first step.
Real improvement comes through practice.
One effective method is to collect past paper questions and highlight the command term before attempting each answer.
After writing your response, compare it with the mark scheme and ask yourself whether your answer actually fulfilled the instruction.
Another useful strategy is to rewrite the same question using different command terms.
For example:
Describe the causes of inflation.
Explain the causes of inflation.
Analyse the causes of inflation.
Evaluate government responses to inflation.
Although the topic remains similar, the expected answers change considerably.
This exercise trains your brain to recognize exactly what each command term demands.
Tips to Impress IB Examiners
Successful IB students often follow a few consistent habits.
Read every question carefully before writing.
Underline the command term.
Plan your answer before starting.
Support arguments with evidence whenever possible.
Avoid memorized responses that ignore the question.
Maintain a logical structure with clear paragraphs.
Finish with a conclusion whenever the command term requires one.
These habits may seem simple, but together they can make a significant difference in examination performance.
Final Thoughts
Success in the International Baccalaureate depends on more than mastering subject content. It also requires understanding how to communicate that knowledge in the way examiners expect.
Command terms such as Analyse, Evaluate, and Discuss are not just vocabulary words. They are instructions that shape the entire structure of your answer. Learning what each one truly means allows you to respond with greater precision, stronger reasoning, and better organization.
The next time you open an IB exam paper, resist the temptation to jump straight into writing. Spend a few moments identifying the command term, planning your response, and ensuring that every paragraph directly answers the instruction.
That small habit can be the difference between an average response and one that achieves the highest marks.
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