IB DP Subject Mastery: What Examiners Really Look For in IB Command Terms

IB DP Subject Mastery: What Examiners Really Look For in IB Command Terms

If you feel that exam papers sometimes read like a secret language, you’re not alone. Command terms are the translator: they tell you exactly what the examiner wants. Master them, and you move from guessing the grade to engineering it. This article breaks down what examiners are actually looking for when they use command terms, shows how those verbs map to structure and content across subjects, and gives practical steps you can apply in biology, history, maths, languages and beyond.

Why command terms matter more than you think

At first glance, a command term—words like ‘describe’, ‘analyse’, ‘evaluate’—seems tiny. But examiners use those words to set a cognitive task. The same topic framed with ‘describe’ asks for a different kind of response than if it’s framed with ‘evaluate’. Marks are awarded for task fulfilment: answer the task precisely and you satisfy the marker’s expectations. Miss the verb and you can produce a beautiful answer that still scores poorly because it didn’t do what was asked.

Think of command terms as the brief’s rubric in plain language. When markers read your answer they are checking: did the candidate perform the action the verb requires? Did they include the level of detail, the kind of reasoning, and the judgement the verb implies? That’s why the best answers are not just fact-rich; they are verb-accurate.

How examiners interpret command terms

Examiners are trained to look for specific moves in student answers. For simple command terms—’define’, ‘state’, ‘identify’—they expect concise, clear facts. For higher-order terms—’analyse’, ‘discuss’, ‘evaluate’—they expect layered thinking: explanation, evidence, comparison, and often a conclusion or judgement. Your job is to translate the verb into a plan and then show the examiner each step of that plan.

Below are reliable habits examiners like to see, regardless of subject:

• Direct response to the verb—don’t sidestep the command.
• Clear structure signposting that matches the command (e.g., assertion + evidence + reasoning for ‘analyse’).
• Use of subject-specific evidence or calculations where relevant.
• Appropriate depth: concise for ‘outline’, detailed for ‘explain’ or ‘evaluate’.
• Precise language and correct terminology.

Common command terms — a practical reference table

Below is a compact, examiner-focused table you can keep in your head (or stick to your notebook). Use it during papers to turn a command term into an instant plan.

How long should each command term take you in an exam?

Time is part of the command-term equation. A two-mark ‘define’ in a 60-minute paper should take under a minute; a 12-mark ‘evaluate’ deserves closer to 20–25% of your time. Use the marks as a clock: more marks → deeper response. Practise allocating time by mark values in past papers so you internalize pacing.

Subject-specific examples: translating verbs across disciplines

Command terms are the same across subjects, but execution differs with the content. Below are subject-focused ways examiners read your verbs.

Sciences (Biology, Chemistry, Physics)

In sciences, many command terms require cause-effect chains, mechanisms, or stepwise reasoning. For example:

• Explain: Expect to describe the mechanism (e.g., chemical pathway, energy transfer) and link steps to the observed effect. Label diagrams where helpful.
• Analyse: Break a complex system into parts and show how each contributes to the whole—use data or equations where possible.

Examiner tip: show your working. Even if your final calculation is wrong, correct method and intermediate steps often gain marks.

Mathematics and Further Mathematics

Math command terms demand precision in logic and notation.

• Prove: Provide a complete logical argument—definitions, theorems used, steps that follow.
• Show that / Derive: Present a clear derivation or transformation with minimal commentary; the chain of reasoning must be flawless.

Examiner tip: label theorems you use and keep steps numbered. Clean, correct notation signals competence.

Humanities (History, Economics, Geography)

Humanities answers reward contextual evidence and balanced analysis.

• Discuss: Offer multiple perspectives, support each with evidence, then weigh them.
• Evaluate: Use criteria (relevance, reliability, significance) to judge arguments and reach a supported conclusion.

Examiner tip: use primary/secondary evidence where relevant and explicitly link evidence to your claims.

Languages and Literature

Language command terms often focus on interpretation and textual evidence.

• Analyse: Focus on language, structure, and stylistic devices and how they produce meaning.
• Compare: Use clear criteria (tone, theme, technique) and quote selectively to support your points.

Model answer scaffolds: turn verbs into paragraphs

Below are short answer scaffolds you can copy into an exam. Each scaffold is verb-specific and shows what examiners expect to see on the page.

For ‘Describe’ (short, factual)

Scaffold: Begin with a clear topic sentence that directly addresses the prompt. Follow with 2–4 sentences of key features or steps. If appropriate, finish with a one-sentence consequence or example.

Example structure: “The process consists of A, B and C. First, A…, then B…, finally C… This leads to…” Keep language concrete and avoid unnecessary evaluation.

For ‘Explain’ (causal chain)

Scaffold: State the claim → explain the mechanism with cause–effect steps → support with a brief example or data point → link back to the question. Examiners want the ‘why’ and ‘how’.

For ‘Analyse’ (break down and link)

Scaffold: Introduce the component parts → dedicate a paragraph to each part with explanation and evidence → synthesize by explaining how the parts interact to produce the observed outcome.

For ‘Evaluate’ (criteria-based judgement)

Scaffold: State the criteria you will use → weigh strengths and weaknesses with evidence → show limitations or counterarguments → deliver a clear, justified conclusion. Always make the basis of your judgement explicit.

Exam-writing habits that examiners reward

Good habits signal confidence and make it easy for examiners to award marks. These small rituals are disproportionately effective:

• Immediately underline or circle the command term and the number of marks.
• Write a one-line plan beneath the question showing the answer structure (examiners like signposting).
• Use paragraphs that mirror the command term (e.g., separate paragraphs for each perspective in a ‘discuss’).
• When asked to ‘justify’ or ‘evaluate’, state your criteria early so the examiner knows how you will judge.
• Label diagrams, show working, give units, and reference data in the question—markers are looking for evidence you used what’s given.

These habits are easy to practice with timed past-paper questions; over a few cycles, they become automatic and dramatically reduce wasted time.

Study routines to internalize command terms

Command terms become second nature with deliberate practice. Try these routines during revision:

• Make a two-sided flashcard set: side A = command term, side B = a 15–20 word action checklist (e.g., ‘Explain: cause(s), mechanism, sequence, link to result’).
• Practice one verb per study session. Pick five past-paper questions that use ‘analyse’ and practise only the analysis skill—across different topics and subjects.
• Peer-mark with a focus on the verb: swap answers and mark only whether the peer fulfilled the command—this builds examiner vision.
• Use targeted tutoring when you need personalised feedback to correct misconceptions quickly. For example, Sparkl‘s 1-on-1 guidance and tailored study plans can help you convert general advice into the specific moves examiners want.

How targeted help accelerates progress

A tutor who identifies exactly why an answer fails the verb test saves you hours of trial-and-error. Good tutoring focuses on the verbs: practising ‘evaluate’ with structure, modelling exam-level phrasing, and providing AI-driven insights into recurring errors so you don’t repeat them. That focused feedback is the high-leverage change many top-performing students use to close the gap between knowing and demonstrating.

Common pitfalls and how to fix them

Examiners see the same mistakes again and again. Recognising them early lets you fix them in revision.

• Ignoring the verb: Writing what you know instead of doing the task. Fix: circle the command term and write a one-line plan before you start.
• Wrong depth: Too shallow for ‘explain’ or too detailed for ‘outline’. Fix: use mark-based timing and practised answer lengths.
• Missing judgement: For ‘evaluate’ and ‘assess’ you must reach a reasoned conclusion. Fix: adopt a criteria → evidence → judgement routine.
• Poor structure: Rambling paragraphs lose marks. Fix: signal each paragraph’s role and keep topic sentences tight.
• Weak evidence: Assertions without subject-specific support. Fix: always back claims with data, quotation, or logical steps.

A quick pre-submission checklist

• Have you answered the command term precisely?
• Is there a clear structure that matches the verb?
• Have you used subject-specific evidence or calculations where appropriate?
• Does any judgement have criteria stated and evidence weighed?
• Have you left time to proofread and tidy calculations/diagrams?

Turning habits into top-grade answers

Command terms are not trivia—they are a performance contract between you and the examiner. Practising the verbs deliberately, using timed past papers, and getting feedback on how well your answers fulfil the verbs will raise your marks faster than memorising more facts. That means practicing the skill of answering the verb as much as practicing the content itself.

Personalised guidance—targeted feedback on how you apply command terms, a study plan that emphasises weak verbs, and a tutor who can point out exactly where your answer diverges from task fulfilment—accelerates improvement. For many students, that focused support is what transforms inconsistent answers into exam-ready work. Consider integrating structured one-on-one sessions, tailored practice plans, and data-driven feedback into your revision routine to make each study hour count.

Final thoughts

Mastering command terms is one of the highest-return strategies for moving toward top grades across IB DP subjects. Learn the verbs, practise the structures, use marks to manage time, and seek targeted feedback that corrects the specific ways your answers miss the verb’s intent. When examiners open your script, make it obvious you did what they asked.