Why a Single Word Can Change Your Whole Answer

Two pupils can sit the same GCSE paper, know the content equally well, and still finish six marks apart. The difference is often not knowledge but the command word — the instruction at the start of the question that tells the examiner what kind of thinking is being rewarded. "Describe" and "explain" may look interchangeable in everyday speech, but in an exam they are asking for entirely different things.

Command words are the shared vocabulary of written papers. They appear in mark schemes, in examiner reports, and in the assessment objectives that sit behind every question. Teaching pupils to read them carefully is one of the quickest ways to lift performance, because it turns a vague task into a precise one.

The Workhorses: Describe, Explain and Compare

Most papers rely on a small set of reliable workhorses. Learning what each one demands is the foundation.

• Describe — say what something is like. Give features, steps, characteristics or observations. Detail earns marks; reasons are not required and can waste time.
• Explain — give reasons. This is a cause-and-effect word. Pupils should link points with "because", "so", "which means that" and "this leads to". A fact alone is not an explanation.
• Compare — write about similarities and differences, ideally linked point by point. "Both X and Y share…, whereas…" scores better than two separate lists that never meet.
• Identify or state — a short, precise answer. One word or phrase is enough; no development is needed.

A useful rule of thumb: the more demanding the command word, the more structure the answer needs. A "describe" answer is a list of accurate facts. An "explain" answer is a chain of reasoning.

The Higher-Tariff Words: Analyse, Evaluate and Justify

Once the tariff climbs above six marks, the command words change shape. These questions reward thinking, not recall.

• Analyse — break something into its parts and show how they work together. Examiners want relationships, causes, consequences and significance, not a summary.
• Evaluate — weigh up evidence or arguments and reach a supported judgement. A strong answer considers both sides, uses specific evidence, and finishes with a clear conclusion that follows from the argument.
• Justify — defend a position. State the view, give reasons and evidence, and briefly acknowledge the strongest counter-argument before dismissing or qualifying it.
• Discuss — present a balanced range of views and arrive at a reasoned position. Never leave the judgement implied.

The common thread is judgement. Pupils who simply list points on an "evaluate" question are answering a different, easier question than the one set.

Reading the Mark Scheme Like an Examiner

Mark schemes reward what the command word asks for. Point-marked questions award one mark per valid point, so "explain two reasons" needs two developed explanations, not four undeveloped ones. Levels-based questions — common at A-level and on extended GCSE responses — reward the quality of reasoning, the use of evidence and the presence of a judgement.

Pupils should also read the other clues on the page. The number of marks suggests how much to write. The number of lines or the size of the box is a deliberate hint. If a question says "use the source" or "refer to the data", the examiner is looking for specific evidence, and marks will be lost without it.

Practical Habits That Turn Knowledge into Marks

Command words are a skill, and like any skill they improve with deliberate practice. These habits are worth drilling until they become automatic.

• Underline the command word the moment the paper is opened, and circle the topic and any numbers ("two reasons", "three features").
• Annotate with a single letter — D, E or J — in the margin so the task stays visible while writing.
• Plan for two minutes on high-tariff questions. Jot the strongest points, then number them in the order you will write them.
• Use sentence stems: "This is because…", "This means that…", "However…", "On balance…", "The strongest evidence for this is…".
• Check against the verb at the end. Have you described, explained, evaluated? Write the command word at the top of the answer space as a reminder.
• Practise timing at roughly one minute per mark, adjusted for reading and checking.

How Tutors and Parents Can Help at Home

Support does not require subject expertise — it requires asking the right question. When quizzing a pupil on a topic, finish with "now explain why that happens" or "how would you evaluate that view?". The content stays the same; the demand changes.

Showing a weak answer beside a strong one is powerful. Take a past-paper question, write a level 1 response and a level 4 response, and ask the pupil to spot the differences. They will usually identify the judgement, the evidence and the linking language without prompting.

Finally, reassure pupils who feel they "knew it but lost marks". Command words are not a trick; they are a code, and once cracked they make exams feel far less mysterious. A pupil who reads the verb before writing a single word has already taken a measurable step towards a better grade.