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  3. Command terms and answer technique

Command terms and answer technique

Recognise what each command term and assessment objective asks for, earn every mark in structured questions, use examples, case studies, diagrams and time well, and see model answers at every level on one topic.

  • IB Geography
  • Exam skills
  • SL and HL

28 min readLast reviewed 18 Oct 2026

Every geography examination question tells you two things: what to write about (the topic, the place, the scale) and what to do with it. The second part comes from the command term, the word or phrase at the start of the question. “Describe” and “explain” can be asked about the same graph, but they want different answers, and an answer that does the wrong task earns few marks, however accurate its facts.

Command terms are linked to four assessment objectives, and the marks for every answer, from a 1-mark reading of a map to a 16-mark discussion, are awarded against them. Learning what each term asks for, how marks are given in a structured question, and how to use examples, time and diagrams is the quickest way to turn knowledge into marks.

How geography answers are judged

Examiners judge answers against four assessment objectives (AOs). Each describes a kind of thinking, and each command term belongs to one of them.

Definition

Assessment objective: one of the four skill areas against which geography answers are judged: AO1 knowledge and understanding, AO2 application and analysis, AO3 synthesis and evaluation, and AO4 selection and use of skills.

Objective

What it means in practice

Where it carries most weight

AO1 Knowledge and understanding

Knowing the content: terms, processes, patterns, named places and their facts

Short parts of structured questions; the evidence base of every essay

AO2 Application and analysis

Using that knowledge on unfamiliar material: reading a map or graph, explaining why a pattern exists, applying a concept to a place

“Explain” and “Suggest” parts; the analysis in every essay

AO3 Synthesis and evaluation

Weighing evidence, linking ideas from different parts of the course (synthesis), considering other perspectives and reaching a judgment

10-, 12- and 16-mark extended answers; the 6-mark infographic part

AO4 Skills

Selecting and using skills: maps, graphs, diagrams, calculations, and well-structured writing with correct terminology

Stimulus readings, diagrams in answers, the structure of essays

The objectives rise in demand from AO1 to AO3. A question that starts with “State” wants a single fact; one that starts with “Evaluate” wants knowledge (AO1), used to explain (AO2), then weighed to reach a judgment (AO3), all written in a clear structure (AO4). AO4 terms such as “draw” and “annotate” sit outside this ladder, because they name a skill rather than a depth of thinking.

Staircase of command terms. AO1 (classify, define, describe, determine, estimate, identify, outline, state), AO2 (analyse, distinguish, explain, suggest), AO3 (compare, contrast, discuss, evaluate, examine, justify, to what extent); AO4 skills box: annotate, construct, draw, label.Staircase of command terms. AO1 (classify, define, describe, determine, estimate, identify, outline, state), AO2 (analyse, distinguish, explain, suggest), AO3 (compare, contrast, discuss, evaluate, examine, justify, to what extent); AO4 skills box: annotate, construct, draw, label.
Each step up the staircase includes the ones below it: an evaluation is built from accurate knowledge and analysis. AO4 terms can appear at any level, wherever a map, graph or diagram is part of the answer.

Definition

Command term: a word or phrase at the start of an examination question, such as describe, explain or evaluate, that states what kind of answer is wanted and how much depth it needs.

Extended answers are not marked point by point. They are marked with a markband: a range of marks with a description of a typical answer in that range, judged on the answer as a whole. The descriptors for each band have one strand per assessment objective, so an answer full of accurate facts (AO1) with no judgment (AO3) cannot reach the top bands. Examiners apply the markbands using a markscheme for each paper, which lists creditable points for structured questions and notes on what each band looks like for each essay.

Definition

Markband: a range of marks, such as 7–8 out of 10, with a description of the typical qualities of an answer in that range, used to mark extended answers as a whole rather than point by point.

Marking against a markband is a “best fit” judgment. An answer is placed in the band whose description it matches most closely, then at the top or bottom of that band depending on how fully it matches. One brilliant paragraph does not lift a weak essay into the top band, and one weak paragraph does not sink a strong one.

The command terms and what each asks for

Geography uses about two dozen command terms. Their meanings are fixed, and each one implies a particular shape of answer. The tables group them by assessment objective, from the least to the most demanding, with the kind of answer each needs and the marks it usually carries.

AO1 terms: show what you know

Term

What it asks for

What a good answer looks like

Usual marks

State

A specific name, value or other brief answer, without explanation

One word, figure or phrase, with its unit: “2,982 m”, “north-east”

[1]

Identify

One answer chosen from a number of possibilities

The name of the country, landform or category shown, exactly as on the stimulus

[1]

Estimate

An approximate value

A value read from a graph or map to the precision its scale allows, with units

[1]

Determine

The only possible answer, usually from data

The value, with the working where it is a calculation

[1]–[2]

Define

The precise meaning of a word, phrase or concept

A one-sentence definition that would fit a glossary, with the key qualifiers (“the movement of…”, “per 1,000 per year”)

[1]–[2]

Classify

An arrangement into classes or categories

Each item placed in its category, with the categories named

[1]–[2]

Outline

A brief account or summary

One point and one development, in linked sentences

[2]

Describe

A detailed account of what is there

The general pattern or trend, figures with units, and an exception; no reasons unless asked

[2]

AO1 terms ask what, where, when and how much, not why. The commonest error with them is to explain, which wastes time and earns nothing. “Describe the trend” wants the direction, the rate and the figures; the reasons belong to a later part of the question, which will usually ask for them.

Common mistake

Answering “Describe” with “it goes up”. A description earns full marks only when it is quantified from the stimulus: the start and end values with units and dates, the rate or size of the change, and any exception (“rose from 1.2 million in 2000 to 3.4 million in 2020, but fell slightly in 2010”).

AO2 terms: use and analyse what you know

Term

What it asks for

What a good answer looks like

Usual marks

Explain

A detailed account that includes reasons or causes

Each reason stated, then developed through the chain of cause and effect (“because… which… so…”), with an example where it helps

[2+2], [3+3], [3]

Suggest

A possible answer: a solution, hypothesis or reason, often for an unfamiliar situation

A plausible reason linked to the context in the stimulus, then developed; any reasonable answer is credited

[2], [2+2]

Distinguish

The differences between two or more concepts made clear

Both terms defined, and the difference stated explicitly in one sentence (“a hazard is the threat; a disaster is the harm it causes”)

[2]–[4]

Analyse

Breaking an issue down to bring out its essential parts or structure

The issue split into parts (types, scales, stakeholders, mechanisms), each explained with evidence and linked to the others

[12] in Paper 3 part (a)

“Explain” is the most frequent term in structured questions. Its marks are almost always split between reasons and their development, so a list of reasons earns little. “Suggest” sounds easier but is marked in the same way, with one extra rule: the suggestion must fit the place or situation in the question. A reason that would be true anywhere often earns only part of the marks.

“Describe” asks what a pattern, trend or feature is, with evidence. “Explain” asks why it is like that, with reasons. Many questions pair them in consecutive parts, so the evidence goes in the first and the reasons in the second.

AO3 terms: weigh the evidence and judge

Term

What it asks for

What a good answer looks like

Usual marks

Examine

A study of an argument or concept that brings out its assumptions and interrelationships

Factors or arguments explained, then their links shown: how they interact, vary by place, scale and time, and what the question takes for granted; a judgment at the end

[10]

Evaluate

An appraisal that weighs up strengths and limitations

Strengths and limitations of a strategy, model or policy, for whom, at what scale and over what time, then a verdict (“effective in the short term for…, less so for… because…”)

[6], [10]

Discuss

A balanced review of a range of arguments, factors or hypotheses, with a clear, supported conclusion

Several arguments on more than one side, each evidenced, and an opinion that follows from them

[10], [16]

To what extent

Consideration of the merits or otherwise of an argument, with a clear, supported conclusion

Evidence for and against the claim, and a conclusion that states the extent (“largely”, “only for…”) and why

[6], [10], [16]

Justify

Valid reasons or evidence to support an answer or conclusion

A choice or claim backed by specific evidence, often after weighing the alternatives

[2]–[6]

Compare

An account of the similarities between two or more items, referring to all of them throughout

Point-by-point similarities, with linking words such as “both” and “similarly”

[4]–[10]

Contrast

An account of the differences, referring to all of them throughout

Point-by-point differences, with “whereas” or “in contrast”

[4]–[10]

Compare and contrast

Similarities and differences, referring to all of them throughout

Both, point by point; never two separate descriptions

[4]–[10]

The AO3 terms overlap, but each has its own emphasis. “Evaluate” puts strengths against limitations; “examine” looks for hidden links and assumptions; “discuss” wants a range of views; “to what extent” wants a measured verdict on a claim. All of them need evaluation and a justified conclusion, and all are marked with markbands.

Definition

Evaluation: the skill of weighing strengths and limitations, costs and benefits, or competing arguments and evidence, and reaching a reasoned judgment about their value or importance.

Common mistake

Writing two separate paragraphs, one on each place, for “compare” or “contrast”. The command terms require reference to both items “throughout”, so each paragraph should treat one point for both places: “In 2016 most timber-framed houses at Kaikōura stayed standing, whereas in 2023 about 70% of homes in Antakya collapsed.”

AO4 terms: show the skill

Term

What it asks for

What a good answer looks like

Label

Labels added to a diagram

One or two words on or beside each feature, joined by a ruled line: “levee”, “point bar”

Annotate

Brief notes added to a diagram or graph

Short explanations on the diagram: “deposition on the inner bend, where velocity is lowest”

Draw

A labelled, accurate diagram or graph, in pencil, with a ruler for straight lines

A clear diagram to scale where possible, with title, labels and axes; points plotted correctly

Construct

Information displayed in diagrammatic or logical form

The right type of graph, flow chart or table for the data, with title, key and labelled axes

Tip

A memory aid for the four AO4 terms: label names, annotate explains, draw represents accurately, construct builds from data. If a diagram carries only names, it is labelled; if each label says what is happening and why, it is annotated.

Exam tip

Underline the command term and every element of the question before you write: the topic, the place or scale (“in one named city”, “at a local scale”), and every part (“costs and benefits”, “physical and human”). Most marks lost in geography answers are lost by doing a different task from the one set, or only half of it.

One topic, rising demand: Dhaka at every level

The clearest way to see what each command term wants is to ask several questions about the same topic and compare the answers. Every question in this set is about the growth of Dhaka, a megacity in Bangladesh, and uses the fact file as its stimulus. The answers get longer and more argued as the command term moves from AO1 to AO3, while the evidence stays much the same.

Fact file: Dhaka, Bangladesh

Population of the city proper (2022 census)

10.3 million

Population of the urban agglomeration (2025 estimate)

36.6 million, second largest in the world

Density of the city proper

about 33,600 people per km²

Share of the population in informal settlements (2016)

about 30%

Share of water from groundwater (2021)

about 87%; water table falling 2–3 m a year

Sewage treated

Dasherkandi plant (2023): 500 million litres a day, of about 2,000 million produced

Average car speed in traffic

below 7 km per hour

Garment industry (2025)

about 4.2 million workers, 54% of them women

Metro Rail

MRT Line 6 opened 28 December 2022

Sources: UN DESA, World Urbanization Prospects 2025; Bangladesh Bureau of Statistics, census 2022; other figures via Wikipedia, “Dhaka” and “Textile industry in Bangladesh”, 2026.

AO1: state, identify, outline, describe

Worked example

(a)(i) Identify the main source of Dhaka’s water supply. [1]

(a)(ii) State the population of the Dhaka urban agglomeration in 2025. [1]

Show the answers

(a)(i) Groundwater ✓ (about 87% of supply).

(a)(ii) 36.6 million ✓.

One word or one figure is enough. The unit (“million”) is part of the answer: “36.6” alone may not be credited.

An “Outline” question asks for a brief account, which in a 2-mark part means one point and one development. The development can come from general knowledge as well as from the stimulus.

Worked example

(b) Outline one reason for the rapid growth of Dhaka. [2]

Show a model answer

Rural–urban migration ✓: people move from villages affected by landlessness, low farm wages and river-bank erosion to take jobs in the city’s garment factories, which employ about 4.2 million people ✓.

The first mark is for the reason; the second for developing it with a cause and a fact. “Migration” alone earns one mark.

“Describe” needs evidence from the stimulus, quantified. Two short, separate points are the safest way to earn two marks.

Worked example

(c) Describe the pressure on Dhaka’s water and sanitation shown in the fact file. [2]

Show a model answer
  • About 87% of the water comes from groundwater, and the water table is falling by 2–3 m a year, so supply is being used faster than it is replaced ✓.

  • Treatment capacity for sewage is about 500 million litres a day, about a quarter of the roughly 2,000 million litres produced ✓.

Each point uses a figure with its unit. An answer that said “water is running out and sewage is a problem” would earn no more than one mark, because it is not quantified.

AO2: explain and suggest

“Explain two reasons… [3+3]” is marked as two separate 3-mark answers. Each gets one mark for the reason and up to two for developing it: the next step in the chain, a consequence, or a located example.

Worked example

(d) Explain two reasons why rural–urban migration to Dhaka is high. [3+3]

Show a model answer

Reason 1: the pull of factory jobs ✓. Bangladesh’s garment industry is concentrated around Dhaka, Gazipur and Narayanganj and employs about 4.2 million people ✓, so a young migrant, especially a woman, can earn a regular cash wage far above typical rural earnings, and the money sent home encourages others to follow ✓.

Reason 2: environmental push factors in the countryside ✓. In the low-lying delta, river-bank erosion, floods and coastal cyclones destroy farmland and homes ✓, and households that lose their land have little choice but to move to the city, where Dhaka is the main destination because it holds most of the country’s urban jobs ✓.

Both reasons are different (a pull and a push), and each has two developments. A third reason (for example, better schools) would earn nothing extra: the time is better spent developing the two that were asked for.

Common mistake

Giving two reasons that are really one. “Jobs in factories” and “higher wages in the city” are the same pull factor seen twice, so an examiner may credit only one. Choose reasons from different categories: push and pull, economic and environmental, physical and human.

“Suggest” asks for a plausible answer to something the stimulus does not explain directly. It rewards reasoning applied to the place in the question.

Worked example

(e) Suggest two reasons why sewage treatment in Dhaka covers only about a quarter of the sewage produced. [2+2]

Show a model answer
  • Population growth has outpaced investment ✓: the agglomeration has grown to 36.6 million, and each new treatment plant, such as Dasherkandi (2023), takes years to plan, fund and build ✓.

  • About 30% of residents live in informal settlements ✓, where there is no sewer network to connect to, and the government is reluctant to invest in land it does not recognise as legal housing ✓.

Other creditable suggestions: the high cost of laying sewers under a dense, flood-prone city; limited municipal tax revenue; priority given to roads and the metro. Any reasonable suggestion that fits Dhaka is credited, but a suggestion with no link to the city (“governments are corrupt”) would earn at most one mark.

AO3: examine, evaluate, to what extent

The three AO3 questions on Dhaka could all be answered with the same facts, but each needs a different argument. The table sets out what changes; the model openings and conclusions show the difference on the page.

Question [10]

Central task

What the conclusion must say

Examine the factors that have caused Dhaka’s infrastructure to fall behind its population growth.

Explain the factors (speed of migration, delta site, informality, finance, governance), then show how they interact and which matter most

Which factors matter most and how they reinforce each other

Evaluate the Metro Rail as a response to the challenges of Dhaka’s growth.

Weigh strengths (speed, reliability, emissions) against limitations (coverage, fares, cost), for different groups and over time

A verdict on how effective it is, for whom and on what condition

To what extent do women gain from the growth of Dhaka?

Evidence for (wages, independence, falling fertility) and against (low pay, informal housing, unsafe work, harassment), by group

The extent of agreement, stated and justified (“largely, for factory workers, but…”)

Worked example

Examine the factors that have caused Dhaka’s infrastructure to fall behind its population growth. [10]

Show model extracts

Opening: “Infrastructure is the network of transport, water, drainage and sewerage that a city needs to function. In Dhaka, an agglomeration of about 36.6 million people in 2025, it has fallen far behind demand: sewage treatment covers about a quarter of the need and average car speeds have fallen below 7 km per hour. Several factors explain this, but they matter mainly because they reinforce one another.”

Key paragraph (interrelationships): “The speed of growth and the city’s site interact. Because most migrants are young adults, migration adds natural increase on top of itself, so demand grows faster each decade than planners expected. At the same time, Dhaka is built on low, flat delta land that floods every monsoon, so every kilometre of sewer and road costs more to build and drain. The roughly 30% of residents in informal settlements are both a result of the shortfall, since formal housing is unaffordable, and a cause of it, because utilities do not invest where tenure is not recognised.”

Conclusion: “Rapid migration is the trigger, but the shortfall persists because the delta site raises costs while informality and limited municipal finance reduce investment. The most important factor is therefore governance: the decision about where to invest, which so far has favoured the formal city.”

The answer reaches the top band by uncovering links (growth → informality → no investment → more informality) and an assumption (that more money alone would close the gap), not by listing more factors.

An evaluation keeps returning to the same question, “how well does it work, and for whom?”, rather than describing the response.

Worked example

Evaluate the Metro Rail as a response to the challenges of Dhaka’s growth. [10]

Show model extracts

Opening: “MRT Line 6, which began commercial service from Uttara to Agargaon on 28 December 2022, aims to cut journey times in a city where cars average below 7 km per hour. Its effectiveness depends on whom it serves and on what happens to the rest of the network.”

Key paragraph (limitation, with scale): “The line offers fast, reliable journeys to people who live and work near its stations, but it serves only a small share of a city of more than 30 million, most of whose journeys are by bus, rickshaw or on foot. Fares that suit office workers can be too high for garment workers or rickshaw pullers, so the benefits go mainly to middle-income residents, which raises a question of equity.”

Conclusion: “The Metro Rail is effective for the corridor it serves and is a necessary first step, but on its own it cannot solve congestion at the scale of the agglomeration. Its long-term value depends on the planned further lines, on fares the poor can afford, and on linking it to buses and to housing.”

A description of the line and its stations, however accurate, would stay at about 5–6. The evaluation lifts it: strengths and limitations, the scale of the problem, the perspectives of different groups, and a verdict with conditions.

“To what extent” sets up a claim to be tested. The conclusion must state how far it holds, not simply that “there are arguments on both sides”.

Worked example

To what extent do women gain from the growth of Dhaka? [10]

Show an answer plan and conclusion
  • For: about 54% of the 4.2 million garment workers are women; cash wages above rural earnings; the industry is linked to later marriage, more schooling for girls and smaller families (Bangladesh’s fertility fell to 2.1 in 2024).

  • Against: low pay (a minimum garment wage of Tk 12,500 a month from November 2023), long hours and unsafe workplaces; many women live in informal settlements such as Korail, with shared toilets and the risk of eviction; women in informal work (domestic workers, vendors) have none of the factory gains.

  • Perspectives: a young migrant from a village affected by river erosion; a factory owner; a woman in an informal settlement; the national government, which values the export earnings.

  • Conclusion: women gain to a large extent compared with rural alternatives, especially in income and independence, but the gains are uneven: they are greatest for factory workers in formal jobs and smallest for women in informal work and housing, and they depend on wages and safety rules that are still contested.

The conclusion states the extent (“to a large extent”), the condition (“compared with rural alternatives”) and the groups for whom it holds less. That is what the command term asks for.

Exam tip

In every AO3 answer, give your judgment early (in the introduction, as a line of argument) and return to it at the end of each paragraph with a short evaluative sentence. An argument that only appears in the last paragraph reads as a summary, and examiners reward evaluation that is “ongoing”.

Tip

A quick test for any AO3 paragraph: cover the evidence and read only its first and last sentences. If together they make a claim and judge it, the paragraph is evaluating. If they only name a topic (“Another factor is transport”), it is describing.

Command terms are a guide to the shape of an answer, not a strict formula. An “Examine” essay still weighs strengths and weaknesses where they matter, and a “Discuss” essay still uncovers assumptions. What matters is that the main task named by the term is done fully.

How structured questions are marked

A structured question is marked point by point from a markscheme that lists the creditable answers. Each valid point earns one mark, up to the maximum for the part, and the marks beyond the first in a reason are for its development. Knowing this rule changes how answers should be written: briefly, in separate points, and with every point carried one step further.

Definition

Structured question: an examination question divided into short parts of rising difficulty, usually based on a stimulus, in which each valid point or development earns one mark.

One mark per point, and marks for development

A developed point is a point that goes beyond a bare statement. It explains how or why the point works, gives its consequence, or supports it with a named, located example. In a 2-mark “Outline”, one point plus one development earns both marks. In a 3-mark “Explain”, the reason earns one mark and two developments earn the other two.

Flow of three boxes: the reason (1 mark), because how or why it works (1 mark), so its consequence or a named, located example with a figure (1 mark).Flow of three boxes: the reason (1 mark), because how or why it works (1 mark), so its consequence or a named, located example with a figure (1 mark).
Each box earns one mark. Linking words (“because”, “which means”, “so”, “for example, in…”) are the signal that a point is being developed rather than repeated.

Answer to “Explain one reason why urban areas flood more quickly than rural areas. [3]”

Marks

“Concrete.”

0: a word, not a reason

“There are more impermeable surfaces in cities.”

1: the reason

“Impermeable surfaces such as roads and roofs stop infiltration, so more rain becomes overland flow.”

2: reason + one development

“Impermeable surfaces such as roads and roofs stop infiltration, so more rain becomes overland flow, and storm drains carry it straight to the river, shortening the lag time and raising peak discharge.”

3: reason + two developments

The same idea runs through every structured part. The difference between one mark and three is rarely more knowledge. It is usually the habit of finishing the chain from cause to effect.

“Two reasons, each developed”

Questions such as “Explain two ways…” or “Suggest two reasons…” are marked as separate halves, [2+2] or [3+3]. The examiner credits the first two reasons only. Writing a third reason gains nothing, and a third reason squeezed in while the first two are left undeveloped loses marks that were within reach.

Common mistake

Writing a list of four or five reasons for a “two reasons” question, in the hope that two will be right. Only the first two are marked, and a list earns one mark for each reason at most, with nothing for development. Choose the two you can develop best, label them (“Reason 1”, “Reason 2”) and develop each fully.

Using the stimulus with figures and units

Most structured questions are built on a stimulus: a map, graph, table, photograph or diagram, printed in a separate resource booklet. When a question says “shown in the graph” or “in the photograph”, the answer must use it. Markschemes for “Describe” parts often note that answers should quantify for full marks, and “Suggest” parts may be capped if the answer ignores the context the stimulus sets, such as an arid area or a coastal city.

Definition

Stimulus: the map, graph, table, photograph, diagram or text on which an examination question is based, which answers are expected to use and quote.

  • Quote figures with units and dates: “fell from 68,000 km² in 1960 to about 10% of that by 2007”, not “fell a lot”.

  • Give the general pattern first, then the exception: “most provinces recorded fewer than 1,000 deaths, but Hatay recorded 24,147”.

  • Use the stimulus’s own words for categories, places and keys, so the examiner can match them.

  • Read the scale and units carefully: thousands or millions, per cent or percentage points, mm or cm, per year or in total.

Exam tip

When you read a value from a graph, read it as precisely as the scale allows and say “about” where it is an estimate. Markschemes usually accept a small range around the true value (for example 5–7 hours for a lag time), but a value outside that range, or one with no unit, earns nothing.

Worked example

A table shows that a coastal town’s population was 12,400 in 2005 and 18,600 in 2025 (hypothetical data). (a) Describe the change in population. [2]

Show the answers

Weak answer: “The population went up a lot.” (0 marks: no figures.)

Model answer: The population rose from 12,400 in 2005 to 18,600 in 2025 ✓, an increase of 6,200, or 50% in twenty years ✓.

The percentage change is (18,600 − 12,400) ÷ 12,400 × 100 = 50%. Manipulating the data (a difference, a percentage, a rate per year of 310 people) is the second mark; repeating the two values is only one.

Using examples and case studies

Geography answers are judged on the quality of their evidence. A general point (“cities in poorer countries have more slums”) shows understanding, but a point supported by a specific place, figure and date shows knowledge, and it is what lifts an answer from the middle markbands to the top. Examiners distinguish two kinds of evidence: the short detailed example and the longer case study.

Definition

Detailed example: a sentence or two of specific evidence that supports a point in an answer, giving a named location and usually a date, an amount or another precise fact.

An example enriches one point. It names the place and adds at least one precise fact: a location, an amount or a date. “Bangladesh” on its own is not an example; “Bangladesh’s Cyclone Preparedness Programme, whose volunteers helped to evacuate about 2.2 million people before Cyclone Amphan in May 2020” is. An essay may use many examples, each supporting a different point.

Definition

Case study: a located, detailed and recent study of one place, event or issue, with data on causes, impacts and responses, used as evidence for discussion in an answer.

A case study is a fuller body of evidence about one place or event, used to argue rather than to narrate. It should be recent, ideally within your lifetime, so that data are available and it reflects current conditions; a historic event such as the eruption that buried Pompeii is not a suitable case study. Where a question asks for a case study, it says so (“with reference to one named city”), and the case study must match the question exactly.

Level of evidence

Example (megacity growth)

What it earns

Unlocated

“Megacities in poor countries have many slums.”

Shows understanding only; no credit for knowledge of place

Named

“Dhaka has many slums.”

A little more: the place is named but nothing is known about it

Located and specific (a detailed example)

“About 30% of Dhaka’s population lived in informal settlements in 2016, such as Korail beside the towers of Gulshan.”

Credit for knowledge: place, figure, date, a named district

Used as evidence (part of a case study)

“Because about 30% of residents lived in informal settlements in 2016, where utilities do not invest, the shortfall in sewerage feeds itself…”

Credit for analysis: the evidence supports an argument

Common mistake

Retelling a case study as a story (“First the rains came, then the river rose, then…”). The examiner is looking for evidence used to answer the question, so select the facts that support each point and leave out the rest. A case study that is not linked to the question earns very little, however detailed.

Tip

Keep a one-page fact file for each case study: location (with a sketch map), dates, five or six key figures, the main stakeholders and their views, one strength and one weakness of the response, and the key concepts it shows. A fact file is quicker to revise than a page of notes and supplies evidence for many different questions.

Add to your notes: a revision grid with one row per case study and detailed example you know, and columns for the place, the date, three figures, the stakeholders, the questions it could answer, and the key concept it shows best (place, process, power or possibility). Fill a gap whenever a row has fewer than three figures.

Time per mark

Every geography paper is tightly timed, and the papers give different amounts of time per mark, so the same number of marks deserves different amounts of writing in different papers. A useful rule is to divide the minutes available by the marks: the result is the time a mark is worth, including reading and planning.

Bar chart of time available per mark: Paper 1 2.25 minutes, Paper 3 2.1 minutes, Paper 2 1.5 minutes.Bar chart of time available per mark: Paper 1 2.25 minutes, Paper 3 2.1 minutes, Paper 2 1.5 minutes.
Paper 2 is the most pressed for time, at 1.5 minutes per mark, so its structured parts need short, precise points. Paper 1 and Paper 3 allow a little over two minutes per mark, most of it for the extended answers.
  • A 1-mark “State” in Paper 2 is worth about 1–2 minutes: read the stimulus, write the value, move on.

  • A [3+3] “Explain” in Paper 1 is worth about 11–13 minutes, including a few seconds to choose the two reasons.

  • A 10-mark essay in Paper 1 is worth about 22 minutes, of which 3–4 minutes should go on a plan.

  • Part (b) of Paper 3, worth 16 marks, is worth over half an hour; part (a), worth 12, about 25 minutes.

Exam tip

Never leave an extended answer unfinished because a 2-mark part took ten minutes. If a short part is not working, write your best attempt, leave a space and come back at the end. A rushed or missing conclusion costs more marks in an essay than an imperfect answer to a 2-mark part.

Diagrams and sketch maps in answers

A good diagram can replace a paragraph, and in extended answers the top markband credits maps, graphs or diagrams that are annotated following conventions and whose relevance is explained. A diagram earns credit only when it is accurate, labelled or annotated, and referred to in the text (“as the annotated hydrograph shows…”). A decorative sketch with no labels earns nothing.

Labelled and annotated diagrams

Labels name features; annotations explain them. In an answer, annotations are almost always more useful, because they turn a drawing into an explanation. A sketch of a groyne field is labelled with “groyne”, “beach” and “longshore drift”; annotated, it adds “sediment trapped on the updrift side” and “beach starved downdrift: erosion increases”.

Diagram

Where it helps

Annotations that earn credit

Storm hydrograph (urban and rural)

Flooding, urbanisation

Shorter lag time, higher peak, steeper rising limb, with the reason for each

Cross-section of a landform

Coasts, rivers, glaciers

Process arrows (erosion, deposition, drift) and the order of formation

Sketch map of a case study

Any located example

Key places, the hazard or flow, and two or three notes on causes or impacts

Flow diagram or cycle

Causes, feedback loops, cycles of poverty

Each link explained (“which reduces…”)

Sketch graph of a model (Butler, the DTM)

Tourism, population

Stages labelled with features and a real place at each

Sketch maps

A sketch map is a simple map drawn from memory to show the location and key features of a place. It is not a work of art: what matters is that it is clear, correct and follows the conventions every map should have.

Sketch map of hypothetical Port Ash: river flowing east to the sea, hatched area flooded in 2020, town on the floodplain, main road to Hill Farm, annotations, north arrow, 1 km scale bar and key.Sketch map of hypothetical Port Ash: river flowing east to the sea, hatched area flooded in 2020, town on the floodplain, main road to Hill Farm, annotations, north arrow, 1 km scale bar and key.
Every sketch map needs the same six things: a title, a north arrow, a scale bar or “not to scale”, a key, labels for the places named in the answer, and annotations that link the map to the argument.
  1. Title saying what and where.

  2. Frame and a simple outline: coast, river, border, main roads.

  3. North arrow and scale (or “not to scale”).

  4. Key for every symbol or shading.

  5. Labels for the places named in your answer, and nothing more.

  6. Annotations (short notes with arrows) that explain why the map matters to the question.

Common mistake

Drawing a large, careful map that takes ten minutes and is never mentioned in the answer. A sketch map should take two or three minutes, show only what the argument needs, and be referred to in the text. If it does not support a point, leave it out and spend the time on evidence.

Worked example

Annotate the sketch map of the hypothetical town of Port Ash to explain why its flood risk has increased. [3]

Show model annotations
  • Arrow to the new housing: “housing built on the floodplain since 2015 increases the number of people and buildings exposed” ✓.

  • Arrow to the main road: “the only route out crosses the flood zone, so evacuation is cut off when the river floods” ✓.

  • Arrow to the river mouth: “high tides at the coast can stop river water draining to the sea, so floods last longer” ✓.

Each annotation explains, rather than names, a feature. “River” or “houses” would be labels and would earn nothing in an “Annotate” question.

A routine for every question

The same few steps work for every geography question, from a 1-mark reading to a 16-mark discussion. Practised until they are automatic, they stop the commonest losses of marks: the wrong task, half the question, an undeveloped point or an unsupported conclusion.

  • To do:

    Underline the command term and decide which assessment objective it belongs to.

  • To do:

    Circle every element of the question: topic, place, scale, and each part (“costs and benefits”, “physical and human”).

  • To do:

    Check the marks and divide your time: about 1.5 minutes per mark in Paper 2, a little over 2 in Papers 1 and 3.

  • To do:

    For a stimulus, read the title, units and key first, then quote figures with units in your answer.

  • To do:

    In structured parts, give exactly the number of points asked for and develop each one (“because… so…”).

  • To do:

    Support every point in an extended answer with a named, located example with a figure or date.

  • To do:

    Add a labelled or annotated diagram or sketch map only where it supports a point, and refer to it.

  • To do:

    In AO3 answers, state your line of argument early, evaluate as you go, and end with a justified conclusion at the extent asked.

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More IB Geography notes

  • 6.3 Local and global resilienceThe page before this. HL only.
  • Paper 1: the optionsThe next page.
  • Geography assessmentEach Geography paper, the internal assessment and grade boundaries.
  • IB GeographyThe Geography syllabus, how it is assessed and every notes page.

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