Visual and source skills

What you'll learn

• How to deconstruct photographs, cartoons, pictures and diagrams without just describing them.
• How to interpret written sources and spot bias.
• How to evaluate the usefulness and reliability of maps, graphs, statistics and visual sources.
• How to suggest realistic improvements to sources in GCSE Geography questions.

Why visual and source skills matter

In Geography, you often answer questions using unfamiliar sources: a photograph of flooding in York, a cartoon about climate change, a map of migration routes, a graph of rainfall in Bangladesh, or an article about urban change in Lagos. The skill is not to “guess what the examiner wants”, but to treat the source as evidence.

The best answers usually do three things:

1. Use evidence from the source.
2. Link it to geographical knowledge.
3. Judge how useful or limited the source is.

The source analysis ladder

A helpful way to work is: observe → interpret → analyse → evaluate. Each stage goes deeper than the last.

Observe: what is actually there?

To observe means to identify visible or stated evidence without yet explaining it. In a photograph, this might include buildings, vegetation, people, vehicles, floodwater, coastal defences or land use. In a graph, it might include the highest value, lowest value, trend or anomaly.

For a visual source, ask:

• What can you see in the foreground, middle ground and background?
• Are there labels, arrows, symbols or a key?
• What is the location and scale: local, regional, national or global?
• Is there a date, season or time period?
• What is not shown?

Interpret: what does it suggest?

To interpret means to say what the evidence suggests. This goes beyond description.

For example, if a photograph shows standing water around homes in York, you might interpret that a local flood has disrupted transport and housing. If a cartoon shows Earth sweating under a blanket labelled “greenhouse gases”, you might interpret that it is criticising human-caused climate change.

Analyse: how and why is it happening?

To analyse means to break down the pattern or issue and explain links between causes, effects, processes and places.

Good analysis uses connectives such as:

• because
• therefore
• this suggests
• as a result
• however
• whereas

You might link a flood photograph to heavy rainfall, impermeable urban surfaces, river overflow, floodplain development or climate change increasing the likelihood of extreme rainfall. The exact explanation depends on the source and the place.

Evaluate: how useful is the source?

To evaluate means to make a judgement about the source’s usefulness, reliability or limitations.

A source can be useful but still limited. A photograph may clearly show flood impacts at a local scale, but it may not show the cause of the flood, the full affected area, or whether the event is typical.

Reading photographs, cartoons, pictures and diagrams

Photographs

Photographs are good for showing real places and visible impacts. They are often used for hazards, urban change, coasts, rivers, ecosystems and fieldwork.

But photographs are selective. The photographer chooses the angle, timing and framing. A dramatic photograph of coastal erosion at the Holderness Coast, for example, may show a collapsed cliff but not long-term erosion rates, sediment movement or the cost of defences.

When evaluating a photograph, comment on:

• Viewpoint: aerial, ground-level, close-up or wide view.
• Scale: one street, one settlement, one coastline or a wider region.
• Time: one moment only, or repeated images over time.
• Representativeness: whether it shows a typical place or an extreme example.

Cartoons

A cartoon is a simplified or exaggerated drawing used to make a point. Geography cartoons often appear in questions about climate change, development, globalisation, migration or resource use.

To interpret a cartoon, focus on:

• labels and captions
• symbols, such as money bags, factories, maps or animals
• exaggeration, such as oversized politicians or tiny citizens
• the message or viewpoint

Cartoons are useful for showing attitudes and arguments, but they are usually biased because they are designed to persuade.

Diagrams

A diagram is a simplified visual explanation of a process or system, such as longshore drift, a storm hydrograph, plate boundaries or the Demographic Transition Model.

Diagrams are useful because they simplify complex processes. Their limitation is that real places are messier. For example, a diagram of a destructive plate margin can show subduction clearly, but it may not show local geology, different earthquake depths or variations between countries such as Japan and Chile.

Analysing written articles

Written sources include newspaper reports, website extracts, government reports, charity campaigns, company statements and academic summaries. They can be about any scale, from a local housing development to global climate agreements.

Start with provenance

Before you trust an article, ask:

• Who wrote or published it?
• When was it published?
• Is it reporting, persuading, advertising or campaigning?
• Whose voices are included?
• Whose voices are missing?
• Does it use evidence, named places and data?

Recognising bias

Bias is not always obvious. A source may be biased through what it includes, what it leaves out, or the language it uses.

Look for:

• Loaded language: “disaster”, “invasion”, “miracle”, “ruined”.
• One-sided evidence: only one stakeholder is quoted.
• Missing data: claims are made without figures.
• Selective scale: focusing on a local benefit while ignoring regional or global impacts.
• Out-of-date information: especially for fast-changing issues like population, migration or economic development.

Maps, graphs and statistical techniques as sources

You may be asked why a source is useful, what problems it has, or how it could be improved. This applies to maps, graphs, statistics, photographs and diagrams.

Maps

Maps are useful for showing location, distribution and spatial pattern. A choropleth map can show life expectancy by country, while an OS map can show land use, relief and settlement patterns at a local scale.

Possible issues include:

• missing scale, north arrow or key
• categories that hide variation within areas
• out-of-date data
• unclear colours or symbols
• distortion on world maps
• too little detail for local decisions

Useful improvements include adding a clear title, date, source, scale, key, grid references, inset map, or a second map at a different scale.

Graphs

Graphs are useful for showing change over time, comparisons or relationships. For example, a climate graph can compare monthly rainfall and temperature, while a line graph can show population growth in a city such as Lagos.

Possible issues include:

• axes not labelled with units
• misleading scale
• missing data source or date
• too few data points
• no line of best fit when showing correlation
• anomalies not explained

Statistical techniques

A statistical technique is a method used to summarise or analyse numerical data. Common examples include mean, median, range, percentage change and measures of spread.

Use statistics carefully:

• The mean uses all values, but can be distorted by extreme values.
• The median is the middle value, so it is useful for skewed data such as income.
• The range shows spread, but only uses the highest and lowest values.
• Percentage change is useful for comparing places of different sizes.

For percentage change, use:

$$percentage\; change=\frac{new\; value-old\; value}{old\; value}\times 100$$

Suggesting improvements to sources

When asked to suggest improvements, do not just say “make it better” or “add more information”. Be specific.

Strong improvements include:

• Use a larger sample size for fieldwork data.
• Collect data at different times or in different seasons.
• Add a scale, key, date and source to a map.
• Use a more suitable graph type, such as a line graph for change over time.
• Include multiple viewpoints in an article.
• Compare the source with another source, such as a photograph plus rainfall data.
• Use named, reliable sources such as the Met Office, Office for National Statistics, World Bank or local council data.

Useful sentence starters

Try these when writing about unfamiliar sources:

• “The source suggests this because…”
• “Evidence for this is…”
• “This may indicate…”
• “However, the source is limited because…”
• “It would be more reliable if…”
• “A further source that would help is…”
• “This is useful at a local/national/global scale because…”