Synthesising Material from Several Sources: Study Guide (English Language 6.1)

From using a source to synthesising sources

In an argument essay you may have used one source to support one point: a statistic here, a quotation there. Synthesis is the next step. According to the course framework, when synthesising, writers:

• draw upon arguments from multiple sources;
• strategically select the most relevant information; and
• combine apt and specific source material as part of their own argument.

Three ideas hold this together. The argument is yours: sources serve your claim. The selection is strategic: you choose what advances your point, not everything the source says. The combination is apt and specific: the sources work together on a particular idea, not just side by side.

The framework also reminds us that a source provides information for an argument, and that some sources are more reliable or credible than others. A strong synthesis considers the quality of its sources as well as their content (Topic 6.3 returns to this).

Summary versus synthesis

A common weakness is the source-by-source summary:

Source A says that most residents want more green space. Source B says that shopkeepers need parking. Source C says that a town in the north had a mixed result.

This reports, but the writer has made no argument. Each sentence belongs to a source, and the writer has not said what the sources mean together.

A synthesis begins with the writer’s idea and uses sources to build it:

Whether a town centre should turn a car park into green space depends less on whether residents want it, as the council’s survey suggests, than on whether the change is planned with the shops in mind, as both a local shopkeeper’s warning and a planner’s case study imply.

Here the writer’s claim is the subject of the sentence; the sources are the evidence, and each is introduced for a purpose.

Feature	Source-by-source summary	Synthesis
Organising principle	The sources, one after another	The writer’s idea
Subject of sentences	“Source A says…”	The issue or the claim
Relationship between sources	None stated	Agreement, extension, qualification or conflict explained
Commentary	Little or none	The writer explains what the sources show together
Selection	Everything	Only what is relevant

Ways of bringing source material in

Method	When to use it	Example (using the sources in the box below)
Quotation	When the exact words matter or add force	A shopkeeper warns that “trees don’t buy bread”
Paraphrase	To restate a specific point in your own words	The shopkeeper argues that the car park brings in customers who spend about £40 each
Summary	To compress a long passage	The planner’s article describes a northern town’s conversion and its uneven results

Whatever the method, you must attribute the material and comment on it. A quotation dropped into a paragraph with no introduction (a “dropped quote”) is weaker than one that is introduced and explained.

Signal phrases help: “According to the council’s survey…”, “As one shopkeeper warns…”, “A planner who studied a similar conversion notes that…”. Choose verbs that say how the writer is using the source: notes, warns, concedes, argues, observes, suggests.

Combining sources: four moves

Sources can relate to one another and to your claim in four ways.

1. Agreement: two sources support the same point. “Both the survey and the planner suggest…”.
2. Extension: one source adds to another. “The planner goes further, showing that…”.
3. Qualification: one source limits another. “The survey’s 62% should not hide…”.
4. Conflict: the sources disagree, and you explain why or choose between them.

Strong synthesis often uses more than one move in a paragraph.

Sources used in this guide (invented for practice).

Source A (summary of a town council survey, fictional): “In the council’s autumn survey of 800 residents, 62% said the town centre needs more green space and 21% said it needs more parking. The remaining 17% had no preference.”

Source B (letter to a local newspaper from a shopkeeper, fictional): “My customers drive in from the villages. Take away the car park and you take away the people who spend £40 each on a Saturday morning. Trees don’t buy bread.”

Source C (article by an urban planner, fictional): “When a town in the north converted a car park to a market square, footfall rose in the first year, but shops on the far side of the square reported no gain. Careful placement of seating and signs mattered more than the existence of the square.”

Worked example 1: building a synthesis paragraph

Task. Argue whether the town should convert its central car park into a green square, using sources A, B and C.

Step 1: Decide on your own claim. The writer chooses a qualified position: the town should convert the car park, but only with a plan to protect the shops.

Step 2: Select the relevant material.

• From A: the 62% to 21% preference. This supports the idea that residents want green space (but note the sample is 800 residents and says nothing about shoppers from the villages).
• From B: the point that the car park brings visitors from the villages who spend about £40 each. This qualifies A, because the survey asks residents only.
• From C: the point that placement of seating and signs mattered, so shops on the far side did not gain. This extends B and gives a way forward.

Step 3: Plan the order by idea. Residents’ support, then the risk to shops, then the planner’s solution.

Step 4: Draft.

The strongest case for converting the car park is that residents want it: in the council’s survey of 800, 62% asked for more green space and only 21% for more parking. But that survey asks residents, not the visitors from the villages who, as a shopkeeper points out, spend around £40 each on a Saturday morning, and who might not return if they cannot park. The risk is real, and a planner who studied a similar conversion suggests how to manage it: the benefits did not reach the shops on the far side of the square, and she concludes that careful placement of seating and signs mattered more than the square itself. The town should therefore build the square, but plan its layout around the shops that need the trade.

Step 5: Check the synthesis. The claim organises the paragraph. Each source is attributed. The sources are used in relation: A supports, B qualifies, C extends and supplies a remedy. Commentary (“the survey asks residents, not visitors”) shows the writer’s own thinking.

Worked example 2: improving a weak synthesis

Draft (Marlbridge example).

Source A says 62% of residents want green space. Source B says the car park brings customers. Source C says a town in the north converted a car park. I think the town should convert the car park.

Step 1: Diagnose. The paragraph reports each source in turn (“Source A says…”, “Source B says…”) and states an opinion at the end without connecting it to the sources. There is no commentary, and no relationship is drawn.

Step 2: Find the idea the sources share. A shows demand; B shows a cost; C shows that the cost depends on design. The idea is that the conversion is worthwhile only if its costs are managed.

Step 3: Rebuild around the idea.

Converting the car park is worthwhile only if its costs are managed. The council’s survey shows demand, with 62% of residents asking for green space, but a shopkeeper’s letter shows the cost: customers who drive in from the villages and spend about £40 each. A planner’s study of a northern town suggests that the cost can be reduced, because the shops that lost out were those the square’s layout ignored.

Step 4: Check. The claim opens the paragraph. Each source has a role. The sources are in conversation. The final sentence states the lesson.

Common misconceptions

• “Synthesis means using every source.” It means selecting the most relevant material, often not all of it.
• “A paragraph per source is the safest structure.” It tends to produce summary. Organise by idea.
• “Quoting a source is the same as arguing.” The writer’s commentary is the argument.
• “All sources are equally trustworthy.” Credibility varies. Say so when it matters.
• “Paraphrase is just changing a few words.” Paraphrase restates the meaning in new wording and structure and must still be attributed.
• “My opinion should not appear.” In a synthesis essay your claim is the point; sources support it.

Where this leads

Next, Topic 6.2 distinguishes position from perspective, and Topic 6.3 looks at bias and limitations in sources. To review how evidence and commentary fit in a paragraph, see Topic 5.1. Check your learning with the practice questions, the revision notes and the checklist.