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How English Works | Cohesion and Coherence

Three students in school uniforms work through open books at a classroom table, with textbooks and stationery nearby and study notes on the whiteboard behind them.

eduKateSG · HOW ENGLISH WORKS · FOUNDATIONS

Connect wording with intelligible thought

Choose a reading route, or follow the complete guide in order. Each chapter keeps the explanation connected to examples and use.

ROUTE 1 · CHAPTERS 1–4

Follow meaning and reference

Connections, reader understanding, pronouns and demonstratives.

ROUTE 2 · CHAPTERS 5–8

Explore linguistic ties

Repetition, vocabulary chains, substitution and ellipsis.

ROUTE 3 · CHAPTERS 9–12

Inspect logical progression

Connectors, contrast, addition and given-to-new information.

ROUTE 4 · CHAPTERS 13–16

Connect the whole text

Sequence, transitions, purpose and audience knowledge.

ROUTE 5 · CHAPTERS 17–20

Compare, repair and practise

A relationship table, revision and explained answers.

Full chapter index · Practice and answers · The whole English map

A text can contain correct sentences and still be difficult to follow. “The library closes at five. Therefore, my bag is green” has a grammatical connector, but no explained relationship between its claims. Connections need to make sense, not merely look connected.

Cohesion concerns the linguistic ties that link parts of a text. Coherence concerns whether readers can understand those parts as an intelligible whole. The distinction helps writers diagnose two different problems: missing or unclear links, and an arrangement of ideas that does not support the intended understanding.

The preceding guide, Paragraphs and Development, explains how sentences cooperate around a local thought. This guide follows information between those sentences and beyond the paragraph. All worked situations are invented teaching examples.

CHAPTER 1 OF 20 · Follow meaning and reference

1. Connected wording is not connected thinking

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“The hall was crowded. This made the doorway difficult to reach.” The word “this” connects the second sentence to the situation in the first. The cause-and-consequence relationship also makes sense within the example. Wording and thought cooperate.

Now consider “The hall was crowded. This explains why the moon is bright.” The same cohesive form appears, but the intended explanation is not recoverable. Unless a special fictional context supplies the connection, the reader is left with an unsupported jump.

When checking writing, ask both questions: Can I identify what each connecting expression points to? And can I explain why the ideas belong together? Repairing only one side may leave the text confusing. A clear pronoun cannot rescue an irrelevant conclusion.

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CHAPTER 2 OF 20 · Follow meaning and reference

2. Follow the reader’s developing understanding

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Readers construct an understanding of participants, events, relationships and purpose as a text unfolds. Each sentence may add information, revise an expectation or connect what has already been introduced. A writer can help by making these changes recoverable.

“A new reading corner opened on Monday. Its shelves contain short stories and reference books.” The second sentence continues with an already introduced place. “Its” helps the reader connect the shelves with that corner rather than invent a new location.

Readers can fill some gaps, but not every gap. If a text suddenly mentions “the second entrance” without establishing a building or entrances, the writer may be relying on information the audience lacks. Check what the reader has actually been given at that point.

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CHAPTER 3 OF 20 · Follow meaning and reference

3. Reference keeps track of participants

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Pronouns and other reference expressions can keep a text from repeating full names constantly. “Arun borrowed a compass. He returned it after the lesson.” In this simple example, “he” refers to Arun and “it” to the compass.

Reference becomes harder when several candidates appear. “Arun lent Daniel his compass” may leave ownership unclear. “Arun lent his own compass to Daniel” or “Arun lent Daniel the compass that Daniel had left behind” expresses different meanings explicitly.

Do not choose the nearest noun mechanically as the referent. Meaning, grammar and context all matter. The writer’s responsibility is to give enough information for the intended reference to be recoverable, especially when misunderstanding would change an action or a claim.

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CHAPTER 4 OF 20 · Follow meaning and reference

4. Demonstratives can point to whole ideas

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“This”, “that”, “these” and “those” can refer to objects, statements or situations. “The labels faded after the boxes were washed. This made sorting difficult” points to the preceding event, not simply to the noun “boxes”.

Sometimes the scope is uncertain. “The teacher changed the deadline and shortened the task. This worried the class.” What worried them: the new deadline, the shorter task or the combination? If the distinction matters, name it.

“The earlier deadline worried the class” is less compact but more precise. A helpful revision is to replace a broad demonstrative with a noun phrase that identifies its target: “this delay”, “that proposal”, “these missing instructions”. Naming the relationship can make the text easier to inspect.

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CHAPTER 5 OF 20 · Explore linguistic ties

5. Repetition can stabilise a subject

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Repeated words are not automatically poor writing. If a paragraph compares a route and a schedule, repeatedly naming the route may prevent confusion. Forced synonyms can make one stable object sound like several different objects.

“The timetable was revised. The plan was then printed. The programme contained three errors.” Are timetable, plan and programme one document or three? A writer who changes words only to avoid repetition can accidentally change the reader’s understanding.

Use repetition when precision needs it, and variation when it preserves the intended relationship. Repeated wording becomes wasteful when it repeats the same contribution without adding anything. That is a development problem, not merely a vocabulary problem.

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CHAPTER 6 OF 20 · Explore linguistic ties

6. Related vocabulary builds a chain

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A text can stay connected through related words: “book”, “chapter”, “page”, “index” and “reader” may contribute to a discussion of using a reference text. These are not synonyms, but their relationships help sustain the subject.

The relationships still need appropriate explanation. A paragraph that lists “book, shelf, author, printer, paper” has associated vocabulary but no necessarily coherent point. Readers need to know what is being explained about these items.

Inspect a lexical chain by circling key terms and checking their roles. Does “collection” refer to gathering materials in one sentence and a set of books in the next? A word can remain identical while its meaning shifts. Make such shifts explicit when they might disrupt understanding.

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CHAPTER 7 OF 20 · Explore linguistic ties

7. Substitution avoids unnecessary repetition

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English can replace a repeated expression with forms such as “one”, “ones” or “do so”. “The red folder is damaged; use the blue one” lets “one” stand for a folder. “Students who have not registered should do so before Friday” points back to registering.

These forms work when readers can recover the missing content. “Take one” is useful beside an obvious stack of forms, but unclear in a message that mentions pencils, cards and worksheets together.

The goal is not to use substitution as often as possible. Choose it when it keeps a clear relationship concise. Restore the full expression when there are competing possibilities, a long gap or a consequential instruction. Clarity has priority over avoiding repeated nouns.

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CHAPTER 8 OF 20 · Explore linguistic ties

8. Ellipsis relies on recoverable material

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Ellipsis leaves some material unspoken or unwritten because the context supplies it. “Lina chose the morning session; Farid, the afternoon session” allows readers to recover “chose” for the second part.

In conversation, “Coming tomorrow?” may function as an understandable question when the participants share a situation. The same fragment in an isolated formal notice may leave the reader wondering who is coming and where.

Omission is not inherently an error. Its success depends on what can reasonably be recovered. During revision, expand an abbreviated passage mentally. If several different expansions are possible and the difference matters, include the missing information. Do not mistake your own knowledge for the reader’s access to it.

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CHAPTER 9 OF 20 · Inspect logical progression

9. Connectors label relationships

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“However” often signals contrast, “therefore” a conclusion and “for example” an illustration. These words guide readers towards a relationship. They do not create a valid relationship simply by appearing.

“The boxes were labelled. Therefore, the labels were readable” does not follow necessarily: a label can exist and still be too small or damaged. The connector asks the reader to accept a conclusion that the first sentence has not established.

Before selecting a connector, describe the relationship in plain words. Is the second statement a consequence, a contrasting observation, an additional point or a specific instance? If no relationship can be explained, revise the content. A connector is a signpost, not a substitute for a road.

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CHAPTER 10 OF 20 · Inspect logical progression

10. Contrast needs a relevant difference

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“The first notice gives a date, whereas the second gives only a week” contrasts the precision of the notices. Both sides concern the same dimension. Readers can see why the comparison matters.

“The first notice gives a date. However, the corridor is long” introduces an unexplained contrast. Perhaps the long corridor affects visibility, but the writer has not supplied that connection.

A useful contrast can also qualify a claim: “The new shelf is easier to reach. However, its labels are still unclear.” Accessibility improved, but identification remains a problem. The second statement narrows a possible conclusion that the whole arrangement is now satisfactory. It need not contradict the first statement to be useful.

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CHAPTER 11 OF 20 · Inspect logical progression

11. Addition should add relevant work

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“Also”, “furthermore” and “in addition” tell readers that another point is arriving. The new point should contribute to the same purpose or to an explicitly identified expansion of that purpose.

“The route is shorter. It also avoids the uncovered crossing” adds another relevant feature in a discussion of route choice. “The route is shorter. Furthermore, my cousin plays the guitar” changes subject without justification.

A series of additions can become a pile rather than a progression. Group related points and explain their significance. If three advantages support one proposal, readers may need a sentence showing how they combine, not just three increasingly emphatic addition words.

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CHAPTER 12 OF 20 · Inspect logical progression

12. Given information can lead into new information

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One useful pattern begins with something the reader already knows and adds something new about it. “A storage trolley stood beside the door. The trolley held three labelled trays. Each tray contained materials for one group.” Information introduced at one step becomes a starting point at the next.

This is a helpful pattern, not a universal sentence rule. Writers may deliberately foreground new information, create suspense or contrast alternatives. Repetitive use of the same pattern can sound mechanical.

When a passage feels jumpy, inspect its openings. Do they provide a recognisable foothold, or repeatedly introduce unrelated items? Changing sentence order can sometimes repair the difficulty without adding a single connector.

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CHAPTER 13 OF 20 · Connect the whole text

13. Sequence makes dependencies visible

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In a process, order may be necessary for the actions to work. “Check the name before handing over the envelope” makes a dependency explicit. Reversing those steps could defeat the purpose of the check.

In an explanation, sequence may instead follow what the reader needs to understand first. Define an unfamiliar distinction before using it to interpret an example. Introduce the proposal before evaluating its limits.

Sequence words help only if they match the actual order. “Finally” is misleading if several new stages follow. Read a procedure as a participant would use it, and read an explanation as a newcomer would encounter it. The writer’s drafting order need not become the reader’s reading order.

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CHAPTER 14 OF 20 · Connect the whole text

14. Transitions connect paragraph purposes

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A transition between paragraphs can carry forward an established issue while signalling a new task. “Clarity is only one requirement; the notice must also reach its intended readers” moves from wording to distribution.

This transition works because it names both the connection and the change. “Furthermore” alone may be enough in a simple sequence, but it cannot always explain why a new paragraph belongs.

Try summarising each paragraph’s job in a few words. Then inspect the handover: does the next paragraph answer a question raised by the previous one, qualify it, compare it or move to a new stage? If the relationship is weak, repair the arrangement before decorating the boundary with a transition phrase.

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CHAPTER 15 OF 20 · Connect the whole text

15. Whole-text coherence needs a purpose

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A whole text can be locally clear and globally confusing. Each paragraph may develop its own point, yet the collection may not answer the title’s question. A guide promising to explain a procedure should not spend most of its space on unrelated memories.

Purpose helps determine relevance and order. A report explaining a delay may organise observations around contributing factors. A narrative may organise experiences around a developing event. Neither requires exactly the same architecture.

Make a reverse outline after drafting: list the actual function of each paragraph, not the function you intended it to have. Read that list independently. It often reveals repetitions, missing stages and detours that are harder to notice inside polished prose.

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CHAPTER 16 OF 20 · Connect the whole text

16. Readers bring knowledge, but not identical knowledge

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Some connections depend on shared knowledge. “The bell rang. The class packed away” is readily understandable in many school contexts, although the text has not explained what the bell signals.

The same assumption may fail for a reader unfamiliar with the routine. A necessary explanation might be brief: “The end-of-lesson bell rang.” Choosing how much to supply depends on the intended audience and the consequences of misunderstanding.

Do not explain everything, but do not rely on everything either. Mark the knowledge essential to the passage’s logic. If the audience cannot reasonably be expected to share it, provide it. The next guide will examine context in more detail.

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CHAPTER 17 OF 20 · Compare, repair and practise

17. Compare visible ties and underlying sense

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PassageVisible connectionWhat to inspect
The trays were labelled. This helped students identify their materials.This points to the labelling.The proposed benefit is understandable in the example.
The trays were labelled. Therefore, everyone arrived early.Therefore signals a conclusion.The conclusion lacks an explained bridge.
The trays were labelled. The printed names matched the group list.Related vocabulary links names, labels and groups.The second sentence develops how identification worked.
The trays were labelled. The tray was missing.Tray repeats the subject vocabulary.Which tray, and when? The relationship is underspecified.
A worked comparison of the relationships explained in this guide.

A passage may need both reference repair and reasoning repair. Treat the table as a diagnostic tool, not a scoring system in which more connectors automatically mean better writing.

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CHAPTER 18 OF 20 · Compare, repair and practise

18. Repair the relationship before the decoration

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First identify the intended relationship between sentences. Next check whether the necessary information is present. Then choose reference expressions, repeated terms or connectors that help readers recover it.

For example, “The room was locked. However, we waited outside” may use contrast where consequence was intended. “The room was locked, so we waited outside” gives a more natural relation for that situation. But if the intended contrast is with a plan to wait indoors, adding that plan may be necessary.

Finally read without mentally supplying background that is absent from the text. Ask what a newcomer could actually infer. The best repair may be a named participant, a moved sentence or a missing condition rather than an additional transition word.

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CHAPTER 19 OF 20 · Compare, repair and practise

19. Practice and explained answers

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Task 1. Repair the reference: “Nora gave Priya her notebook because she had missed the lesson.”

Possible answer. “Nora lent her own notebook to Priya because Priya had missed the lesson.” This makes one possible intended meaning explicit. The original could support other ownership or participant relationships; revision must match the writer’s intention, not guess it.

Task 2. Is this conclusion supported? “The announcement was short. Therefore, every student understood it.” Answer. No. Brevity does not establish understanding. The text would need relevant evidence, or a narrower statement about a possible advantage of brevity.

Task 3. Add a useful continuation: “The main entrance was closed.” Possible answer. “Visitors therefore used the side entrance marked on the notice.” The example provides an alternative route and an understandable consequence. In real reporting, those details must be checked.

Task 4. Should “timetable” become “programme” simply to avoid repetition? Answer. Only if the replacement preserves the intended referent and meaning. Consistent naming may be clearer.

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CHAPTER 20 OF 20 · Compare, repair and practise

20. Reconnect connections with interpretation

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Cohesion helps readers follow information. Coherence helps them understand what that information amounts to. Neither is achieved by counting transition words. A writer needs recoverable reference, relevant development and an arrangement suited to the purpose.

When reading, pause at confusion and ask whether the trouble is an unclear expression, missing background, unsupported relationship or larger change of direction. Different problems call for different repairs.

The next guide, Context and Interpretation, asks what surrounding information makes meaning recoverable and what happens when a message travels beyond its original situation. Return to the whole English map for the complete series route.

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Reference Notes

These explanations and examples are original. Complementary guidance on paragraph unity, coherence and organisation appears in Purdue OWL’s On Paragraphs and the UNC Writing Center’s Paragraphs. The invented examples illustrate distinctions; they do not provide empirical evidence about classrooms.