The Core Aim of English Mastery

English mastery becomes easier to follow when sentences do not behave like isolated islands. Cohesive devices help readers and listeners understand how one idea connects to another through reference, repetition, substitution, conjunction and lexical relationships.

Cohesive devices are the language resources that help a text hang together. Their core aim is not to decorate every sentence with transition words. The stronger aim is to make relationships recoverable: who or what a pronoun refers to, how ideas contrast, what is being repeated, which concept continues across sentences and how the reader should connect one part of the text to the next.

At eduKateSG, we therefore teach cohesion as relationship signalling rather than connector collecting. Words such as however, therefore and meanwhile matter, but cohesion also comes from reference chains, repeated key terms, synonyms, ellipsis and carefully managed sentence order.

This article is part of the eduKateSG English Learning Hub. It owns the purpose and target state of cohesive devices. For paragraph-level organisation, see The Core Aim of English Mastery | Paragraph Writing. For sentence-level structure, see The Core Aim of English Mastery | Sentence Structure.

The Core Aim: Make Relationships Between Sentences Easy to Recover

A useful first-principles definition is:

Cohesive devices are linguistic signals that help readers identify how words, sentences and ideas belong together.

Consider these sentences:

Maya bought a second-hand bicycle. The purchase saved her money. However, it needed new brakes.

The phrase the purchase refers back to buying the bicycle, while it refers to the bicycle. However signals contrast between the financial benefit and the repair problem. Cohesion is doing several jobs at once.

Singapore’s English Language Syllabus 2020 emphasises speaking, writing and representing coherently and cohesively for different purposes, audiences, contexts and cultures. Cohesive devices are one of the practical resources learners use to achieve that coherence. See the MOE English Language Syllabus 2020 Secondary.

The Hidden Cohesion Problem: More Connectors Can Make Writing Worse

Students often learn lists of transition words and then place one at the beginning of every sentence. The result can sound mechanical because the logical relationship has not actually changed.

Cohesion is not the number of connectors in a paragraph. It is the clarity of the relationships they signal.

A strong paragraph may use very few explicit connectors because sentence order, reference and repeated vocabulary already make the logic clear.

What Cohesive Devices Actually Include

Reference: pronouns and demonstratives such as he, this, these and such.
Lexical repetition: repeated key terms that keep the topic stable.
Synonymy and related vocabulary: lexical chains that continue the same semantic field.
Substitution: replacing repeated material with forms such as one, do so or the former.
Ellipsis: leaving out recoverable language to avoid unnecessary repetition.
Conjunction: signalling addition, contrast, cause, sequence, condition or result.
Parallel structure: using similar grammatical forms to clarify relationships.
Theme progression: arranging sentence openings so the reader can track how the topic develops.

Transition Words Are Only One Part of Cohesion

Transition words are useful because they make logical relationships explicit. Common categories include:

Addition: moreover, furthermore, in addition.
Contrast: however, nevertheless, in contrast.
Cause and result: therefore, consequently, as a result.
Example: for example, for instance.
Sequence: first, subsequently, finally.
Qualification: although, even so, despite this.

The important question is whether the chosen connector matches the actual relationship. See also Top 100 Secondary 3 Transition Words.

Our First-Principles Cohesion Method

1. Diagnose the relationship failure

A paragraph may be hard to follow because references are unclear, connectors are wrong, topics jump, vocabulary chains disappear or sentence order is weak. We identify the first relationship that breaks.

2. Fence the paragraph

We work with one paragraph first and identify what every sentence is doing in relation to the sentence before it.

3. Remove connectors before adding them

Sometimes we delete all transition words and ask whether the logic can still be recovered from sentence order and reference. Then we add only the connectors that genuinely clarify relationships.

4. Track reference chains

Students identify what pronouns and demonstratives refer to. If more than one referent is plausible, the wording is repaired.

5. Build lexical continuity

Key terms and related words are repeated deliberately so the reader can recognise topic continuity without monotonous duplication.

What Happens During a 90-Minute Cohesion Lesson

Paragraph map: identify the job of each sentence.
Reference check: trace every pronoun and demonstrative.
Connector audit: identify the relationship each linking word claims to signal.
Order test: rearrange sentences and compare clarity.
Lexical chain: mark repeated and related vocabulary.
Repair: rewrite confusing transitions or references.
Production: write a new cohesive paragraph without overusing connectors.
Transfer: apply the same process to an essay or report.

Three Cohesion Pathways

The repair pathway

This learner writes sentences that are individually correct but disconnected. The priority is topic continuity, reference and basic logical connectors.

The stabilisation pathway

This learner uses many connectors but some are mechanical or inaccurate. The priority is relationship accuracy and lexical cohesion.

The extension pathway

This learner already writes cohesively and can work on theme progression, subtle reference chains, paragraph transitions and cohesion across longer academic texts.

How We Reduce Common Cohesion Mistakes

Connector overload: add linking words only where the relationship needs signalling.
Wrong connector: identify whether the real relationship is contrast, cause, sequence or addition.
Unclear pronouns: make the referent unmistakable.
Topic jumps: restore lexical continuity or create a new paragraph.
Repetition fear: repeat a key term when synonym replacement would create confusion.
Formulaic transitions: let logic and sentence order carry more of the cohesion.

What Progress Should Look Like

Pronoun references become clearer.
Transition words become fewer but more accurate.
Paragraphs maintain topic continuity more naturally.
Sentence order reflects logical relationships.
Repeated key vocabulary is used strategically.
Writing sounds less formulaic.
Longer essays become easier to follow across paragraphs.

A Simple Weekly Cohesion Plan

Choose one paragraph.
Underline every connector.
Label the relationship each connector signals.
Circle every pronoun and identify its referent.
Mark repeated or related vocabulary.
Remove one unnecessary connector.
Rewrite one unclear reference.

Cohesive Devices and Singapore’s SEC English

In 2027, Singapore’s N(T), N(A) and O-Level certificates are combined into the Singapore-Cambridge Secondary Education Certificate. SEAB lists English Language at G1 (K100), G2 (K200) and G3 (K300). Across these subject levels, cohesion supports clear writing, comprehension and purposeful communication. See the current SEAB SEC syllabus pages.

Frequently Asked Questions

Are cohesive devices the same as transition words?

No. Transition words are one kind of cohesive device. Reference, repetition, substitution, ellipsis and lexical chains also create cohesion.

Should every sentence begin with a connector?

No. Too many explicit connectors can make writing mechanical. Use them when the relationship genuinely benefits from signalling.

What is the difference between cohesion and coherence?

Cohesion concerns the language links among parts of the text. Coherence is the larger sense that the ideas themselves make logical and meaningful sense together.

Helpful Reading in the eduKateSG Ecosystem

The Cohesion Principle

The core aim of cohesive devices is not to decorate sentences with linking words.

It is to make relationships between ideas easy to recover.

The Core Aim of English Mastery | Cohesive Devices