What is Cohesion and Coherence in Writing?
Cohesion and Coherence are two critical dimensions of IELTS writing quality. Cohesion refers to how you connect ideas using linking words and reference; Coherence refers to the logical organization and flow of your thoughts. Together, they make your essay easy to follow and persuasive.
Cohesion is achieved through connectives (however, therefore, in addition) and reference; coherence is built through clear paragraph structure, topic sentences and logical progression of ideas. Both are separate IELTS scoring criteria worth up to 25% of your Writing band.
- 1↓CohesionLinking words, pronouns, repetition connecting sentences
- 2↓CoherenceLogical order, clear topic, supporting ideas progress
- 3Combined EffectReader follows argument effortlessly, persuaded by flow
Step-by-step worked examples
Weak: Climate change is serious. Temperatures rise. Glaciers melt. We must act.
Problem: No linking words. Sentences feel disconnected. Improved: Climate change is serious; moreover, rising temperatures cause glaciers to melt. Therefore, action is urgent. Fix: 'Moreover' + 'cause,' + 'Therefore' = flow + logic.
Weak: Young people use social media. It affects their mental health. Some benefits exist.
Problem: Contradicts itself; reader unsure of stance. Improved: While social media offers connectivity, it negatively impacts youth mental health through sleep disruption and social comparison. However, moderated use provides educational value. Fix: 'While' concedes, main idea clear; 'However' balances.
Weak: Education is important. Teachers influence students. Schools need funding.
Problem: Ideas connected but not a clear argument. Improved: Education shapes futures. Teachers, as primary influencers, require adequate resources. Consequently, schools demand increased funding to support quality instruction. Fix: Topic sentence, connectives 'as,' 'Consequently' = coherent argument.
Flashcards
Quick quiz
Q1.Which best describes cohesion?
Q2.Which sentence is more coherent?
Q3.What should a topic sentence do?
Q4.Which linking word shows consequence?
The full card deck, worked steps and AI-tutor support for “What is Cohesion and Coherence in Writing?” are in Notek — study by hand before your exam.
Common mistakes
Overusing connectives ('However, moreover, nevertheless, therefore, consequently, thus…' in one paragraph). — Correct: Use 2–3 well-placed linking words per paragraph; let ideas speak through structure.
Using connectives incorrectly (e.g., 'However' when you mean 'Furthermore'). — Correct: Match connective to logical relationship: contrast (However), addition (Furthermore), result (Therefore).
Weak topic sentences that don't guide the reader. — Correct: Start each body paragraph with a clear topic sentence that relates to your thesis.
Jumping between ideas without building progression. — Correct: Order ideas logically: introduce, explain, provide evidence, then conclude paragraph.
FAQ
What is the difference between cohesion and coherence?
Cohesion uses linking words/pronouns to connect sentences; coherence is logical order and flow of ideas.
Which linking words show cause-and-effect?
Therefore, consequently, as a result, because, since, leading to.
How can I improve coherence without connectives?
Use clear topic sentences, logical paragraph order, and strong supporting details.
Are connectives always necessary?
No — good organization can create coherence; connectives strengthen cohesion but don't replace logic.