Essay Organization and Structure

A well-written expository essay has three main parts: the Introduction, the Body, and the Conclusion. Each part serves a specific purpose, and together they create a logical, unified piece of writing.

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The Introduction

The introduction is the first paragraph (or sometimes two paragraphs) of the essay. Its purpose is to:

• Capture the reader’s attention
• Provide background information on the topic
• Present the thesis statement

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1. The Hook

The hook is the first sentence or two that grabs attention.

Types of hooks:

• Startling fact or statistic: “Millions of tonnes of plastic enter oceans every year.”
• Question: “Have you ever wondered why poverty still exists?”
• Quotation: “Imagination is more important than knowledge.”
• Anecdote: A short real-life story
• Bold statement: “The way we eat is destroying the planet.”
• Definition: Explaining a key term

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2. Background Information

Gives context about the topic and connects the hook to the thesis.

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3. Thesis Statement

The main idea of the essay (1–2 sentences).

• Clear and specific
• Shows essay focus
• Not a fact, but a claim

Weak: Global warming is a problem.
Strong: Global warming, caused by emissions and deforestation, threatens ecosystems and human life.

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Body Paragraphs

Usually 3–5 paragraphs. Each paragraph focuses on one idea.

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1. Topic Sentence

• First sentence
• Main idea
• Links to thesis

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2. Supporting Evidence
Includes:

• facts and statistics
• examples
• quotations
• explanations

(Always explain evidence.)

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3. Transitional Devices

• Adding: furthermore, moreover, in addition
• Contrast: however, on the other hand
• Cause/Effect: therefore, as a result
• Examples: for example, for instance
• Sequence: first, second, finally

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4. Concluding Sentence

• Restates idea
• May connect to next paragraph

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The Conclusion

Final paragraph of the essay.

• Restates thesis (different words)
• Summarizes main points
• Gives final thought

Types:

• Summary
• Synthesis
• Call to action
• Prediction
• Quotation
• Rhetorical question

What NOT to do:

• No new ideas
• Don’t copy thesis
• Don’t overuse “In conclusion”
• Don’t make it too long

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Ensuring Cohesion and Coherence

Cohesion:

• transitions
• pronouns
• repetition of keywords
• parallel structure

Coherence:

• one idea per paragraph
• logical order
• clear thesis
• all paragraphs support thesis