Reading Comprehension: Summarising and Author's Purpose

A Today you'll learn

Identify the main idea and key supporting details in an unseen passage.
Determine an author's purpose: to inform, to persuade, or to entertain (PIE).
Write concise, objective summaries omitting personal bias and minor details.

B Let's understand

Reading comprehension is the ability to read text, process it, and understand its deeper meaning. Every well-written passage has a central theme or "main idea", supported by specific factual details. When analysing a text, consider the author’s purpose using the PIE acronym: Persuade (convince the reader of an opinion), Inform (teach facts and explanations), or Entertain (tell an engaging story or evoke emotion). Summarising involves distilling a longer passage down into its most important points using your own words, while keeping the summary concise, factual, and free from personal opinions.

C See it step by step

Example 1: Read the short excerpt: "The Arctic fox has thick fur that turns snow-white in winter and greyish-brown in summer. This camouflage helps it sneak up on prey and avoid predators in freezing temperatures." What is the main idea and author's purpose?

Step 1: Identify topic: The Arctic fox's seasonal fur adaptation.
Step 2: Find main idea: Arctic fox fur changes colour with seasons to aid camouflage and survival in extreme cold.
Step 3: Determine purpose: The text teaches scientific facts about an animal; the author's purpose is to Inform.

Example 2: How do you draft a 3-sentence summary of an informative passage?

Step 1: Sentence 1 states the topic and main idea clearly.
Step 2: Sentence 2 explains the key supporting evidence or process.
Step 3: Sentence 3 states the outcome or broader significance without adding personal opinion.

D Your turn

An informational textbook chapter on the water cycle is written primarily to:

Look back at "Let's understand" above for a clue.

E Ready to practise?

Key idea 1

The main idea is the primary point the author wants the reader to understand.

Supporting details provide evidence

Supporting details provide evidence, facts, and examples that uphold the main idea.

Author's purpose generally falls under PIE

Author's purpose generally falls under PIE: Persuade, Inform, or Entertain.

A summary must be brief

A summary must be brief, written in your own words, and focused strictly on key points.

Key idea 5

Avoid inserting your own opinions or unnecessary minor trivia into a summary.

Warm up

1. What does the acronym PIE stand for when discussing author's purpose?

2. What is the difference between the main idea and a supporting detail?

3. If an author writes an article titled "Why Plastic Straws Should Be Banned Worldwide", what is their purpose?

Practise

4. Read and identify purpose: "Once upon a time in a whispering willow forest, a mischievous badger lost his silver spectacles."

5. Name two things that should NEVER be included in an objective summary.

6. Explain how context clues help you decipher unfamiliar vocabulary in a passage.

Challenge

7. Write a 1-sentence main idea for a text explaining how bees pollinate flowers and help crops grow.

8. Summarise why regular exercise is beneficial for children in two concise sentences.

Download worksheet (PDF)

Question 1: What does the acronym PIE stand for when discussing author's purpose?

Answer: Persuade, Inform, Entertain

Question 2: What is the difference between the main idea and a supporting detail?

Answer: The main idea is the overarching central concept; supporting details are facts that explain or prove that concept

Question 3: If an author writes an article titled "Why Plastic Straws Should Be Banned Worldwide", what is their purpose?

Answer: To Persuade

Question 4: Read and identify purpose: "Once upon a time in a whispering willow forest, a mischievous badger lost his silver spectacles."

Answer: To Entertain

Question 5: Name two things that should NEVER be included in an objective summary.

Answer: Personal opinions/feelings and unnecessary minor details

Question 6: Explain how context clues help you decipher unfamiliar vocabulary in a passage.

Answer: Context clues (surrounding words, synonyms, explanations) provide hints to deduce the word's meaning

Question 7: Write a 1-sentence main idea for a text explaining how bees pollinate flowers and help crops grow.

Answer: Bees play an essential ecological role by pollinating flowers, which enables plants to reproduce and produce food

Question 8: Summarise why regular exercise is beneficial for children in two concise sentences.

Answer: Regular exercise strengthens growing bones and muscles while boosting cardiovascular stamina. It also sharpens mental focus and supports emotional well-being