Main Idea
Reading Comprehension: Main Idea
Main Idea
Main Idea
What you'll learn
- The main idea is the one central point a passage is mostly about.
- Supporting details are the smaller facts and sentences that build up the main idea.
- A good title sums up the main idea in just a few words.
- To find the main idea by looking at the whole passage, not just one sentence.
Key concepts
Level 1 — Finding the main idea
Verbal: Ask yourself: "What is this passage mostly talking about, from start to end?"
| Passage clue | Main idea |
|---|---|
| Every sentence about Meera getting ready | Meera getting ready for school |
| Every sentence about a farmer's tasks | A farmer's busy day of work |
Level 2 — Main idea vs details
Verbal: Details are small facts; the main idea is the big picture they all point to.
| Detail | Main idea it supports |
|---|---|
| "She brushed her teeth and ate breakfast." | Getting ready for school |
| "He fed the cows and watered the fields." | A farmer's day of work |
Real-life: Newspaper headlines are short main ideas for longer news stories.
Worked example
Passage: "Ravi practised cricket every day. He woke up early and ran laps before batting practice. His coach said he was improving fast."
What is the main idea?
Step 1 — Every sentence is about Ravi's cricket practice.
Step 2 — The small details (running laps, coach's comment) all support this.
Answer: Ravi practising cricket to improve.
Common mistakes
| Mistake | Why it happens | Fix |
|---|---|---|
| Picking one small detail as the main idea | Focusing on only one sentence | Look at what ALL sentences have in common |
| Choosing an idea not in the passage | Guessing without reading carefully | Only choose ideas supported by the text |
| Confusing title with a full summary | Titles are short | Keep the main idea short and clear |
| Ignoring the last sentence | Reading only the first line | Read the whole passage before deciding |
Quick check
- Read a short paragraph from your reader and state its main idea in one sentence.
- Pick a title for a paragraph about a rainy day.
- Name one supporting detail for the main idea "a farmer's busy day".
- Stretch: Write a 3-sentence passage and ask a friend to guess its main idea.
Revision tip: After reading any paragraph, pause and say its main idea aloud in five words or less.
Open the Practice tab for graded questions on Main Idea.
Key Takeaways (TL;DR)
- What you'll learn
- Key concepts
- Worked example
- Common mistakes
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