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A.1 Read and identify the main idea of the text

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What is the main idea?

The main idea is the most important thought or point that an author wants the reader to understand about a text. It tells what the text is mostly about.

Examples:
  • Text: “Dogs need food, water, and exercise to stay healthy.”
    Main Idea: Dogs must have care to stay healthy.
  • Text: “The sun gives us light, warmth, and energy.”
    Main Idea: The sun is important because it provides many things we need.
Note

The main idea is not just one detail—it is the central message that ties all the details together.

How do you find the main idea?

To find the main idea, look for what the text is mostly talking about. Then think about the key details that support that idea.

Steps:
  • Read the text carefully.
  • Ask yourself: What is this text mainly about?
  • Check which details repeat or support the same idea.
  • Write the main idea in your own words.
Note

If you can explain the passage in one clear sentence, you probably found the main idea.

Main idea vs. supporting details

The main idea tells the big picture, while supporting details give facts, reasons, or examples that explain or prove it.

Example:

Text: “Rainforests are important. They provide oxygen, homes for animals, and medicines for people.”

  • Main Idea: Rainforests are important.
  • Supporting Details: They provide oxygen, shelter animals, and supply medicines.
Note

Details cannot stand alone—they always connect back to the main idea.

Finding the main idea in paragraphs and longer texts

The main idea can be in a single sentence or spread across a longer passage. In longer texts, each paragraph often has its own main idea that supports the overall message.

Examples:
  • Paragraph: “Penguins live in cold places. They have thick feathers and layers of fat to stay warm.”
    Main Idea: Penguins have body features that help them survive in cold climates.
  • Longer Text: A passage about recycling may include paragraphs on saving energy, reducing waste, and protecting animals.
    Main Idea: Recycling helps the environment in many ways.
Note

Look for repeated words and ideas throughout the passage to discover the main idea.

Practice identifying main ideas

To become better at finding the main idea, practice by reading different texts and summarizing them in one clear sentence.

Practice Tip:
  • Read a short passage.
  • Highlight important words or ideas.
  • Ask yourself: “What does the author want me to remember?”
  • Write the main idea in your own words.
Note

The more you practice, the easier it will be to see the main idea quickly and clearly.