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Grade 4 English · Reading Comprehension

Main Idea

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Lesson

The main idea is what a paragraph is mostly about. The other sentences, called details, give more information that supports the main idea.

The main idea is often found in a topic sentence, which is usually near the beginning of the paragraph.

Practice questions

Think through each choice, then open the answer to see the reviewed explanation.

  1. 1. The main idea of a paragraph is...?

    1. the longest sentence
    2. what it is mostly about
    3. the first word
    Show the answer and explanation

    Answer: what it is mostly about

    The main idea is what the whole paragraph is mostly about.

  2. 2. Details in a paragraph usually...?

    1. support the main idea
    2. change the topic
    3. are always wrong
    Show the answer and explanation

    Answer: support the main idea

    Details give more information about the main idea.

  3. 3. Where can the main idea often be found?

    1. only at the end
    2. in a topic sentence
    3. never in the text
    Show the answer and explanation

    Answer: in a topic sentence

    A topic sentence often states the main idea.

Reviewed by

Brightwick Content Review Team

Checks curriculum references, age appropriateness, answer accuracy, and plain-language explanations before publication.

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