Main Idea and Details - PowerPoint PPT Presentation

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Main Idea and Details

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Main Idea and Details Lesson 18 The main idea is the most important idea in a passage or selection. Details are facts, reasons, or examples that tell more about the ... – PowerPoint PPT presentation

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Title: Main Idea and Details


1
Main Idea and Details
  • Lesson 18

2
  • The main idea is the most important idea in a
    passage or selection.
  • Details are facts, reasons, or examples that tell
    more about the main idea.
  • The main idea may be stated in a topic sentence.
  • A topic sentence may appear at the beginning, in
    the middle, or at the end of a paragraph.

3
  • One way to find the main idea is to think about
    how all the sentences in a paragraph or passage
    are alike. Look for a sentence that states what
    all the details have in common. This sentence
    will usually be the first or last sentence in a
    paragraph or section of text.

4
  • We will read the following paragraph and find
    the main idea. Find three supporting details that
    support the main idea. Look for a topic sentence
    that will help identify the main idea.

Ready, Set, Go!!!
5
  • Silk has been an important material for many
    centuries. Hundreds of years ago in China, silk
    was valuable that it was used as money. Farmers
    used silk to pay their taxes. The government
    gave workers silk instead of money. People also
    used silk to trade with foreign countries for
    other items. The Chinese kept the process of
    producing silk a secret for almost 3,000 years.
  • What is the topic sentence in this paragraph?
    Does this tell us the main idea?
  • Main Idea
  • Silk has been a highly prized material for many
    centuries.
  • What are three details that support the main
    idea?
  • Supporting Details
  • Chinese farmers used silk to pay their taxes.
  • The Chinese government paid workers with silk.
  • China kept the process of producing silk a
    secret.
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