📖 ReadingGrade 3Lesson 20
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Skim and Scan for Details

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Learning Objectives

  • 1Distinguish between skimming and scanning as reading strategies
  • 2Use skimming to get a quick overview of a text
  • 3Scan a passage to locate a specific detail or answer quickly
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Mini Lesson

Skimming and scanning are two reading strategies that help us read faster and smarter. We use them when we want specific information from a text without reading every single word. Skilled readers choose the right strategy for their purpose.

Skimming

  • Skimming means moving your eyes quickly over a text to get the general idea.
  • Read the title, headings, and first sentence of each paragraph.
  • Look at any bold words, bullet points, or diagrams.
  • Skimming tells you: What is this text about? Is it useful for what I need?
  • Use skimming before you decide whether to read a text in full.

Scanning

  • Scanning means searching for a specific piece of information.
  • Move your eyes quickly down the page, looking for a keyword or number.
  • When you spot your keyword, slow down and read that section carefully.
  • Scanning tells you: Where exactly is the answer to my question?
  • Use scanning when you already know what you are looking for.

When to Use Each Strategy

  • Skim: choosing a book at the library, previewing a chapter before reading.
  • Scan: finding a date in a history article, locating a name in an index.
  • Both: preview (skim) a passage, then scan for specific answers.
Skimming vs Scanning comparisonTwo-column diagram contrasting skimming (general overview) and scanning (specific detail).Skimming vs ScanningSkimmingGeneral ideaRead headingsFirst sentencesIs it useful?ScanningFind exact detailHunt keywordsNumbers/namesWhere is it?
When to use skimming and scanningExamples of when to skim (preview, choose a book) and when to scan (find a date, locate a name).When to Use Each StrategySKIM: Choose a book at librarySKIM: Preview a chapterSCAN: Find a date in historySCAN: Locate a name in an indexBOTH: Preview then answer Qs
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When scanning, say your keyword in your head. Let your eyes hunt for just that word or phrase — ignore everything else until you spot it.

Vocabulary
Skim
To read quickly to get the main ideae.g. I skim the page to see what it is about.
Scan
To search a text for one specific detaile.g. I scan the page to find a date.
Detail
A small piece of information in a texte.g. A name is one detail in a story.
Main idea
The most important idea in the texte.g. The main idea of this article is dogs need exercise.
Keyword
An important word that helps you find what you neede.g. I scan for the keyword "rainforest".
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← Lesson 19: Read Maps, Charts, and DiagramsLesson 21: Use Captions and Headings →