FlashKeepers

Reading · K-12

Main Idea and Supporting Details

How to identify a passage's main idea versus supporting details, with short example scenarios. Front: the skill or example scenario. Back: how to identify the answer.

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What is the main idea of a passage?
The central message or most important point the author wants to communicate
What are supporting details?
Facts, examples, and information that explain or prove the main idea
What question should you ask to find the main idea?
What is this passage mostly about?
What question helps identify supporting details?
What information supports, explains, or proves the main idea?
Where do main ideas typically appear in a passage?
Often at the beginning or end, though they can appear anywhere
How do supporting details relate to the main idea?
They provide evidence, examples, and explanations that back it up
Can a passage have more than one main idea?
Usually one main idea per paragraph or passage
How do you know something is a supporting detail and not a main idea?
It explains, proves, or gives an example of something else, rather than stating the overall topic
Passage: 'Dogs need exercise daily. They also need fresh water and food. Dogs make great pets.' Which is the main idea?
Dogs make great pets (or dogs need proper care)
In that same passage, what are two supporting details?
Dogs need exercise daily; dogs need fresh water and food
Is the main idea always directly stated in the text?
No, sometimes you have to infer or figure it out from the details
What is it called when the main idea is not directly stated?
An implied main idea or inferred main idea
Can the title of a passage help you find the main idea?
Yes, titles often hint at or directly state the main idea
Passage: 'Polar bears have thick fur. They have a layer of fat under their skin. These features help them live in freezing cold.' What is the main idea?
Polar bears have special features that help them survive in cold places
In that same passage, is 'Polar bears have thick fur' the main idea or a detail?
A supporting detail

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