Main Idea
What is the main idea of a passage?
The main idea is what the whole passage is mostly about — the big, overall point.
What is a supporting detail?
A supporting detail is a fact or example that gives more information about the main idea.
Finish the sentence: 'This passage is mostly about...'
Accept any reasonable main idea statement from a passage read during the lesson.
Fill in the blank: 'The main idea of this passage is ___.'
Accept any correct main idea completion.
A passage talks about lions, tigers, and cheetahs all running fast. What is the main idea?
Big cats are known for being fast runners.
Name one detail from the Ocean Cleanup passage we read.
Possible answers: trash harms sea animals / scientists use nets and robots to clean trash / millions of pounds of trash end up in the ocean.
A passage is about recycling, reducing waste, and saving energy. What is the main idea?
There are different ways people can help protect the environment.
Use 'One detail that supports this is...' in a sentence about the axolotl passage.
One detail that supports this is that axolotls can regrow lost body parts like legs.
How is the main idea different from a detail?
The main idea is the big point of the whole passage. A detail is a small fact that supports it.
True or false: A supporting detail can be the main idea of the passage.
False. A detail supports the main idea but is not the main idea itself.
Can a picture or diagram have a main idea? Explain.
Yes! A picture or chart also has a main idea — it shows the most important information visually.
Use 'First... Next... Then...' to explain how to find the main idea.
First, read the whole passage. Next, ask what it is mostly about. Then, pick the idea that covers all the paragraphs.
Where can you often find the main idea in a paragraph?
The main idea is often in the first or last sentence of a paragraph.
A passage says dogs are loyal. Is that the main idea or a detail? Why?
That is a detail. It gives one reason to support the main idea that dogs make great pets.
Read this: 'Elephants are the largest land animals. They live in Africa and Asia. They use their trunks to drink and grab food.' What is the main idea?
Elephants are large animals with special features that help them survive.
How would you start a sentence to tell someone what a passage is about?
'This passage is mostly about...' or 'The main idea is...'
A passage says: 'Dogs make great pets. They are loyal, friendly, and easy to train.' What is the main idea?
Dogs make great pets.
How many supporting details should a strong paragraph usually have?
At least 2 to 3 supporting details to back up the main idea.
A student says the main idea of a story about a dog that saves a girl is 'the dog's name was Rex.' Is she right? Why or why not?
No. That is a detail. The main idea is that a brave dog saved a girl's life.
If you had to explain main idea and detail to a younger student using only 3 sentences, what would you say?
Accept any clear, student-generated explanation that correctly describes main idea and detail.