1. Main Idea and Supporting Details

2. Main Idea Every story or paragraph has a main idea.
The main idea tells you what the story is about.
The main idea maybe the lesson learned or moral of a story.
The main idea is the most important part of a story or paragraph.

3. Supporting Details
The supporting details are the things that describe the main idea.
These supporting details make the main idea stronger.

4. Let’s think of the Main Idea as a House
A house has the roof that keeps everything covered and organized, but holds the house together?

5. The Support of the Main Idea (Roof)
The walls of the house are like the support of the paragraph.
The windows and doors are the details of the walls which are connected to the supporting details.

6. Main Idea
Topic
Supporting
Detail
Supporting
Detail
Supporting
Detail

7. Read the Passage and Choose the Main Idea
Niagara Falls is one of the most beautiful sights in North America. It is on the Niagara River halfway between Lake Ontario and Lake Erie. Niagara Falls is located on the American and Canadian border. The American Falls is 167 feet high. On the Canadian side, the Horseshoe Falls is 161 feet high.

8. Question
What is the main idea of the passage?
(Remember main idea is what the story is about).
Lets break it down, first we have to find the Supporting Details.

9. Niagara Falls is one of the most beautiful sights in North America
Niagara Falls is one of the most beautiful sights in North America. It is on the Niagara River halfway between Lake Ontario and Lake Erie. Niagara Falls is located on the American and Canadian border. The American Falls is 167 feet high. On the Canadian side, the Horseshoe Falls is 161 feet high.

10. So we ask ourselves, what is the detail telling me?
Main Idea
Niagara
Falls
Halfway between Lake Ontario and Lake Erie
Located on the American and Canadian border
American Falls is 167feet high.
On Canadian side, Horseshoe Falls is 161 feet high.
So we ask ourselves, what is the detail telling me?

11. Niagara Falls' location and height. (Implied Main Idea)
Answer
Main Idea:
Niagara Falls is one of the most beautiful sights in North America. (Right There Main Idea) OR
Niagara Falls' location and height. (Implied Main Idea)

12. Choose the Main Idea of this Passage
The Statue of Liberty is visited by thousands of people every year. The Statue of Liberty is a 151 foot statue of woman holding a book and a torch. It was a gift of friendship from the people of France. It has become the universal symbol for freedom.

13. Question
What is the main idea of this passage?
What was the passage about?

14. Choose the Main Idea of this Passage
The Statue of Liberty is visited by thousands of people every year. The Statue of Liberty is a 151 foot statue of woman holding a book and a torch. It was a gift of friendship from the people of France. It has become the universal symbol for freedom.

15. Answer
Main Idea:
The Statue of Liberty

16. Find the Supporting Details in this Passage
The Erie Canal changed the way people moved goods in the 1800’s. The 363 mile canal connected Albany, New York to Lake Erie in Buffalo for the first time. When the Canal opened in 1825, building supplies and goods could be transported quickly and cheaply across New York State. Canal boats pulled by mules carried people and supplies across New York.

17. Question Main Idea: Lake Erie changed the way people moved goods.
What are the supporting details of this passage?
(Remember supporting details describe the main idea).

18. Find the Supporting Details in this Passage
Main
Idea
What is supporting the main idea?
The Erie Canal changed the way people moved goods in the 1800’s. The 363 mile canal connected Albany, New York to Lake Erie in Buffalo for the first time. When the Canal opened in 1825, building supplies and goods could be transported quickly and cheaply across New York State. Canal boats pulled by mules carried people and supplies across New York.

19. Answer Supporting Details:
The 363 mile canal connected Albany and New York for the first time.
The canal boats pulled by mules carried people and supplies across New York State.
The canal made a way for goods to be transported cheaply and quickly.

20. Review Now let’s practice.
Our stories would not make sense if they did not include a main idea with supporting details.
You will need to be able to select the main idea and the supporting details from everything you read.
Now let’s practice.