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3 - main idea ppt

  1. 1. Main Idea and Supporting Details Third Grade CCSS.ELA-LITERACY.RI.3.2 Determine the main idea of a text; recount the key details and explain how they support the main idea. Notes URL PPT URL
  2. 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. 3. Supporting Details • The supporting details are the things that describe the main idea. • These supporting details make the main idea stronger.
  4. 4. 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.
  5. 5. Question What is the main idea of the passage? Remember main idea is what the story is about.
  6. 6. Answer •Main Idea: Niagara Falls is one of the most beautiful sights in North America.
  7. 7. 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.
  8. 8. Question • What is the main idea of this passage? • What was the passage about?
  9. 9. Answer Main Idea: The Statue of Liberty
  10. 10. 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.
  11. 11. 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.
  12. 12. Answer • Supporting Details: • 1-The 363 mile canal connected Albany and New York for the first time. • 2-The canal boats pulled by mules carried people and supplies across New York State. • 3-The canal made a way for goods to be transported cheaply and quickly.
  13. 13. Review 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.

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