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Main Idea Sentences

Comprehension Lessons »

Explain Ask a student to define what the main idea of a paragraph is. Point out that identifying main ideas is important both when reading and writing. When writing, students should state the main idea of a paragraph in a topic sentence. Tell students that they will develop main idea sentences based on supporting details provided.

Guided Practice/Practice Write several sentences on the board that will serve as supporting details. For example, write: Skippy eats the best dog food. He gets plenty of exercise. Juanita takes Skippy to the vet when he gets sick. Ask students to read the sentences aloud and summarize them to find a main idea for the passage. (Possible answer: Juanita takes good care of her pet.) Then ask students to make up three detail sentences and exchange them with a partner. Each student writes a topic sentence that shows the main idea for the details.