Main Idea Line Answer Key

Students read a structured paragraph about recycling and determine which sentence best expresses the passage’s main idea. By numbering and evaluating each line, they decide which statement functions as the topic sentence. This exercise trains students to identify focus and unity within paragraphs, improving comprehension and writing clarity. It also reinforces environmental awareness while strengthening close-reading and reasoning skills.

Curriculum Matched Skills

English Language Arts – Identifying Topic Sentences and Main Ideas

English Language Arts – Paragraph Comprehension and Analysis

English Language Arts – Determining Author’s Central Message

English Language Arts – Environmental Literacy through Informational Reading

This worksheet is part of our Central Ideas of Text collection.