Finding the Main Idea
Learn to identify the main idea of a paragraph or passage—the central point that everything else supports—a critical skill for paragraph comprehension.
What Is the Main Idea?
The main idea is the most important point in a passage. It's the central message that the author is trying to communicate, and all the supporting details exist to back it up. Think of it like the frame of a house—the main idea is the skeleton, and the details are the walls and decorations.
On the ASVAB Paragraph Comprehension section, questions often ask you to identify the main idea, either directly ("What is the main idea?") or indirectly ("Which title best fits this passage?" or "What is the author primarily concerned with?"). The main idea is usually stated in a topic sentence, often found at the beginning or end of a paragraph, though sometimes you have to infer it from the supporting details.
The key to finding the main idea is asking: "What is the author really trying to say? If I remove all the details, what's left?" That's your main idea. Everything else is just evidence or examples supporting that core point.
Main Idea
The central point or most important message that a passage communicates; the idea that all other details support