In informational text, what is the best way to determine the central idea?

• A. Read the title, introduction, and conclusion; identify repeated topics and main points.
• B. Count the number of paragraphs.
• C. Skim the last sentence of every paragraph.
• D. Look for adjectives used most often in the text.

Answer: (A)

When you’re figuring out the central idea, you’re looking for the main point the author wants you to take away from the text. The strongest way to find that is to start with the title, the introduction, and the conclusion, and notice what ideas come up again and again. The title gives you the topic, the introduction states the purpose or claim, and the conclusion often restates the main idea. Seeing the same topics and main points echoed through these parts helps you see the big message the author is building toward.

This approach works well because the central idea is not just a detail, but the one idea that ties all the information together. The repeated topics show what the text is really about, and the main points are the reasons or evidence the author uses to support that idea.

Other strategies don’t point to the main message as reliably. Simply counting paragraphs doesn’t tell you what the text is about. Skimming the last sentence of every paragraph can give you a sense of endings, but it may miss the overall argument. Focusing on adjectives tells you about tone or description, not the core claim the author is making.

So, after reading the title, introduction, and conclusion, and noting the repeated ideas, try to state the central idea in one sentence. If that sentence fits with what you read and matches the title, you’ve identified the main point.