(1)The main idea is the central point or thought the author wants to communicate to readers. The main idea answers the question, “What does the author want me to know about the topic?” or “What is the author teaching me?” Often the author states the main idea in a single sentence.
(2) It is easy to identify a main idea that is directly expressed in the text. Main ideas are often found at the beginning of paragraphs. The first sentence often explains the subject being discussed in the passage. Main ideas are also found in the concluding sentences of a paragraph.