Main Idea and Details

The main idea is what a paragraph or passage is mostly about. Supporting details are facts, examples, or reasons that back up the main idea.

Strategy

Ask: "What is almost every sentence in this passage talking about?" That is the main idea. Ask: "What details did the author give to explain it?" Those are supporting details.

The main idea is often in the first or last sentence of a paragraph (topic sentence / concluding sentence), but not always — sometimes you must infer it.

Making Inferences

An inference is a conclusion you draw by combining what the text says with what you already know. Authors don't always state everything directly — good readers read between the lines.

Example

Text: "Maya grabbed her umbrella and rain boots before heading outside."
Inference: It is raining (or is expected to rain). The text never says "it is raining," but the details tell us.

Formula: Clue from text + Background knowledge = Inference

Context Clues

When you encounter an unfamiliar word, look at the words and sentences around it for hints about its meaning.

TypeWhat to look forExample
DefinitionWord is defined nearby"The tundra, or frozen treeless plain, …"
SynonymSimilar word nearby"The child was timid — shy and afraid"
AntonymOpposite clue"Unlike his calm brother, Jake was frantic"
ExampleSpecific examples given"Reptiles, such as snakes and lizards, …"

Text Structure

Authors organize writing in predictable patterns. Recognizing the structure helps you understand the content.

StructureSignal Words
Sequence/Chronologicalfirst, next, then, finally, after
Compare & Contrastboth, similarly, however, unlike, on the other hand
Cause & Effectbecause, so, therefore, as a result, since
Problem & Solutionthe problem is, one solution, resolved by
Descriptionfor example, consists of, appears to be

Quick Quiz

Test what you just learned. Choose the best answer for each question.