Supporting Details | Assessment Review
Students will review how supporting details help explain the main idea in a story or informational text. Through read-alouds, guided discussion, and practice sorting details, students will identify details that prove, explain, or tell more about the main idea.
| Term | Definition |
|---|---|
| main idea | What a text is mostly about. |
| supporting details | Information in the text that tells more about the main idea. |
| detail | A small piece of information about a topic or story. |
| prove | To show that something is true or correct. |
Ask students what a main idea is and write a simple class definition on the board. Show two short examples and have students say which sentence tells what the passage is mostly about.
Respond orally, share examples, and point to the sentence that names the main idea.
Model with a short familiar text or class topic. Think aloud to show how details give more information about the main idea. Underline or highlight details that fit and cross out one detail that does not fit.
Listen, watch the model, and help decide whether each detail matches the main idea.
Read a short passage aloud. Pause to ask simple questions: What is this mostly about? Which words tell us more? Record student answers in a two-column chart labeled Main Idea and Supporting Details.
Answer questions, repeat key details, and help sort information into the chart.
Give pairs of students sentence strips or cards. Ask them to place each card under the correct main idea or in a not-related pile. Circulate and support as needed.
Work with a partner to read, discuss, and sort the detail cards. Explain why a card belongs or does not belong.
Provide a short new passage or picture-supported text. Ask students to circle or highlight two supporting details and draw a line to the main idea sentence.
Complete the task independently and use the text to choose details that match the main idea.
Review answers as a class. Invite a few students to explain how they knew a detail supported the main idea.
Share responses and listen to classmates' thinking.
End by having students finish the sentence: 'Supporting details are important because they ____.' Review the anchor chart and remind students that good readers use details to understand the main idea.