Standard #: LAFS.4.RI.1.2


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Determine the main idea of a text and explain how it is supported by key details; summarize the text.


General Information

Subject Area: English Language Arts
Grade: 4
Strand: Reading Standards for Informational Text
Idea: Level 2: Basic Application of Skills & Concepts
Date Adopted or Revised: 12/10
Date of Last Rating: 02/14
Status: State Board Approved
Assessed: Yes

Test Item Specifications

    Item Type(s): This benchmark may be assessed using: TM , EBSR , MS , ST , MC item(s)
    N/A

    Assessment Limits :
    Items may ask the student to determine the main idea and which details support the main idea. The main idea may be explicitly or implicitly stated. Items may ask the student to summarize the text.
    Text Types :
    The items assessing this standard may be used with one or more grade-appropriate informational texts. Texts may vary in complexity.
    Response Mechanisms :
    The Enhanced Item Descriptions section on page 3 provides a list of Response Mechanisms that may be used to assess this standard (excluding the Editing Task Choice item type). The Sample Response Mechanisms may include, but are not limited to, the examples below.
    Task Demand and Sample Response Mechanisms :

    Task Demand

    Determine a main idea of a text and explain how it is supported by key details.

    Sample Response Mechanisms

    Selectable Text

    • Requires the student to select the main idea of the text and then to select details from the text that support the main idea. 
    EBSR
    • Requires the student to select a main idea and then to select a detail or details from the text to support the main idea.
    Task Demand

    Provide a summary of the text. 

    Sample Response Mechanisms

    Selectable Text

    • Requires the student to select details from the text that are necessary for a summary. 
    Multiple Choice
    • Requires the student to identify the correct summary of the text. 
    Multiselect 
    • Requires the student to select multiple details from the text that are necessary for a summary. 
    Table Match
    • Requires the student to complete a table that creates a summary of a text.


Related Courses

Course Number1111 Course Title222
5010010: English for Speakers of Other Languages-Elementary (Specifically in versions: 2014 - 2015, 2015 - 2022 (course terminated))
5010020: Basic Skills in Reading-K-2 (Specifically in versions: 2014 - 2015, 2015 - 2021, 2021 and beyond (current))
5010030: Functional Basic Skills in Communications-Elementary (Specifically in versions: 2014 - 2015, 2015 and beyond (current))
5021060: Social Studies Grade 4 (Specifically in versions: 2014 - 2015, 2015 - 2022 (current), 2022 - 2023, 2023 and beyond)
5010045: Language Arts - Grade Four (Specifically in versions: 2014 - 2015, 2015 - 2022 (current), 2022 and beyond)
7710015: Access Language Arts - Grade 4 (Specifically in versions: 2014 - 2015, 2015 - 2018, 2018 - 2023 (current), 2023 and beyond)
7721015: Access Social Studies - Grade 4 (Specifically in versions: 2014 - 2015, 2015 - 2018, 2018 - 2023 (current), 2023 and beyond)
5011040: Library Skills/Information Literacy 4 (Specifically in versions: 2016 - 2022 (current), 2022 - 2023, 2023 and beyond)
5010104: Introduction to Debate Grade 4 (Specifically in versions: 2020 - 2022 (current), 2022 and beyond)


Related Access Points

Access Point Number Access Point Title
LAFS.4.RI.1.AP.2a Determine the main idea of an informational text.
LAFS.4.RI.1.AP.2b Identify supporting details of an informational text.
LAFS.4.RI.1.AP.2c Identify how ideas are organized to summarize the text.


Related Resources

Lesson Plans

Name Description
Railroads Change Florida: Henry Flagler in Florida

Henry Flagler was the founder of what became the Florida East Coast Railway. During the 1880s and 1890s, Henry Flagler expanded train lines through Jacksonville and down the East coast to Miami.

Henry Flagler began the Oversea Railway in 1906 to connect Miami to Key West. This ambitious and innovative project required money, earth-moving, man-hours, and miles of bridges. In this lesson students analyze a letter from Henry Flagler to learn about about Flagler and his contributions to Florida.

Florida in the Civil War: Risking Their Lives for Salt

With the seemingly limitless supply of salt available to us today, it is hard to imagine the hardship imposed by its lack. The Confederate army's meat supply was preserved with salt. With the Union blockade in place, the Confederate states turned to local sources for this important mineral. Salt production became a crucial endeavor for citizens of Florida. In this lesson students will compare Confederate and Union perspectives of the salt works using an illustration, a letter and an excerpt from a memoir.

Shall We Rescue the Amazon?

In this lesson, students will learn how humans are impacting the environment by reading various informational texts on the topic of saving the rain forests. Students will determine the meanings of unknown content-specific words and identify the main idea and supporting details within the text. They will write a summary of the text and respond to a prompt by writing an opinion essay.

Differentiating Instruction: Finding the Main Idea and Supporting Details in Informational Texts

This lesson is meant to be done in small groups at the students' individual reading levels. Students will read an informational text, will identify the main idea and supporting details, and record their findings on a graphic organizer. They will use the informational text and their graphic organizer to create a summary based on the text. The students will also answer questions based on the text. As a summative assessment for the lesson, the students will repeat this activity using a different informational text and will conduct the work alone, rather than in a group.

Wake up America!

Students explore the impact plants, animals, and humans are having on the environment - especially native plants and animals. This lesson has some interesting hands-on investigations to help students visualize the impact pollution is having on habitats. For the final project, students use their research to create a class book informing others about plants and animals that are endangered. Students also share ways people can help!

This lesson includes reading and writing activities that could be integrated into daily reading and language arts time blocks.

Holey Rusted Metal!

Students will conduct a guided inquiry lab involving the chemical change that creates rust. This lab is meant to be set up in one day and then observed over the course of 3 weeks.

Sound-Why can we hear it?

Using a main idea and detail organizer students will identify the different details about sound that relate to the main idea. Students will also be able to understand the concept of using an informational text to help them comprehend information about a science topic.

Properties of Matter: Mass, Shape, and Volume

Using the main idea and details graphic organizer, students will be able to distinguish between information given on the properties of matter – mass, shape, and volume. Students will also demonstrate their understanding of science concepts learned from reading an informational text passage on the properties of matter.

Magnets and Magnetism

This lesson demonstrates how students can apply the process of identifying main idea and supporting details to show how the force of magnetism works and how it can be useful in everyday life. The lesson provides an opportunity for students to interact with informational text and participate in a jigsaw learning activity.

Chemical Changes: Burning This lesson demonstrates how students can apply the process of identifying main idea and supporting details to show the different ways burning can chemically change matter. The students can identify these changes and discuss the details that support these changes, which will help them further understand how burning matter is considered a chemical change.
Close Reading Exemplar: "The Making of a Scientist"

The goal of this two to three day exemplar is to give students the opportunity to use the reading and writing habits they've been practicing on a regular basis to absorb deep lessons from Richard Feynman's recollections of interactions with his father. By reading and rereading the passage closely, and focusing their reading through a series of questions and discussion about the text, students will identify how and why Feynman started to look at the world through the eyes of a scientist. When combined with writing about the passage, students will discover how much they can learn from a memoir.

What's your Resource: Renewable or Nonrenewable?

Students will learn about renewable and nonrenewable resources and share their ideas by writing an expository paragraph.

Original Student Tutorial

Name Description
Uncovering the Main Idea

Learn how to identify explicit evidence and understand implicit meaning in a text

Sometimes the main idea likes to hide out in the texts that you read. Lenny Lizard will give you some pointers on how to uncover the main idea and use key details to support your answers.

By the end of this tutorial, you will be able to find the directly and indirectly stated main idea of a text. You will also learn how to identify and explain how key details support the main idea.

Student Center Activities

Name Description
Edcite: ELA Reading Grade 4-5

Students can practice answering reading comprehension questions with a text about online learning. With an account, students can save their work and send it to their teacher when complete.

Comprehension: Sum-thing Special

In this activity, students will summarize text using a graphic organizer.

Comprehension: Classic Classifying

In this activity, students will record key words/phrases in categories on a graphic organizer to generate main idea statements.

Comprehension: Distinguishing Details

In this activity, students will identify significant and minor details in text.

Comprehension: Expository Exploration

In this activity, students will identify the main topic, supporting details, and main idea(s) in text using a graphic organizer.

Comprehension: Main Idea Highlights

In this activity, students will identify details and main idea(s) in text by highlighting key words/phrases pertaining to the topic.

Comprehension: Main Idea Mania

In this activity, students will identify supporting details and main ideas in expository text and record them on a graphic organizer.

Comprehension: Simple Summary

In this activity, students will summarize text using a graphic organizer.

Comprehension: Sum Summary!

In this activity, students will summarize text (narrative and expository) using a graphic organizer.

Comprehension: Super Summary

In this activity, students will summarize expository text using a graphic organizer.

Comprehension: What's the Big Idea?

In this activity, students will identify supporting details and main ideas in expository text and record them on a graphic organizer.

Text Resource

Name Description
Green Invaders! This informational text resource is intended to support reading in the content area. This National Geographic Kids article explains how the invasion of non-native plants is threatening native food webs.

Unit/Lesson Sequence

Name Description
Weathering and Erosion: A Comprehension Instructional Sequence (CIS) Lesson Plan

This lesson plan follows the template for the Comprehension Instructional Sequence (CIS), developed to implement Florida Standards in English/Language Arts. This sequence scaffolds students as they read and response to complex content-area informational text. This particular lesson plan uses informational text about weathering and erosion, which ties into the 4th grade benchmark .

Student Resources

Original Student Tutorial

Name Description
Uncovering the Main Idea:

Learn how to identify explicit evidence and understand implicit meaning in a text

Sometimes the main idea likes to hide out in the texts that you read. Lenny Lizard will give you some pointers on how to uncover the main idea and use key details to support your answers.

By the end of this tutorial, you will be able to find the directly and indirectly stated main idea of a text. You will also learn how to identify and explain how key details support the main idea.

Student Center Activity

Name Description
Edcite: ELA Reading Grade 4-5:

Students can practice answering reading comprehension questions with a text about online learning. With an account, students can save their work and send it to their teacher when complete.



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