https://www.khanacademy.org/ela/4th-grade-reading-and-vocab/xe0e52cf20ce2546d:key-ideas-and-details-4/xe0e52cf20ce2546d:identifying-main-ideas-and-summarizing-4/a/identifying-the-main-idea-of-a-text-4th 2026-05-21T11:40:40.471298507Z Identifying the main idea of a text | Guided practice Learn how to find a text's main idea. article https://www.khanacademy.org/ela/4th-grade-reading-and-vocab/xe0e52cf20ce2546d:key-ideas-and-details-4/xe0e52cf20ce2546d:identifying-main-ideas-and-summarizing-4/v/g4-key-details 2025-08-04T13:54:33.933268801Z Supporting a main idea with key details What's the big idea? How do authors support main ideas with key details in informational texts? David has all the details! David Rheinstrom video https://cdn.kastatic.org/ka_thumbnails_cache/5b247c55-8ac0-44bf-990e-0a656609428c_1280_720_base.png Supporting a main idea with key details What's the big idea? How do authors support main ideas with key details in informational texts? David has all the details! https://cdn.kastatic.org/ka-youtube-converted/lGJw0QS1Y9w.mp4/lGJw0QS1Y9w.mp4 238 Identifying main ideas and summarizing https://www.khanacademy.org/ela/cc-3rd-reading-vocab/xaf0c1b5d7010608e:cc-3rd-pets/xaf0c1b5d7010608e:close-reading/v/what-is-a-summary-reading-nonfiction-khan-academy 2025-06-24T18:30:47.167909514Z Summarizing informational text Summaries are short retellings of texts that contain only the most important ideas and details. Let's learn how to summarize an informational text! video https://cdn.kastatic.org/googleusercontent/r0vCMyxcxJJuN98RIF8wM0EiUUnjKaXaa46O-GXcrSrP7XgmVzea2eG98kPjFiznPNz2B0dl12syJWhXvUhlYGqIsg Summarizing informational text Summaries are short retellings of texts that contain only the most important ideas and details. Let's learn how to summarize an informational text! https://cdn.kastatic.org/ka-youtube-converted/as7xe8UQEr4.mp4/as7xe8UQEr4.mp4 162 Identifying main ideas and summarizing https://www.khanacademy.org/ela/4th-grade-reading-and-vocab/xe0e52cf20ce2546d:key-ideas-and-details-4/xe0e52cf20ce2546d:identifying-main-ideas-and-summarizing-4/e/main-idea-and-summary-4 2026-04-07T23:36:17.218592739Z Main idea and summary Practice Heather M. Meston exercise