Main Idea Graphic Organizer – Details, Boxes and Bullets

All 13 organizers

Main idea and details 6

Details first: three details, then the main idea Three detail boxes across the top and a box under them headed So the main idea is.
Main idea graphic organizer: main idea and three details The main idea on three lines across the top and a ruled box for each of three details under it, like a table top on three legs.
One main idea and four details One wide main idea box over four detail boxes, two to a row. For a longer text, or a class that finds more than three details.
Sideways page: main idea and three details The same table turned sideways. The three detail boxes are wider, so a full sentence fits on fewer lines.
Topic, main idea and three details with page numbers Four boxes down the page, with a Topic line at the top and a Page line in each detail box, for readers who are asked to point to the place in the text.
Two to a page: main idea and three details Two half sheets with a cut line between them, each with two main idea lines and three short detail boxes. For one paragraph or a short article.

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Boxes and bullets 3

Boxes and bullets graphic organizer: one box, three bullets Each bullet starts with a printed dot and has lines for one supporting detail.
Boxes and bullets with primary lines One box and three bullets on primary lines: a solid top line, a dotted midline and a solid baseline, for younger writers.
Boxes and bullets: two boxes, two bullets each For a text with two sections: a box for the main idea of each section and two bullets under each box.

By grade 3

Central idea graphic organizer: details and how they convey it Two lines for the central idea over a chart: a detail or quotation, its page, and how it conveys the idea.
Main idea graphic organizer, 2nd grade: the main topic and each paragraph Primary lines. A Main topic box over a box for each of three paragraphs, each asking what that paragraph is about.
Main idea graphic organizer, 3rd grade: how each detail supports it A main idea box, then three key details with a box beside each for how it supports the main idea.

Filled-in sample 1

Sample main idea organizer, filled in: a school garden The page-number sheet done for a made-up text about a school garden: each detail is one way the garden helps the school.

How this list was compiled: Our own layouts and wording; no publisher's organizer is copied. The grade wordings (main topic, main idea, central idea) were checked against the Common Core State Standards for English Language Arts, reading standards for informational text, read October 8, 2026. The sample is about a made-up text. Licence: own work

How it works

On this main idea graphic organizer the main idea is written once, across the top, and each detail under it has to support it. It is blank, so it fits any article, chapter or paragraph your class is reading.

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Tell the topic from the main idea

On these sheets the topic is a word or two and the main idea is a full sentence about it. In the filled-in sample the topic is the school garden and the main idea is that the garden helps the whole school. Each detail is a fact, example or reason that supports that sentence.

Boxes and bullets, and the central idea

A boxes and bullets graphic organizer puts the main idea in a box and each supporting detail on a bullet under it. The central idea graphic organizer is for 6th grade and up, where a reader has to say how each detail conveys the idea.

The Common Core standards say main topic through 2nd grade, main idea from 3rd grade and central idea from 6th.
When a text never states its main idea, use the details first sheet: collect three details, then ask what they all tell you about.

Questions and answers

What is a main idea graphic organizer?

A one-page frame with a place for the main idea of a text and places for the details that support it. With both on one page, a detail that does not support the idea is easy to spot.

Which main idea graphic organizer is for 2nd grade?

The 2nd grade sheet has primary lines, a Main topic box and a box for each of three paragraphs. The 2nd grade Common Core standard asks for the main topic of a text and the focus of its paragraphs.

Which main idea graphic organizer is for 3rd grade?

The 3rd grade sheet sets a box headed How it supports the main idea beside each key detail. The 3rd grade standard asks readers to recount the key details and explain how they support the main idea.

Is there a free printable main idea graphic organizer with lines?

Yes. Every sheet here prints free on Letter or A4 with no sign-up, and every one but the central idea chart has ruled lines to write on.