Worksheets › Main Idea (Grades 3-4)
Almost every wrong answer on a main-idea question is a TRUE detail from the text, which is why “read it again” rarely helps. These sheets separate the three things that get confused: the topic, the main idea, and a detail - each on an original passage written for this course.
In 1817, moving a ton of flour from Buffalo to New York City cost about a hundred dollars and took three weeks. The roads were mud. There was no railroad yet.
So New York State dug a ditch. The Erie Canal ran 363 miles across the state, four feet deep and forty feet wide. Workers cut it through forest and rock with hand tools and black powder. It took eight years.
When it opened in 1825, that same ton of flour cost about ten dollars to move, and took eight days. Farmers in Ohio could suddenly sell wheat in a city they would never see.
Towns grew up along the water. Rochester went from a village to a city in fifteen years. New York City passed Philadelphia to become the busiest port in the country, and stayed there.
The canal itself is mostly quiet now. But the map of where Americans live still shows where the water went.
What is the topic of this passage?
Which of these is the topic rather than the main idea?
Which statement is the main idea?
Which would be the best other title for this passage?
Which would be the best other title for this passage?
A honeybee finds a patch of flowers half a mile from the hive. She cannot draw a map. She cannot speak. Yet within minutes, dozens of other bees fly straight to those flowers.
She tells them by dancing. Back at the hive, the bee runs in a figure eight and waggles her body down the middle of it. The comb she dances on hangs straight up and down, and the angle of that waggle is her message: straight up means fly toward the sun, and a waggle tipped to the right means fly to the right of the sun. The longer she waggles, the farther away the flowers are.
The other bees crowd around her in the dark. They cannot see the dance. They feel it, and they listen to the buzz she makes as she shakes.
Scientists have watched this dance for almost a hundred years. It is one of the few times an animal tells another animal about a place that is nowhere in sight.
What is the main idea of this passage?
Which detail shows that the dance carries distance information, not just direction?
Behind our school there was a strip of dirt. Nothing grew there but weeds. People walked past it every day.
In March, Ms. Ruiz asked her class a question. What could we do with that corner? The class made a list. Then they picked one idea: a garden.
They pulled the weeds. They dug in old leaves to feed the soil. They planted beans, carrots, and sunflowers.
By June the sunflowers were taller than the second graders. The kitchen used the beans in lunch. Kids who never liked carrots ate carrots they had pulled up themselves.
The strip of dirt is still there. It just does something now.
Which detail supports the idea that growing food changed how kids felt about it?
These printables come straight from Lit Ladder - an adaptive K-12 reading program that gives your child a quick placement check, finds exactly where they are (not just their grade), and moves them up one skill at a time - from hearing the sounds in a spoken word to weighing evidence in a nonfiction text.
It's free during our beta, with no ads and no third-party trackers - kid logins are username-only and parent-managed.
Are these main idea worksheets free?
Yes - view, print, and share every sheet for free, with no account and no signup.
Do they include an answer key?
Every worksheet has a full answer key at the bottom of the page.
What grades are these main idea worksheets for?
They are designed for grades 3 and 4.
Does my child need to read the questions alone?
No. Print it and read the instructions aloud if that is what the sheet needs - at these ages the point is the skill, not whether they can decode the directions.
Can I get a different worksheet?
Yes - click “Generate a new sheet” and a fresh set of problems (with a matching answer key) is created instantly.