Explain the Author's Purpose in Three Ocean Texts
Written by Adi Ackerman, Head Teacher
"Explain the Author's Purpose in Three Ocean Texts" is written for 4th Grade (Ages 9-10). If your little one is a year younger but already steady on comprehension exercises, the page still works. You may just need to read the instructions out loud. And if they are older and author's purpose never quite stuck, this is a short review rather than busywork.


2 pages in this set
4th grade reading worksheet: find the purpose of a tides text, a letter asking for beach trash cans and a hermit crab story. Answer key included. Part of our author's purpose comprehension exercises collection.
How do I use this worksheet?
Begin with a shared reading or oral warm-up that highlights author's purpose so students hear and see the skill in context before practicing it independently. Have students work through it independently, since students at this age benefit more from productive struggle than from being walked through each step, especially for phonics-based tasks where saying an answer aloud first helps. After completing the worksheet, use one or two examples from the page to start a discussion: "Where else have you seen this in your reading?" These author's purpose worksheets are ideal for use during small group reading time, as independent center work, or as a homework activity.
What students will practice
- Students will read a text about tides, a letter asking for beach trash cans and a story about Hank the hermit crab.
- Students will circle each text's purpose and copy a detail that proves it.
- Students will tell how the tides text would change if its author wanted to persuade.
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FAQ
How do I use this author's purpose worksheet?
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Begin with a shared reading or oral warm-up that highlights author's purpose so students hear and see the skill in context before practicing it independently. Have students work through it independently, since students at this age benefit more from productive struggle than from being walked through each step, especially for phonics-based tasks where saying an answer aloud first helps. After completing the worksheet, use one or two examples from the page to start a discussion: "Where else have you seen this in your reading?" These author's purpose worksheets are ideal for use during small group reading time, as independent center work, or as a homework activity.
What does this worksheet teach?
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Find the purpose of a tides text, a letter asking for beach trash cans and a hermit crab story. An author's purpose is why an author writes. Each text has a different purpose. The letter in Text B and the story in Text C are made up. The directions on the page read: Read Text A, Text B and Text C. Then, turn the page and answer the questions. On page 2: Circle each text's purpose. Copy a detail that shows it. Then, answer question 4. The answer key covers the questions on page 2.
Can I use this author's purpose worksheet for homeschool or classroom?
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Yes, both. We made it for 4th Grade comprehension exercises, and the page works the same whether it lands on a kitchen table or a center rotation. At home, most families go through it together and talk the answers out loud, and that talking is where most of the learning happens with author's purpose. In class it runs well as independent work while you pull a small group. Print one copy or thirty, whichever the day needs.
What does author's purpose mean?
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It is why an author wrote a text: to persuade readers to do or believe something, to inform them with facts or to entertain them with a story. In the space texts, the Mars text informs, the Space Night ad persuades and Pip the rover's story entertains.
How would a text change if its purpose changed?
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A text written to persuade asks readers to do something and uses words like should and best. One question asks how the tides text would change if its author wanted to persuade, and the answer is that it would ask readers to do something.
Why compare two texts on one topic?
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Two texts about one topic can have different purposes. On the school garden sheet, one text gives reasons a school should build a garden and the other explains how a garden grows, so children decide which one fits a report.
Is there an answer key for each worksheet?
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Yes. All 4 author's purpose sheets have an answer key, with sample details where answers will vary.
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Worksheet Details
| Grade | 4th Grade |
| Subject | Reading |
| Topic | Comprehension Exercises |
| Pages | 2 pages |
| Difficulty | Medium |
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