Understanding Author's Purpose in Nonfiction

Active learning turns abstract concepts like author's purpose into something concrete kindergarteners can see and touch. When students physically sort, discuss, and act out writing choices, they build lasting understanding of how and why authors share information.

• Kindergarten
• English Language Arts
• 4 activities
• 15 min–20 min

Learning Objectives

1. Identify the author's primary purpose (to inform, explain, or describe) for a given nonfiction text.
2. Explain how specific details chosen by an author support their stated purpose.
3. Compare and contrast the types of details an author might include when their purpose is to inform versus to describe.
4. Classify sentences from a text based on whether they primarily inform, explain, or describe.

Think-Pair-Share

⏱ 15 min·Pairs

Think-Pair-Share: Why Did the Author Write This?

After a nonfiction read-aloud, partners choose from three purpose cards: to inform, to explain, or to describe. They discuss which best fits the book and give one reason for their choice. Each pair shares before the class votes on the most common response and discusses any disagreements.

Prepare & details

Analyze the author's primary reason for writing a specific informational book.

Facilitation Tip: During Think-Pair-Share, provide sentence stems like 'The author wrote this to...' to support language development.

Setup: Standard classroom seating; students turn to a neighbor

Materials: Discussion prompt (projected or printed), Optional: recording sheet for pairs

• Understand
• Apply
• Analyze
• Self-Awareness
• Relationship Skills

Chalk Talk

⏱ 20 min·Pairs

Sorting Activity: Purpose Piles

Collect short nonfiction excerpts or picture books across a range of purposes. Students sort them into three labeled piles: inform, explain, describe, and justify each placement to a partner. After sorting, discuss any books that seemed to fit more than one category and what that reveals about how authors blend purposes.

Prepare & details

Explain how an author's purpose influences the details they include.

Facilitation Tip: For Purpose Piles, use picture books with clear covers and table of contents to highlight purpose clues before sorting.

Setup: Large papers on tables or walls, space to circulate

Materials: Large paper with central prompt, Markers (one per student), Quiet music (optional)

• Understand
• Analyze
• Evaluate
• Self-Awareness
• Self-Management

Role Play

⏱ 20 min·Whole Class

Role Play: Meet the Author

The teacher takes on the role of a nonfiction author and students ask questions about why they chose their topic and what they wanted readers to learn. The teacher responds in character, modeling how author choices link to purpose. Students then pair up and role-play author interviews about simpler topics they know well.

Prepare & details

Predict what kind of information an author would include if their purpose was to describe something.

Facilitation Tip: During Meet the Author, assign roles that require students to use first-person language to describe the author's choices.

Setup: Open space or rearranged desks for scenario staging

Materials: Character cards with backstory and goals, Scenario briefing sheet

• Apply
• Analyze
• Evaluate
• Social Awareness
• Self-Awareness

Gallery Walk

⏱ 20 min·Small Groups

Gallery Walk: Purpose Clues

Post pages from three different nonfiction books at stations around the room. Students rotate and write or draw a clue that tells them the author's purpose for that text. Debrief by comparing what clues students found and discussing how those clues point to a particular purpose.

Prepare & details

Analyze the author's primary reason for writing a specific informational book.

Facilitation Tip: In Purpose Clues, post sentence starters near each poster that match the purpose categories to scaffold observation and discussion.

Setup: Wall space or tables arranged around room perimeter

Materials: Large paper/poster boards, Markers, Sticky notes for feedback

• Understand
• Apply
• Analyze
• Create
• Relationship Skills
• Social Awareness

Teaching This Topic

Start with short, accessible texts and model the thinking process aloud. Use think-alouds to show how you look at the title, pictures, and text features to decide an author's purpose. Keep activities playful but structured, with clear routines for turn-taking and sharing. Avoid overcomplicating the three purposes; stick to inform, explain, and describe to build confidence before introducing more complex frameworks.

What to Expect

Successful learning shows when students can explain an author's purpose using specific text clues, such as facts in an informational book or sensory details in a descriptive one. They should also begin to recognize that purpose guides both what is included and how it is presented.

Watch Out for These Misconceptions

Common Misconception

During Think-Pair-Share, watch for the idea that all nonfiction books have the same purpose. Redirect by having students compare two books side by side and point to specific features that show different purposes.

What to Teach Instead

During Purpose Piles, provide two contrasting books and ask students to describe how the structure of each book (facts versus sensory details) matches its purpose. Have them verbally explain their sorting choice to a partner.

Common Misconception

During Purpose Piles, watch for students who believe the author's purpose is labeled in the book. Redirect by removing all text from the books and asking students to infer purpose only from pictures and features.

What to Teach Instead

During Think-Pair-Share, model your internal thinking aloud by saying, 'I see lots of labeled pictures here, so I think the author is explaining how something works.' Ask students to share their own reasoning without pointing to a label.

Common Misconception

During Role Play: Meet the Author, watch for students who think storytelling elements mean a book cannot be informational. Redirect by having students act out both an informational and a narrative nonfiction version of the same topic.

What to Teach Instead

During Purpose Clues, include narrative nonfiction books in the gallery walk and ask students to identify facts embedded in the storytelling. Discuss how facts remain facts even when presented with engaging details.

Assessment Ideas

Exit Ticket

After Purpose Piles, provide each student with a short nonfiction paragraph. Ask them to circle one word that tells the author's purpose (inform, explain, describe) and draw one detail the author included to support that purpose.

Discussion Prompt

During Gallery Walk, present two simple nonfiction texts on the same topic, one written to inform and one to describe. Ask students to identify which book tells facts and which helps them imagine what it's like, using text features and language as evidence.

Quick Check

After Think-Pair-Share, hold up picture cards of different objects or animals. Ask students to tell you one fact they would include if writing to inform, and one detail they would use if writing to describe.

Extensions & Scaffolding

• Challenge: Ask students to find a fourth purpose (persuade) in a short advertisement or opinion book, and explain how they know.
• Scaffolding: Provide sentence frames for students to complete during partner discussions, such as 'I think the author wrote this to _____ because I see _____.'
• Deeper exploration: Compare two books on the same topic, one informational and one narrative nonfiction, and have students identify how storytelling helps convey facts.

Key Vocabulary

Author's Purpose	The main reason an author decides to write a book or text. For nonfiction, this is often to inform, explain, or describe.
Inform	To give facts or information about a topic. Authors who inform want readers to learn something new.
Explain	To show how something works or how to do something. Authors who explain often use steps or sequences.
Describe	To paint a picture with words, using sensory details. Authors who describe help readers imagine what something is like.