3RD GRADE ELA • WRITING

Introduce Your Topic, State Your Opinion, and List Your Reasons

Learn how to write a strong opinion piece by telling your reader what you think and why you think it!

Why Do We Write Opinions?

Have you ever told a friend that one book is better than another? Or that recess is the best part of the day? When you say what you think and explain why, you are sharing an opinion. People have been sharing opinions for a very, very long time!

Writing down your opinions is a special skill. It lets you tell lots of people what you think — even people who are far away. Let's look at how opinion writing grew over the years.

Long, Long Ago
People shared their opinions by talking to each other around campfires and in village meetings. There was no writing yet!
Ancient Greece
Greek thinkers learned to share opinions using reasons. A man named Aristotle taught people how to argue well by giving good reasons for their ideas.
Newspapers Begin
Hundreds of years later, newspapers let people write opinion pieces for everyone in town to read. These were called "editorials."
Today
Now we share opinions in books, online, and even in school! You are learning how to do this right now. When you write an opinion piece, you join a long history of people sharing their ideas with the world.

So here is the big question this lesson will answer: How do you write an opinion piece that introduces your topic, states your opinion clearly, and organizes your reasons? Let's find out!

The Key Ideas You Need to Know

Before you start writing, you need to understand four important parts of an opinion piece. Think of them as building blocks. Each block helps hold up your writing.

1

Topic Introduction

This is where you tell the reader what you are writing about. You name the book, subject, or idea so the reader knows right away.
2

Opinion Statement

This is a sentence that tells the reader what you think. It uses words like "I think," "I believe," or "the best" to show your point of view.
3

Reasons

Reasons explain why you think what you think. Good writers give two or three strong reasons so the reader can understand.
4

Organizational Structure

This is the order you put everything in. A list of reasons keeps your writing neat and easy to follow from start to finish.
Key Takeaway
Think of your opinion piece like a sandwich. The top bread is your topic and opinion. The yummy fillings in the middle are your reasons. The bottom bread is your ending that wraps it all up. Without any part, it's not a whole sandwich!

See the Structure of an Opinion Piece

Let's look at a picture that shows all the parts of an opinion piece. This diagram shows how the pieces fit together, from the very beginning to the very end.

Diagram showing the structure of an opinion piece with introduction, reasons, and conclusion stacked like building blocks

Look at the diagram above. Notice how the introduction comes first. That is where you tell the reader your topic and your opinion. Then you give your reasons one at a time, in order. Finally, the conclusion wraps everything up. This order is called your organizational structure.

Each reason gets its own paragraph. This makes it easy for the reader to follow along and understand why you feel the way you do.

How to Write Each Part

Now let's learn exactly what to write in each part of your opinion piece. We will go step by step!

Step 1 — Introduce Your Topic

Start by telling the reader what you are writing about. Name the book, subject, or idea. You can begin with a question or an interesting sentence to get the reader's attention.

Example: "Have you ever wondered what the best pet to have is?"

Step 2 — State Your Opinion

Right after introducing your topic, tell the reader what YOU think. Use strong opinion words. Here are some you can try:

Opinion Words to Use
I think · I believe · The best · In my opinion · I feel that · My favorite

Example: "I think dogs are the best pets for kids."

Step 3 — List Your Reasons

Now give your reasons! Each reason should explain why you have that opinion. Use linking words to connect your reasons in order.

Linking Words for Listing Reasons
First · Second · Third · Also · Another reason · Finally · Because

Example: "First, dogs are fun to play with. Second, dogs help you get exercise. Third, dogs are loyal friends."

Step 4 — Write a Conclusion

End your piece by restating your opinion in a new way. You can also say why this matters.

Example: "For all these reasons, I believe dogs are the best pets for kids. Every family should think about getting one!"

Key Takeaway
Writing an opinion piece is like giving directions. First, you tell someone where you are going (your topic and opinion). Then you tell them the steps to get there (your reasons in order). Finally, you say "we're here!" (your conclusion). If you skip steps, the person gets lost!

Putting All the Pieces Together

Let's look at another diagram that shows the whole process of planning your opinion piece. This is like a map that helps you plan before you write.

Flowchart showing the planning process for writing an opinion piece

Look at the plan above. You start by choosing a topic — something you care about. Then you decide what you think about it. Next, you brainstorm reasons. Try to think of at least two or three reasons. After that, you put your reasons in order — strongest first, or save the best for last. Finally, you write your opinion piece using all the parts we learned!

Here is a handy chart that shows what goes in each paragraph of your opinion piece:

ParagraphWhat Goes HereExample Sentence Starters
Paragraph 1Introduce topic + state your opinion"Have you ever…" / "I think that…"
Paragraph 2First reason + details"First, …" / "One reason is…"
Paragraph 3Second reason + details"Second, …" / "Also, …"
Paragraph 4Third reason + details"Finally, …" / "Another reason…"
Paragraph 5Conclusion — restate opinion"For all these reasons, …"

Worked Example: A Complete Opinion Piece

Let's write an opinion piece together! We will follow all the steps. Our topic is: What is the best season of the year?

A Complete Opinion Piece
1
Step 1 — Introduce the Topic and State the Opinion"Have you ever thought about which season is the best? There are four seasons — spring, summer, fall, and winter. Each one is special. But I believe summer is the best season of the year."
See how we introduced the topic (seasons) and then stated our opinion (summer is the best)? The reader now knows exactly what we think!
2
Step 2 — Give Reason 1"First, summer is the best because there is no school. Kids can sleep in, play outside all day, and have fun with their friends. It feels like freedom!"
We used the linking word "First" to show this is our first reason. We also added details to explain the reason.
3
Step 3 — Give Reason 2"Second, summer has the best weather. The sun shines bright and warm. You can swim in the pool, go to the beach, and eat ice cream outside."
We used "Second" to keep our reasons in order. Notice how the details paint a picture for the reader.
4
Step 4 — Give Reason 3"Finally, summer is when families take vacations. You might go camping, visit grandparents, or explore a new place. These are memories you will keep forever."
We used "Finally" for our last reason. This tells the reader we are almost done.
5
Step 5 — Write the Conclusion"For all these reasons, I think summer is the best season. It gives us free time, great weather, and family fun. I can't wait for summer to come again!"
The conclusion restates the opinion and wraps up the whole piece. Great job — we did it!

Helpful Tips and Common Mistakes

Now that you know how to write an opinion piece, let's look at what makes one really great — and what mistakes to watch out for.

✅ Great Opinion Writing❌ Common Mistakes
States the opinion clearly ("I think…")Forgets to say what the opinion is
Introduces the topic so the reader knows what it's aboutJumps right into reasons without naming the topic
Gives 2–3 strong reasons with detailsGives only one reason or no reasons at all
Uses linking words (First, Second, Finally)Lists reasons without any order
Ends with a conclusion that restates the opinionStops suddenly without a real ending
Key Takeaway
Think of linking words like traffic signs on a road. "First" is like a green light — you're starting! "Second" and "Also" are like "keep going" signs. "Finally" is like the "you have arrived" sign. Without these signs, the reader gets lost!

What Comes Next? Growing as a Writer

You are learning the basics of opinion writing right now. As you get older, you will learn to do even more! Here is a peek at how opinion writing grows with you.

What You Learn Now (3rd Grade)What Comes Later (4th–5th Grade)
State your opinionSupport your opinion with facts and evidence
List reasons in orderGroup related reasons together in paragraphs
Use simple linking words (First, Second)Use fancier transitions (Furthermore, In addition, Consequently)
Write a simple conclusionWrite a conclusion that connects to the introduction

The skills you are building today are the same ones that big kids, high school students, and even grown-ups use every day. Every time you write a letter, a review, or even a social media post sharing what you think, you are using opinion writing. So keep practicing — you are building something you will use for the rest of your life!

Practice Problems

Let's practice what you learned! Try each problem, then click "Show Answer" to check.

PROBLEM 1WHAT IS IT?
What is an opinion? How is it different from a fact?
PROBLEM 2FIND THE OPINION
Read this sentence: "I believe that recess should be longer because kids need more time to play and get exercise." What is the topic? What is the opinion? What is the reason?
PROBLEM 3FIX THE ORDER
These sentences are mixed up. Put them in the right order for an opinion piece: A) Second, cats are quiet and don't bark. B) For all these reasons, I think cats are the best pets. C) I think cats are the best pets to have. D) First, cats are easy to take care of.
PROBLEM 4WRITE YOUR OWN INTRODUCTION
Imagine your teacher asks you to write about: "What is the best thing to do on a rainy day?" Write an introduction paragraph that (1) introduces the topic and (2) states your opinion. Try to write 2–3 sentences!
PROBLEM 5PLAN A FULL PIECE
Your topic is: "What is the best book you have ever read?" On a piece of paper, plan a full opinion piece by writing: 1. The name of the book and your opinion about it. 2. Three reasons why you think it's the best. 3. A conclusion sentence. Then check your work with the answer below!

Let's Review Everything!

In this lesson, you learned how to write an opinion piece step by step. First, you introduce your topic so the reader knows what you are writing about. Then you state your opinion using words like "I think" or "I believe." After that, you create an organizational structure that lists your reasons — using linking words like "First," "Second," and "Finally" to keep everything in order. Each reason should have details that help explain your thinking. At the end, you write a conclusion that restates your opinion and wraps up your piece.

Remember: a great opinion piece is like a sandwich — it has a beginning (introduce topic + opinion), a middle (your reasons with details), and an end (your conclusion). When you follow this structure, your reader will always be able to understand what you think and why you think it. Now go write some amazing opinions! ✏️

Varsity Tutors • 3rd Grade English Language Arts • Opinion Writing: Introduce, State, and Organize