Expository Writing Lesson for Kids: Definition & Examples

Instructor: Lindsey Hays

Lindsey has taught Elementary Education, Spanish immersion, and ESL. She has a MS in Elementary Education with a BA in Spanish.

Have you ever wanted to be a teacher? You can get practice teaching others when you do expository writing! In this lesson, we'll look at the structure of expository writing as well as some examples.

Becoming a Teacher

Everyone is an expert at something. Think of your favorite things. Do you like to play soccer? Do you have a dog you take care of? Do you sing or do art? In this lesson, we'll invite you to become the teacher! Think of something you're really good at or something you enjoy. Keep it in mind as you read through this lesson on expository writing.

Structure of Expository Writing

In order to understand expository writing, you'll have to think like a teacher. Expository writing is when you want to inform others or give them facts about something. In fact, we also call it informational writing.

Think like a teacher when you inform or explain in expository writing!
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Topic Sentence

First, you will need to start out with a topic sentence. A topic sentence tells what the piece of writing will be about. It is like an umbrella that tells the main or general idea. Let's look at these examples of topic sentences.

  • Pollution is a growing problem in our world.
  • It is important to eat healthy foods.
  • Football is a high-energy sport that many people enjoy.

Notice how they are broad sentences about what the entire paragraph or paper will be about. Don't give too much away in the opening line!

Body

The body of your paragraph or paper will need supporting sentences, details that explain your main topic. Look at these examples of supporting sentences for the topic sentence examples above.

  • 80% of marine pollution comes from humans on land through trash and chemicals. Levels of air pollution, from factories and cars, are higher than they have ever been. Our health and environment is at a greater risk than ever before because of the rise in pollution in cities around the world.
  • Doctors recommend balanced diets that contain fruits, vegetables, grains, dairy, and protein. Eating healthy foods correlates to lower risks of health problems, such as diabetes and heart disease. Remember to pair eating healthy with exercise in order to truly keep your body as strong and healthy as it can be!
  • Football is an impact sport, in which the players tackle each other over the ball. It is a competitive team sport, so people enjoy rallying around their teams and traditions. Football provides a family-friendly atmosphere, as people come together with tailgating, good food, and parties.

Notice how all of our supporting details in the sentences above are facts about our main topics. We do not include opinions in expository writing.

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