Selecting and Introducing a Topic
Selecting and Introducing a Topic
When we write informational pieces, we teach the reader about something real. We share facts, not made-up stories. A good informational piece starts by picking a topic and telling the reader what the writing will be about.
This is called selecting and introducing a topic. First, you choose a topic. Then, you write an opening sentence or two that names the topic clearly.
A strong beginning helps the reader know, right away, what they are going to learn.
1. What is a topic?
A topic is the subject of your writing. It is what your whole piece is about.
- If you write about frogs, your topic is frogs.
- If you write about fire trucks, your topic is fire trucks.
- If you write about apples, your topic is apples.
In informational writing, the best topics are real and can be explained with facts.
2. How do I choose a good topic?
A good topic for 2nd grade is:
- real — something true
- clear — easy to understand
- small enough — not too big
Some topics are too big. Big topics can be hard to explain in one short piece of writing.
- Too big: animals
- Better: pandas
- Too big: weather
- Better: rainstorms
- Too big: food
- Better: carrots
When your topic is smaller, it is easier to stay on one idea.
3. Questions to help you pick a topic
You can ask yourself:
- Is this topic real?
- Can I tell facts about it?
- Is this topic small enough?
- Will my reader know what I am writing about?
If the answer is yes, your topic may be a good one.
4. What does it mean to introduce a topic?
To introduce a topic means to tell the reader what the topic is at the beginning of your writing.
Your introduction is the start of your piece. It can be one sentence or two short sentences. It should name the topic clearly.
A good introduction helps the reader think, “I know what this piece is about.”
5. What makes a strong introduction?
A strong introduction:
- comes at the beginning
- names the topic
- sounds clear
- gets the reader ready to learn facts
Here are some simple ways to start:
- I want to tell you about...
- This piece is about...
- Have you ever wondered about...?
- ... is an interesting topic to learn about.
You do not have to use these exact sentence starters every time, but they can help.
6. Keep the introduction clear
Your first sentence should match the facts in the rest of your writing.
If your piece is about how bees help flowers, do not start by talking about your favorite bug. Start with bees and flowers.
If your piece is about penguins, do not begin with many different animals. Tell the reader right away that the piece is about penguins.
7. Examples of weak and strong topics
Let’s look at topics that are too big and topics that are just right.
- Big topic: pets
Better topic: hamsters - Big topic: trees
Better topic: oak trees - Big topic: sports
Better topic: soccer - Big topic: bugs
Better topic: butterflies
The better topics are easier to explain because they are more specific.
8. Worked Example 1: Picking a topic
Writing idea: animals
This topic is too big. There are many kinds of animals. It would be hard to explain all of them in one short piece.
Make it smaller: sea turtles
Now the topic is clearer. You can write facts about where sea turtles live, what they eat, and how they move.
Possible introduction: Sea turtles are amazing animals that live in the ocean. This piece will tell facts about sea turtles.
Why it works: It names the topic right away. The reader knows the writing is about sea turtles.
Worked Example 2: Fixing a weak introduction
Topic: apples
Weak introduction: I like lots of things at the farm.
This is weak because it does not clearly say the piece is about apples.
Stronger introduction: Apples are fruits that grow on trees. I want to tell you about apples.
Why it works: It tells the topic clearly. The reader knows the piece will teach facts about apples.
Worked Example 3: Matching the topic and introduction
Topic: fire trucks
Bad match: Many people like to drive cars.
This beginning is about cars, not fire trucks. The topic and the introduction do not match well.
Better match: Fire trucks are special trucks that help firefighters do their jobs. This piece explains what fire trucks do.
Why it works: The introduction matches the topic. It gets the reader ready to learn facts about fire trucks.
Worked Example 4: From big idea to clear introduction
Big idea: weather
“Weather” is too broad for a short piece.
Smaller topic: snow
Now the writer can stay focused on one thing.
Possible introduction: Snow falls when the weather is very cold. In this piece, you will learn facts about snow.
Why it works: It names the topic and tells the reader what the writing will explain.
9. Steps for selecting and introducing a topic
- Think of something real you know about.
- Make sure the topic is not too big.
- Pick one clear topic.
- Write a first sentence that names the topic.
- Add a second sentence, if needed, to tell what the reader will learn.
10. Helpful sentence frames
You can use these to get started:
- I want to tell you about _____.
- This piece is about _____.
- _____ is important because _____.
- You will learn about _____.
- _____ is an interesting thing to learn about.
11. Check your own writing
After you write your introduction, ask:
- Did I name my topic?
- Did I do it at the beginning?
- Is my topic clear?
- Is my topic small enough?
- Does my introduction match the facts I will write next?
If you can answer yes, your beginning is probably strong.
12. Quick practice ideas
Try turning each big topic into a smaller one:
- animals → dogs
- plants → sunflowers
- school → the library
- insects → ants
Now try writing an introduction for one of them.
Example: The library is a quiet place in school. This piece will tell you about the library.
Summary
When you write an informational piece, first choose a topic that is real, clear, and not too big. Then introduce it at the beginning so your reader knows what they will learn about.
A strong introduction names the topic clearly and matches the facts in the rest of the writing. When you select a small, clear topic and introduce it well, your writing is easier to understand.
Put what you read to the test
You've worked through Selecting and Introducing a Topic. Try answering a few questions to see what stuck — and what might deserve a quick reread before you move on.