In this guide
Paragraphs are the bridge between writing sentences and writing essays. A child who can write a solid paragraph can write an essay; an essay is just a few strong paragraphs that work together.
Yet many kids in Grades 4–6 write "paragraphs" that are really a list of loosely related sentences. Here's how to teach the structure clearly.
What makes a paragraph?
A paragraph is a group of sentences about one main idea. A good paragraph has three parts:
- Topic sentence: tells the reader what the paragraph is about
- Supporting details: two to four sentences that explain, describe or give examples
- Closing sentence: wraps up the idea or leads to the next paragraph
The hamburger method
Many teachers use a hamburger to make the structure visual:
- Top bun: the topic sentence
- Fillings: the supporting details (lettuce, tomato, cheese, burger)
- Bottom bun: the closing sentence
The buns hold everything together. Without them, the fillings fall out. That's a good way to explain why topic and closing sentences matter.
Draw a hamburger on paper and have your child write each sentence in the right layer. It sounds simple, but it makes the parts easy to see.
Step 1: Write a clear topic sentence
The topic sentence states the main idea. It should be specific enough that the reader knows what's coming.
Too vague: Dogs are animals.
Clear: Dogs make great pets for busy families.
See our full guide on writing strong topic sentences.
Step 2: Add supporting details
Each detail should answer the question "How do you know?" or "Can you tell me more?" about the topic sentence. Good details are:
- Reasons: because they're loyal and easy to train
- Examples: my neighbour's dog greets her kids at the bus every day
- Facts: many dogs can learn simple commands in a few weeks
- Descriptions: a wagging tail and muddy paws at the door
Two or three strong details are better than six weak ones.
Step 3: Connect the details
Without connecting words, details feel like a list. Add transition words such as first, also, for example, in addition and most importantly.
Step 4: Close the paragraph
The closing sentence restates the main idea in new words or adds a final thought.
For a family that wants a loyal friend, a dog is hard to beat.
A complete example
Dogs make great pets for busy families. First, they are loyal and love being part of everyday routines, like walks after school. They are also easy to train, and many can learn simple commands in a few weeks. Most importantly, a dog gives kids a reason to get outside and play every day. For a family that wants a loyal friend, a dog is hard to beat.
Topic sentence, three connected details, closing sentence. That's the whole recipe.
Common paragraph problems
Two ideas in one paragraph. If the paragraph starts about dogs and ends about the trip to the zoo, it needs to be split. One paragraph, one idea.
No topic sentence. Kids often jump straight into details. Ask: "If I only read your first sentence, would I know what this paragraph is about?"
Details that don't support the main idea. Ask your child to read each detail and check: does this help prove or explain my topic sentence? If not, cut it or move it.
One-sentence "paragraphs." A single sentence usually isn't a paragraph. Ask for at least two supporting details.
Practice ideas
Paragraph puzzle. Write a good paragraph, cut it into sentence strips, mix them up and have your child rebuild it in order. They'll quickly see which sentence is the topic sentence and which closes it.
Spot the intruder. Write a paragraph with one sentence that doesn't belong. Can your child find it?
Everyday topics. Practise with low-stakes topics: the best snack, the best season, why we need recess. The structure matters more than the subject.
Try it: Write a paragraph with the topic sentence "Saturday is the best day of the week." Add three supporting details and a closing sentence.
From paragraphs to essays
Once paragraphs click, essays are mostly about putting several together in a logical order. The five-paragraph essay is simply an introduction paragraph, three body paragraphs and a conclusion paragraph.
In Smart Little Writers, Lessons 5 to 8 focus on enriched paragraphs, flow and transitions, so kids have this foundation before they start writing full essays.