Writing Strong Paragraphs

Learn the structure of an effective paragraph: topic sentence, supporting details, and conclusion.

What Makes a Strong Paragraph?

A well-written paragraph has three key parts: a topic sentence that states the main idea, supporting details that provide evidence or examples, and a concluding sentence that wraps up the idea.

The Topic Sentence

The topic sentence is the most important part. It tells the reader exactly what the paragraph is about. A weak topic sentence might say "Dogs are nice." A strong one says "Dogs make excellent companions because they are loyal, playful, and emotionally intuitive." The strong version makes a specific claim that the rest of the paragraph will support.

Supporting Details

Supporting details can be facts ("Studies show that dog owners have lower blood pressure"), examples ("When my sister was going through a difficult time, her dog Mochi would stay by her side"), or explanations about the main idea. Aim for 2–4 supporting sentences per paragraph.

The Concluding Sentence

Restate the main idea in different words — do not just copy the topic sentence. If your topic sentence was "Dogs make excellent companions because they are loyal, playful, and emotionally intuitive," a good concluding sentence might be "For anyone seeking a devoted friend who brings joy and comfort into daily life, a dog is hard to beat."