Topic Sentences

​A topic sentence is like the boss of a paragraph - it tells you what the main idea is.

Topic Sentences

The topic sentence is about baseball in many countries.

The other sentence is about baseball in just one of those countries. It supports the topic sentence with a detail.

The topic sentence talks about the overall experience of playing the guitar. It's fun.


The other sentence focuses on one part of that fun experience, which is playing different songs by learning chords.

This sentence supports the topic sentence with a detail.

Supporting Details

A supporting detail sentence is like a helper that gives more information or explains more about the topic sentence.

Supporting Details

The topic sentence says that in Mexico, soccer is important for fun.

The first supporting detail tells us one way people enjoy soccer, by playing together.

The second supporting detail talks about soccer being part of special days when everyone watches the games.

The topic sentence gives the main idea that Pokémon games are good for learning.

The first supporting detail explains how it helps with reading and puzzles.

The second supporting detail says that trading Pokémon can teach you about sharing and trading fairly.

The topic sentence tells us the big idea: sleep is good for being healthy.

The first supporting detail says how sleep helps you feel better in the morning.

The second supporting detail tells us that sleep helps your body fix itself when you're hurt or sick.

The topic sentence gives the main point that dirt bikes are fun to ride outside.

The first supporting detail talks about the kinds of things you can do on a dirt bike, like riding over hills.

The second supporting detail tells us that being safe, like wearing helmets, is important too.