Answer:
Topic sentences:
1. Building a birdhouse can be lots of fun.
2. Our PE teacher is really tough sometimes.
Supporting sentences:
1. When you paint it, you can go wild with the colors.
Friends can work together on planning and building the birdhouse.
2. Once we had to run in the rain!
She blows the whistle really loudly.
We have to run lots and lots of laps.
Explanation:
The topic sentence is the sentence that summarizes the information in the paragraph. It's usually the first sentence of the paragraph.
Supporting sentences contain details about what is stated in the topic sentence.
We can divide the given sentences into two groups (or paragraphs). One group tells about the process of building a birdhouse, and the other about a strict PE teacher. Both of these paragraphs have to have their topic sentence, so there are two topic sentences:
- Building a birdhouse can be lots of fun.
- Our PE teacher is really tough sometimes.
The rest of the sentences are supporting.
