You would use a semicolon (;) when you could stop a sentence but choose to continue it further.
1. Did you have a good time?
2. My weekend was cool. It was my birthday on Saturday. I played soccer with my friends.
3. My team lost but we had fun.
4. Then we ate pizza for my birthday party.
5. We watched avatar on television. Have you seen it?
6. I did my homework over the weekend so my teachers weren’t angry today.
Depending on what ur topic is,u need a few reasons why u think that is a good claim because that will be evidence that helps support ur claim.