What are ways to earn extra credits in high school?

I heard that people can earn extra credit for doing certain things. Like volunteering more than certain hours, earning certificate for driving or swimming, getting first place in an competition, etc. I did some research online, even the school board doesn't help at all. Does any one know ways to earn extra credits in high school except for attending AP courses? Thanks. :)

If your school board doesn't have an answer, how would anybody here know? They are the ones that would give you the extra credit. If the school board or the administration of your school can't tell you how, it's safe to say they don't offer extra credits.

Like Rob said, talk to your guidance counselor. They will tell you what to do.