I want to be a high school cheerleader?

I've never cheered before, but I took 6 years of dance and 3 years of karate. I want to be a cheerleader for my high school next year, but I need to know what I need to know how to do. I want to be a dancer, though, not a tumbler. Help, please? I just need to know what moves I need to know. Thanks in advance!