There should be examples on the web. The only thing I'd add is that resume writing is incredibly common -- millions and millions are written every year -- so there's lots and lots of information out there. (There's even services that will help you write a resume.) But also: your high school probably has a guidance counselor whose main job is to help people apply to college, but who might also be able to advise you about writing a resume. (Or at least refer you to someone who will.)