A couple of pieces of advice for the kids who are serious...

A couple of pieces of advice for the kids who are serious about writing are: first of all, to read everything you can get your hands on so you can become familiar with different forms of writing: fiction, non-fiction, poetry, journalism. That's very important. And also keep a journal. Not so much, because it's good writing practice. Although it is, but more because it's a wonderful source of story starters.