Idea mapping is another good way to get organized. It sometimes works better for visual-spatial people. Here they call it a "mind map," but it's the same thing. It's a bit more free-association and more visual than a lot of organizational methods.
http://en.wikipedia.org/wiki/Mind_mapI'll add that I think *no* writer should be required to use any particular method to get organized. The only thing that matters is what works. Some people need extensive organizational tools or crutches and some need a couple of hastily jotted notes and they're good to go. I was required to use index cards on a paper when I was in high school, and it very nearly made me nuts. It's a GREAT method, but it wasn't a good method at all for ME--I wrote all the cards after I wrote the paper.
Drafting is pretty much the only process that *everyone* should use, and even there, some people draft virtually finished work the first time out. That respect of a person's own needs has to be okay.
Offer possibilities to a student, but let the child play with them as s/he likes and see what works. Some things will and some things won't. The child will usually tend to gravitate toward what helps him/her. Follow that!
Sorry to keep chiming in. Everyone is posting such good stuff that I can't seem to help myself. Plus I am enjoying getting to use my writing/teaching stuff again!