Obviously,I'm not a writing expert, but I love how this post describes the writing process this teacher is using at Duke with her students. The peer editing process is tested and this approach uses a screencast (video that can include audio of what is happening on a computer- mouse movements, ability to highlight text while commenting, etc.)
I think it's right up our alley and incorporates free technology.
Geared toward developing good instructional strategies for entry level geo-science courses at the post-secondary setting, the suggestions can easily be applied to 6-12 setting and are just good instructional practices. Well organized and includes different perspectives and connected content.
I thoroughly agree with the mathematical modeling discussion. It's worth reading