Here are some research sites models that you might find valuable. 
 
 

Fieldnote #1

This link: http://www.mygo.com/home/society/bfjournal/contents.htm provides an example of research field notes. You will find that there's a stream-of-consciousness element to them. The researcher has simply made remarks about what's being observed. This style works for Big Jake in your classroom as well as Big Foot.

In handwriting, often, the researcher will carefully code the notes as a first step to organizing them. I find this step to be exciting; the patterns of discourse and activities begin to be catergorized into meaningful chunklets. The feeling is like staring at a fuzzy 3-D picture until it pops into dramatic clarity. It feels like you're a researcher.

Also note how the writer borrows from some of the conventions of the formal research paper, yet makes the piece engaging by incorporating narrative elements. I think you'll find this piece enjoyable to read.

Here is a wonderful site called the Classroom Action Research Abstracts (known as CAR), listed alphabetically by subject. There's a good chance that your research interests will be represented or supported on this site. In other words, you might want to adjust your focus or piggy-back on the focus of one of these papers

Here is another helpful site for Action Research/Teachers as Researchers.