Background knowledge

During the first week of class Prof. Orth assigned some activities to assess our background knowledge. I wrote this letter to the professor explaining what I know, and what I want to learn about stream habitat management:

And I sketched the field of stream habitat management imagined as a tree. We only had 15 minutes in class to come up with this:

I figured the above tree didn't do justice to my background knowledge of the subject, so I went home and came up with this concept map, which I imagined more as a web than a tree: