I've watched many WBT videos, and it seems that all of the teaching/learning taking place is oral - no one is writing anything down! (horrifying to me, the compulsive note taker and sticky note creator) I plan to use interactive science notebooks and expect my students to at some point during each lesson take notes. How do I incorporate this into a WBT lesson? How do I account for the many students in the class who are slow or unwilling writers? If I put a time constraint on their writing time, then it becomes illegible or unusable. Thoughts/suggestions?

I use WBT and ISN on my Science and Social Studies class.
First, I introduce the lesson with WBT.
Then we do notes together. We usually do notes - Cornell Style in our notebooks. We take them on the right side. They have to pick out the key words and write them in the margins. They summarize each page at the bottom.
We close note taking with Crazy Professor Reading of our notes and WBT class discussions.

I am working on using the Ultimate Homework Model for their left side assignments.