So, based on what the questions asking. It seems that a Flowchart would be most effective because you can see the difference of how close the students test scores are almost identical to them taking notes. You are able to see the decrease or increase of how much attention they give to it and how much they don't.
Sample response: One prediction I have about what will happen next in the personal narrative is that Frederick Douglass will become a free man. His new owners seem nice, so they will do the right thing.
