When you are taking notes, your body becomes active and involved and it helps you to avoid feelings of disturbance or drowsiness. As you take notes, you will focus on the key ideas you are listening to discover the structure of the classroom. Creating effective notes will enable me to explain secondary points of presentation, review, and easy to understand after class. Unit-7 Exercise 7. Effective notation improves your academic ability. Effective note-taking helps keep you focused.