The tips begin at a different place in each module. The advice moves along with the stages of the course.
The dichotic listening task is a paradigm from psychology. The task is a way to study selective attention in which different auditory stimuli are directed into different ears over headphones. The basic conclusion of this experiment is that people do not recall the attended message well, and are able to report almost nothing about the unattended message. Some students let note taking turn learning into something like a dichotic listening task. It's easy to become so busy taking notes that you don't pay attention and think deeply about the material. Make sure the activity of note taking promotes engagement rather than distracts you from it.