A note reference mark indicates that there is an explanation note at the bottom of the course. You can view these notes by clicking the "View Notes" link on the student dashboard. The appearance of these notes is different depending on the course structure. If the course has multiple sections then there will be several note reference marks, one for each section. If the course has only one section then there will be only one note reference mark. This single note reference mark signals that there are no further notes in this course. However, the course may have other interactive elements such as assignments and tests. These elements will also have corresponding notes associated with them. The presence of note reference marks is indicated by a green dot next to the name of the course. Clicking this mark will take you directly to the first note in the course. Note reference marks are useful for identifying parts of the course material that are not included in regular courses. For example, if there is information about how to prepare food in the cooking course but not in general biology courses then this could be identified by including a note reference mark for just the cooking course.