Classes
A class is a particular instance of a live, instructor-led course that occurs on a regular, set schedule. For example, "Intro to Phlebotomy" could have two different classes: one which meets at 3:00 PM, and one that meets at 9:00 AM. Each class will have its own set group of learners.
A class always refers to a live gathering of learners, taught in-person, in a classroom, at a specific time, by an instructor. A course refers to a specific subject and its curriculum, but does not cover specific classroom session times or instructors.
In order to take a class, you need to first find a class you wish to attend, register for the class to add it to your class list, and finally, attend the class at its scheduled time.