How to read the timetable
Understanding the academic timetable
Sections: Some courses are broken up into smaller sections, offered at different times or in different rooms. Each course section will have a different CRN. Double check that you've got the one you want. Each line under a course title represents a section.
Blue or green lines: These lines indicate labs or tutorials associated with a course. If a class has a tutorial or lab, you must register for that as well.
CRN: The 5-digit number found in the column near the left of the timetable entry. This is the number you will use to register for each course online.