Course codes display info about the course. In general, the first digit indicates the level of the course (1st, 2nd, 3rd, or 4th year level). The following 3 digits indicate the difficulty of the course within that year. So a 2800 course is meant to be slightly more challenging than a 2076, for example.
Written by: Karmen Tse in 2022, a Ivey HBA and Honours Specialization in Psychology Candidate