Each course bears a three-digit number. The first digit indicates the class-level of the course as follows:
1 for freshman-level courses
2 for sophomore-level courses
3 for junior-senior level courses
4 for senior-level courses
Each course bears a three-digit number. The first digit indicates the class-level of the course as follows:
1 for freshman-level courses
2 for sophomore-level courses
3 for junior-senior level courses
4 for senior-level courses