Subjects lectured per week I am currently lecturing at a private tertiary education college where I am obliged to lecture, on average, 12 distinct subjects per year at both diploma and degree level. I lecture 6 to 8 subjects per week or around 4 or 5 unique subjects per day across all graduate levels (first, second and third year students). Some of these classes are repeated identically up to 7 times each week for 7 different groups of students for around 30 to 35 lecturing hours per week. 

I am currently feeling a little overwhelmed by the workload. Is this normal for a private education institution?
I have never heard of an undergraduate institution inflicting this level of lecturing on a professor.  Perhaps it happens at vocational or associates degree schools, where, e.g., you might be teaching a whole bunch of sections of "database entry" or "machine operation" or something like that?

For my colleagues at institutions offering 4-year degrees, the normal range is:


1-2 classes in a semester at a research-centric institution, where the professor is expected to also be supervising Ph.D. students
3-4 classes in a semester at a teaching-centric institution, where that is expected to be the primary focus.


Depending on the format of the classes, then, that is likely to mean somewhere between 2 and 20 hours of lecturing per week, which is still far less than what you report.