I'm currently in an undergraduate class that is focused on doing group presentations. This class has a total of around 80 students, in groups of 4. Every two to three weeks we are required to present a 10-15 minute slide show on a specific topic to the class. The issue is our professor does not want people going on different days, because he feels it gives an unfair advantage. On the course schedule the class runs from 1810-1930, however on presentation days he expects all students to sign in at the start of class and sign again at the end of presentations (which seem to run until around 2200).
We've tried to talk with the professor about how late classes are running during presentation days and his solution was to move them to Saturdays from 0800-1200 (but keep the normal class times during the week). He is refusing to break presentations up over multiple days and falls back on the fact he let everyone know this would happen during the first week of class and we had ample time to drop the course.
Is this expected behavior for a large class focused on multiple group presentations? It's too late to drop the course (this wasn't really an option from the start since it's one of the few upper level classes offered this semester), so is this a case of just suck it up and deal or should I bring this up to my department?