I am so old I took Calc 1 and 2 on quarters and we had class five days a week. Some were lecture hall with prof, some recitation with a grad student. I do remember Friday was recitation, I think another day was too. We had a quiz every Friday and the last question was 60% so I always started on that. I passed out during recitation after donating blood in the Union. Very humiliating. The grad student was super nice about it all.Depends on your schedule.
My calc 1 was a small section led by a grad student but it met MTWF 5-6pm.
My calc 2 was a 200-person section with a prof MWF with recitation 1 day a week.
My calc 3 was about 100 students with a prof in the Marston auditorium.
Diffy Q felt like roughly 40 students.
Did you never take chem or physics? Those were always huge sections