Earlier quoted context omitted.
But the teachers have masters degrees. Besides, teaching college freshman calculus is not exactly magneto hydrodynamics.
But most of them don't have masters degrees in mathematics, do they? Many of them will have a generic Master of Education degree. The normally accepted education level for teaching a university-level class is a PhD.
I was taught freshman calc by grad students - with no "education" training whatsoever. Perhaps these "masters" of education are learning the wrong things.
Freshman calculus just isn't that hard, and isn't much beyond algebra. This "gee math is hard" crap is, well, crap. No PhD is necessary. Hell, I taught it to my kids on the kitchen table, and I have no advanced degree and never took a course in education.