Originally Posted by aeh
I don't really blame the teachers, though, in most cases, because the demand for secondary STEM teachers so far outstrips the supply that they often force-fit other faculty into them (literally, the gym teacher, because, at one time, you could slide a teacher with an anatomy & physiology, or exercise physiology, or sports physiology degree into a biology certification).

"At one time...?" I think it's still common without necessarily even that amount of experience, just because there is so much need for STEM teachers in some areas.