I think I recall my high school teacher giving us background about the various theories of turning led into gold. What is wrong with that ?
Because the efforts of the alchemists to create gold were what led to modern chemistry.
But the bottom line is, you CAN'T create gold from non-gold, except by manipulating atomic structure. That is now accepted as fact. End of story. Just like evolution is accepted as scientific fact. End of story. (the arguments that it is not accepted in fact, are proposed by people entirely outside the field of science, or by charlitans making money from fools)
Did she introduce them in any sense other than to discuss why they're now considered incorrect?