Hey, how about we just toss in a 30 second speech, something like
"Class, we have spent the last
insert period of time)X talking about evolution, and what you have been taught in this classroom is the best that modern science has to say about it. But we should mention that not everyone agrees with it, and if you are interested in those ideas you may research them on your own, you could begin by googling "creationism" or "intelligent design". Now, on to the structures of the cell"
I dont see any harm in this