OK, one of the aspects of Creationism is the notion that humans are extremely improbable.
That's just rubbish in straight mathematical terms, before we go anywhere near biology.
But when I say "rubbish", it's not obvious rubbish. Anyone who's done degree level maths will spot the obvious hole, even if they studied in Britain.
But how can an RE teacher handle that, given few have A level maths, and most syllabi for the dumbed down version we have these days doesn't do this sort of probability ?
For those who haven't done probability it goes like this.
There are actually more than one type of probability. For instance I may see a preganant woman, and from my point of view it's 50/50 that she's carrying a boy. But of course from the baby's point of view there is no uncertainty at all.
Probability is a measure of our ignorance. So when I hit a golf ball into a field it may hit any one of a million blades of grass (or in my case trees, cows, or quite likely not move at all).
Thus before I hit my ignorance says the chances of hitting this particular blade of grass is one in a million, certainly that's the number of times I'd have to hit the ball to hit that stalk.
But once I've hit some blade of grass, the probability that I actually hit it is 100%.
Once the experiment is over the result is 100% what it is.
Thus even if your ignorance of physics is so profound that you think the emergence of intelligent life by purely natural processes is extravagantly improbable, it doesn't matter. We're after the time it happened, therefore the probability is 100%. The chances of the particular combination of football scores we see today in the 4 divisions is trillons to one against. But we do have this set now. To say it's improbable that A beat B , C drew with D etc is meaninigless because we are after the event.
Thus the point of teaching Creationism is that it's bollocks, not an item of faith.
Been a long time since I had an RE lesson, but I'm pretty sure that you're not allowed to say "Jews/Sikhs/Moslems/JWs believe this but it's so stupid you havd to wonder how these people cross the road without getting lost".