one of the main problems you will find with throwing in creationism into biology is that you are going to have biasis... currently i am in phsycology 11 in my last year of high school and my phsyc teacher biased the crap out of the lessons... for instance when she talked about evolutionary phsycology she just said all they belive in is "food, sex, sleep" and the she goes to say in a comforting tone "now maslow...(describes maslows hiearchy of needs in great detail)"
if that happenes in my prescious biology 12 class i'd go nuts O_o because i live in a small hick town that 80-90% are christian... when evolution comes up they only retain the information long enough to pass the tests rather than see the point. also in phsycology 11 my teacher kept telling the class to be "critical thinkers" and then she doesn't even let room for debate or oppinions... so she's teaching us to be critical thinkers and when you do she doesn't want you to. same would happen with creation in biology.
i see your point and i firmly belive that hypothesis and theories should have opposition... but if you cannot shoot down your opposition then no progress will be made. the theory of evolution can almost become a Law but there are BILLIONS of people in the world who literaly belive in the bible, koran... and other books promoting creationism. and you can't prove their religions wrong because if you do the go "LALALALALALA can't hear you"
if creationism was in my biology class I would have to defend my belifes agains 90% of my class and one of thouse students is a bible thumping radical who has no problem thinking homosexuality is a mutation.
i'd be a friggin nightmare >_< and i would get crusified.