If she's copying, she probably shouldn't be writing them backwards. Otherwise, I agree it's normal at that age. I think you should definitely keep an eye on this. DS has some pretty severe writing issues (at age 8, his writing is still very hard to read), he has an IEP and is pulled for services, including OT and written expression, but he didn't have problems to the degree you are describing in K or 1st grade. In the beginning of K he was able to copy sentences, just more messy and slowly than the other kids. I would talk to the teacher and see what he/she says about it, and whether she acts the same way in class.
