I'm not sure about that. It'd be a shame to get rid of a child who's been with you so long so quickly. Often I think kids just try to push boundaries and see how far they can go. With serious consequences, chances are good that she'll know you mean business and perhaps won't keep up the behaviour. Personally, my time outs are in a booster chair (same as we use for lunch), facing a wall and away from the other children. Kids are locked into the chair by the tray and cannot decide for themselves when time out is over. And though my ECE training pushes the 1 minute per year of age for time outs, I call BS. Nope....a serious offence like physically harming someone deliberately calls for really feeling the pain. Minimum of 5 mins. Maybe I'm mean, but in my experience, it's stopped behaviour like that in it's tracks. At the end of the time out, I usually try (with older kids) to talk about the feelings they're having and help them come up with other ways to express those feelings that make the bad behaviours come out. She may just be so overcome with 'feelings' that she lashes out. I had a little guy who was like that and we worked on a breathing technique/game that helped immensely. His mom even started using it with her more aggressive children at the school she worked in.

Getting the kid out of the daycare doesn't really rectify any problems. It just pushes it in someone else's direction while the child doesn't actually learn anything. This could just be a blip that can be easily sorted out. My nephew used to hit/kick his mom frequently. He tried it with me ONCE....done. Never a problem since. I believe he's gotten better at home as well...so you see, it may be a temporary thing. Don't give up on her yet.....just my opinion