Unfortunately on one hand, I have some experience in this matter. We were foster parents for a time, and did the best we could with our son.
I feel for this boy, I really do. I don't think anyone should be denied an education. I have a real concern that this child has only been in this class for less than 2 weeks. In less than a week his behavior has progressed from what I'd consider to be fairly harmless kicking from behind, to spitting into someone's face and now to a sudden outburst that drew blood on a student. Not to mention all of the other incidents that haven't been reported, and the regular actions he has that scare the other kids to the point of crying in class. While I do understand what the parent that has a child on the opposite side of this is saying and I cannot imagine the daily struggle you go through. As the parent of a child that we are blessed does not have those kind of conditions I have to say as much as any child has the right to an education, DD has equal rights to her education and not to fear being in the classroom. My personal thought is this little boy is 5, obviously he's not getting far academically if he's constantly acting out. It would seem to me the focus should be more on teaching him behavior in a social setting as opposed to mainstreaming him and hoping he absorbs something academically related in the process. Meanwhile the other kids in the classroom might not reach their full potential due to the constant disruptions and stress this one child is causing. I think the foster mom is probably doing all that she can, although personally I don't see where making sure he's getting a warning first with violent behavior is helpful. She seems to be a bit misguided here. To me all it's teaching this child is he gets a freebie warning before an consequence happens. If this involves talking out of turn, the basic pushing and line cutting common with this age group, yes a warning is totally appropriate. Drawing blood and other violent actions to me need to have a set consequence that is applied immediately with no warning. At the very least I do feel an apology is needed for these instances to the children affected.
I agree with another posted that mentioned some time for him to adjust. For all we know, he was placed in the foster home and was immediately enrolled in school Whatever this boy has been through, I can easily see anger issues. I'm so very sorry that your child is seeing society in some of the worst ways at an early age.
As for asking about a warning: foster children are usually under the care of several professionals that work at behavior plans, coping techniques, etc. The foster parents are EXTREMELY limited at what they can do for discipline. CPS is in control of the child, not the foster parents. Not an easy position to be in, especially with behavior issues at school. The foster mom was most likely reminding the teacher of the behavior plans that would have been presented when enrolling the child in school.
I wish I could understand this as well especially when many children with special needs/disabilities cannot get an aid when they need one.
Sounds to me like this child has special needs.
In our instance, the agency did not fully inform us of issues and background. After a few months he had to be removed from our home for my safety (he was aggressive towards women and threatened to kill me). We showed up unexpectedly at the agency and requested to look at his file. I assure you what we saw in our surprise visit was nothing like the one that was presented to us for placement! After seeing his life history, I really understood why his behavior was what it was, but it in no way excused it. He honestly needed to be in a strict setting, not a family one.
OP, I know you want to protect your daughter, but this boy has issues and keeping him away from other children will not allow him to learn needed social skills. Though I have not had to deal with this type of thing (so much aggression), there are kids that play more roughly than others. I teach my girls even now (k and pre-k) to just stay away from them.
As for the academia, from what I understand (your schools may be different), kindergarten is largely learning routine and social skills. Your daughter was in a preschool, it seems as if this boy likely wasn't.