IIRC they (Madison Metro School District) plans on taking the Chineese gvmt on their offer next year.
In Middleton, WI, they have launguage imersion classes where social studies is taught completely in "mexican" for a number of grades.
I think there is a plus and a minus side of this equation. The plus is that the kids learn something different. The minus is that the kids coming out of school can hardly speak or write english as it is.
At least in our school system, many kids are, as teachers put it nowdays "School Dependant", or translated, they are poor people who rely on the school system to feed their kids and to baby sit them.
They come from the inner city portions of Chicago & Milwaukee, also from South America, etc. I am unsure how that is affecting the quality of the student, but I know it is affecting the quality of the taught lesson because the lessons have to be dumbed down or the students can't pass the subjects. That last part needs to change. Expect the kids to attain a certain level of education before moving on to the next grade level, or hold them back until they catch up. I they can't catch up, send them off to a "special needs" school where they can catch up with the rest fo the students and be re-intigrated when they have achieved the expected academic level.