Sorry to be another sour note, but personally I would recommend that anyone with kids under school age not come to China, and anyone with kids at school age, think very very carefully.
Medical care is substandard, seriously. If neither parent knows medicine, it is a risk to bring kids here. They seem to be OK with the actual birth, but they seem to WANT more to die off. Young kids NEED good medical care. This is not the place for it.
Education is substandard, mindless copying. Teaching methods are barbaric. If primary school, kids can be punished for doing something different (eg colouring the moon blue, or drawing a different picture) from other kids. If high school, punishment is severe and seemingly pointless.
If under school age, then nannies etc are important, but you won't like their ideas of childcare. Without someone to explain seriously in English what you want, you get some weird shit and they will administer weird medicines etc without telling you.
It has been a struggle for us, even with Chinese language and medical knowledge.
The ones I know that are happy have their kids in western style schools which are expensive unless you contract to them.
Of course, for a year with teenage kids, this could be the experience of a lifetime. Depends on why you are coming.