Schools in Frankfurt

Hello everybody,

we will relocate for the second time in Frankfurt and although I was expecting to be easier this time, I'm facing new "challenges".
These are school related - as my daughter is in the second grade in the meantime. She was born in Frankfurt, she attended a private german school, so the language wouldn't be a problem.
But I have no information about schooling and their ranks in Frankfurt, so I am puzzled about house searching also (as they are related).
Can anyone point me some neighbourhoods known for good schools?

Thank you!
msn