Possibility of moving to San Paulo (São Paulo)

I am considering to move to San Paulo and I would move with my family. I have two children and they are 10 and 14 years old.
I would like you to tell me how is life for childen of theses ages in Sao Paulo. Are there many expats with childrem of this ages? Some from Spain? How these young people adap themselves to Sao paulo? Are there any recomended schools for them?

Thanks a lot for your coments and help.

Faustino