Short culture exchange to Italy/Milan

We are a german italian family with tree kids Leo 3, Siria 9 and Romeo 11 living close to Milan. The kids are speaking Italian and German a bit and start to speak English. We would like to invite in the coming holidays (winter/easter/summer) for 1-2 weeks an english speaking student 12-16 years old maybe with german or Italian language-studies, but not obligatory. We can offer Italian culture and also german language conversation. Please contact Tanja/mother telloya@teletu.it