The project "Let´s break stereotypical thinking" involves secondary schools from three different countries: Poland, Spain and Italy. The main problem discovered during needs' analysis is existing stereotypical attitudes towards different cultures and values and the lack of system solutions to combate it. The main aim is to reduce existing stereotypical attitudes towards diversity, promote acceptance, increase intercultural understanding (connected to priority social inclusion) to prepare schools for working in multicultural society. We aim to redefine European citizenship based on values as freedom and tolerance.