The project “You + I = We, together for a sustainable world” is about understanding each other’s culture and raising awareness on students, on the way they behave and how they individually contribute to a more sustainable world. Different ICT tools will be used in order to answer different objectives: communication (e-mail, chat, videoconference), collaboration (blog, wiki), information delivery (electronic presentations, videoclips) which will enable the students and teachers from the partner schools to work on a collaborative basis.