A mascot is sent by a class to conduct an investigation of students from another country (icebreaker activity in the form of games learning apps), then widens his scope to the class space, the city and the country. Finally, the students will prepare together during a "live event" the international event "La Grande Lessive®", which is an ephemeral exhibition of drawings around the world on a theme common to all. All surveys and reports in different countries will be highlighted in a digital magazine.