This is a presentation prepared for an introduction to the topic of social networks. Mu pupils are 14/15-year-olds (3ème) and they liked it! First, they identify the logos and tell what they want about social networks. Then, they define (group work) 3 apps (building vocabulary). Then, they answer the quiz and ask their classmate for their answers (pair work). Finally they write a sentence on their classmate's result.