The aim of this thesis was to investigate how teachers in school and in leisure time center look at informal and formal learning. Informal learning is often associated with leisure-time while formal learning is generally linked to school. My questions also deal with the teachers’ view of each other’s activities from a learning perspective and visibility of informal learning. I have made an empirical study with qualitative, semi-structured interviews with three class teachers and three leisure teachers. The results of the study show that the informal learning in leisure time center is generally not perceived as learning. Concepts such as knowledge, learning, and teachers are associated with the school and formal learning. The study also shows that it is necessary for teachers to visualize informal learning.