This article, based on a case study in a One-to-One school, draws attention to how teachers perceive that their teaching is influenced when their pupils get a laptop. The result shows that when digital learning resources are used it creates new opportunities, as well as new and problematic situations. The teaching can be organized in new ways and the subject content could be presented in other ways, but this also takes time for teachers to prepare and learn to teach in this way. The study confirms what other studies of One-to-One-schools have found, for example, that the pupils become more motivated and it is calmer in the classroom. When pupils get a laptop, it will change teachers’ roles, to more of planning and flexible teaching and less of traditional teaching.