The wide use of digital technology for educational purposes opens some issues regarding its integration within the school curriculum. In this paper we present a model that illustrates the roles of teachers in transforming digital technology as a resource to develop skills as required in educational curricula. The Teacher Role in Introducing Technology at School - TRiTS - model has been conceived by combining relevant literature and findings from a case study that we have been running in a primary school over the last four years. Our research aims to contribute to the current discussion about how mobile/portable technology can be integrated in formal education. © 2013 ACM.