This chapter introduces a methodology to study how educational technologies on tablets are being used in schools. Specifically it investigates how different educational technologies influence the organization of the learning environment and the way teachers teach. Educational technologies differ greatly in how they offer educational materials and how they use students´ data (learning analytics). It is important to understand the impact of educational technologies on the way teachers shape educational innovation. We view educational technologies on tablets as an instrument for teachers to support them to improve their teaching. Three models are introduced to investigate how educational technologies impact the organization of the learning environment and teaching practices, namely the class-rotation, the actor-control and the pedagogical decision making model.