The digital society requires the acquisition of skills related to computer sciences like computational thinking or competences in coding. Also transversal competences like communication, collaboration and creativity are increasingly important. Educational robotics is perceived as a valuable tool to increase such competences and is more and more present in the new school curricula. However only few teachers carry out educational robotics activities in their classes. The Roteco project aims to train school teachers in the field of educational robotics and computer science and to develop a community where teachers can find support and exchange experiences and educational activities in order to increase the presence of robotics in school classes. In the project a teacher training and a collaborative platform have been developed. The platform allows teachers to contact other teachers or experts. Teachers can easily publish, select and download didactic activities of other pairs with the related materials. In this paper the project and first results are presented.