The net was one of the determining factors in a training of a group of 4 primary and middle school teachers (L. M. in Forni Di Sopra and C. D. F. in Villa Santina, P. C. in Tolmezzo and D. S. in Gemona, all places in the mountains of Friuli, in the Nord-East of Italy) in an action-research on the electric charge. It was developed through meetings with researchers in physics education and exchange and sharing of experiences and projects on the net, in an environment designed for
teaching activities and under the guidance of a project tutor. The environment
allowed to establish different kinds of relations: between teachers, between them
and researchers, between classes. It offered to teachers (two in middle school and two in primary school) a place for discussions during the design of paths to be
presented to their classes, to structure and share the products of their training both during and after it, to reflect on their training path.