This Chapter is entirely devoted to presenting a consistent package of transdisciplinary didactic activities that we propose for teachers at all school levels and in all educational systems to implement experimentally in their classrooms. They allow for a thorough translation into actual school practices of our multiscale critical pedagogical approach to citizenship education, at a local level. The results of their implementation in different school systems can contribute also to the continuously evolving research and action regarding the cross-national demonstrative curriculum discussed in the previous Chapter. We divided this Chapter into twenty-two Sections, one for each activity outline.