Teachers and Students educational activities based on cosmic muons in France

Cosmic muons are a concrete way to introduce the physics of the "infinitely small" in high schools. In France, over the years, some teachers and students have developed a wide range of educational activities that are presented during classes or in the context of scientific circles. Building around various tools provided by scientists such as educational cosmic muon detectors, these teachers and students have imagined and implemented innovative projects, often in relation to their environment; designed new equipments and proposed related experiments adapted to classroom teaching; encouraged novel pedagogical interactions between researchers and students, etc. Such creativity is remarkable, given the lack of resources and the limited time that teachers can dedicate to such long-term projects. Thus, the purpose of these proceedings is to review some of these achievements to the outreach and education community.