EMF physics and bioelectromagnetism are not easy subjects to be understood and appreciated by secondary schools students and teachers in general face difficulties in finding the right teaching approach and building a real interest in the subject. In this scenario, our work represents an attempt to develop a teaching method, alternative to standard class lectures, leading to the full comprehension of the subject and to the rising of a true interest in pupils. The proposed teaching strategies are based on ad hoc tools and a school contest. The tools have been designed as small exhibition stands where students can experiment, touch and collect information regarding EMF. Most of the tools are constantly exhibited in the Marconi Museum of Villa Griffone, in Pontecchio Marconi, but they have been projected to be easily portable for local interventions in schools.