Despite that mathematics is the basic language used by physicist to construct formal entities, at high school level sometimes this is poorly implemented, as the case of the
naìˆve definitions of important entities like the pseudovector (axial vector) and the limited use of the study of the symmetries for example in the analysis of electromagnetic systems. In this paper two simple experimental contexts are proposed in which students investigate the pseudovectorial nature of electromagnetic field vector and a simple formal explanation of its nature starting from the analysis of its behavior.
