Lorentz’s Force represents a conceptual gap as for the analysis of the simple
effects related to the properties characterizing the electric and magnetic nature
of phenomena.
Searching for the definition of a teaching/learning path according to the Duit’s
Model Educational Reconstruction a research dedicated to primary school
prospective teachers has been carried out. This research focuses on the
identification of the magnetic effects of an electric current as a first step
towards the study of electromagnetic interactions. Starting from the
explorations of magnetic phenomena and magnetic effects of an electric
current, the first aim was to detect by a compass the properties of magnetic
field produced by one or more magnets and so to identify the equivalence
between a magnet and a solenoid. Than the identification of Lorentz’s Force
was explored as a new aspect as regards the superposition of field.
In this work the learning path is presented. It is structured and based on
experimental practice according to the Pedagogical Content Knowledge guide
lines whose main results are here presented on the side of teachers training.
