Physics textbooks describe electromagnetic induction phenomena with the simple calculation rule called ‘flux law’ but Maxwell’s general law of electromagnetic induction law, based on the vector potential and invariant for Lorentz’s transformations, shows that the induced emf is the consequence of time variations of the vector potential and the motion of electric charges in a magnetic field. […]
Beyond his scientific works and lectures Enrico Fermi left a lot of simple ideas and suggestions that show his unique way of applying the procedures of one science to another science. His idea of using physics to solve the mathematical problem of estimating the value of a definite integral with a sheet of paper and a scale is described and applied to the simple case of estimating π. […]
We show how the illustrations of various natural phenomena visible in Google Earth can be used in school not only for teaching geography and geology but also for introducing the physics of waves. […]
Relativity theory is seldom presented to the Italian highschool pupils. During a Master in Didactics of Physics the author experimented teaching the fundamentals of the theory to adult students in a vocational highschool. The design, the implementation and the results of the experience are described and briefly discussed. […]
Some advantages offered by the conceptual schemes of the irreversible processes thermodynamics in analysing different dissipative phenomena are summarised. The explicit time dependence of all variables and the introduction of new concepts such as the generalized fluxes and forces are the focus of a didactic approach which has been submitted to secondary school students. […]
After the introduction of Joule’s work, his paddle wheel experiment is analysed. The conceptual simplicity of this experimental apparatus makes itself a useful didactic model. Therefore its reproduction, the execution of the experiment and the possible didactic purposes will be described. […]
In 1855 Maxwell developed a formal analogy between the motion of an incompressible fluid, the electric current in a conductor, and the lines of force of a magnetic field. His analysis represents an example of interdisciplinary study of physical phenomena in the past, […]
This article describes two quantitative experiments about electromagnetic phenomena performed with an appropriate interface board connected to a computer on-line […]
A research has been performed in classroom settings, in order to test the didactic effectiveness of original teaching approach to Newtonian mechanics proposed in a previous paper. Two high school classes (students 14-15 years old) were involved in the teaching experiment. […]
We propose an unconventional teaching approach to newtonian mechanics at high school level (age 14-15). Force and energy concepts are simultaneously introduced from the very beginning and then developed through the teaching sequence, with increasing levels of differentiation and formalization. First we sketch basic lines of our proposal and then we suggest some experimental works to perform in classroom setting. […]
This paper discusses the new prescriptions for the Mathematics curriculum in the Italian highschools and presents possible learning activities based on research in education and on the UMI-SIS ‘Mathematics for citizenship’ proposals. […]