FROM ELECTRON TO SUPERCONDUCTORS: DISCUSSING THE ELECTRICAL CONDUCTION THROUGH A MULTIMEDIA RESOURCE.
In this work, we present a multimedia resource concerning the teaching of
electrical conduction on materials in a High School level. The videos were designed
considering the principles of the Cognitive Theory of Multimedia Learning, proposed
by Richard Mayer. In order to address the theme, we first introduce the microscopic
features of matter, such as the atomic and crystalline structures, and discuss the classical
description of the electronic conduction on metals. The videos also discuss in details the
Ohm´s Law, giving particular emphasis to its graphical interpretation. Finally, we
discuss the physical mechanisms that affect the electronic conduction of the materials,
and the basic properties of superconductors, focusing on the Meissner effect, the
phenomenon responsible by the magnetic levitation. The educational resource here
proposed was applied to two High School classes of the third year according to the
flipped classroom, an active methodology. To perform a qualitative evaluation of the
students learning, we compare the answers given by them to a survey applied prior and
after the application of the instructional resource.