Experimentos de baixo custo para abordar concepções alternativas sobre corrente elétrica em circuitos simples

We describe in this dissertation the planning, elaboration and application of an educational product aimed at the use of low-cost materials in the manufacture of simple electrical circuits intended to approach basic concepts of electricity in secondary education. The product was applied in a public school in the city of Itaiçaba, mesoregion of Jaguaribe, in the State of Ceará. From the answers presented in the pre-test and in the clinical interviews, we observed the recurrence of alternative conceptions long reported in the literature. We conclude that a pedagogical approach making concomitant use of clinical experiments and interviews may be potentially useful in overcoming alternative conceptions, with conceptual change. Throughout the whole teaching-learning process, the students' satisfaction was remarkable as they manipulated the circuits and visualized the solutions to the questions put to them as a pre-test. They demonstrated satisfaction because they proved something with equipment that they had built