Pilhas feitas com batatas ou limões: uma proposta de atividade prática de ensino de ciências por investigação

Abstract

This study was based on the methodology of teaching science through research, the method of intervention action research supported the Vygotskys theory of social interaction, with emphasis on the relationship between spontaneous and scientific concepts, as well as the development of the Proximal Development Zone (ZDP). The investigative activities were performed in three groups of second year of high school, in the morning hours, in a public state school of Minas Gerais, Belo Horizonte. There was, throughout the survey process, a visible increase the student motivation and interest as well as a significant increase in uptake of the key concepts concerning the classical and alternative battery (built with the potatoes and lemom). Activities investigative practices shared by intervening teacher with students in discussions, library research and the internet, an investigative experiment in class, exams and content on batteries formed the intervention; research activities were linked to students' daily lives, such as use electronic devices (calculators, computers, digital watches, portable radios, etc.).