Aulas práticas no ensino de ciências : a construção do conhecimento científico sobre protozoários por alunos do 7º ano do ensino fundamental

Abstract

In most schools of our country, many of the students never had the opportunity to participate in a practice class or join a teaching laboratory of science; however, this constructivist methodology of teaching can help a lot in building new scientific knowledge by the students, mainly because it is a time where the student is responsible for their own learning. Thus, this study was conducted in a group of the 7th grade of an elementary public school from Maringá-PR, in order to investigate issues related to the building knowledge on the protozoa subject, during investigative practice classes of the Science class. For this, the data acquisition and analysis were based on questionnaires completed by the students during dialogues that occurred in the application of a didactic sequence and in the pre and post concept maps made by the students. The mean results revealed that the construction of scientific knowledge through practical and laboratorial classes can also be afforded in environments that do not have properly working conditions and lack of materials; furthermore, the concept maps are a faithful instrument to evaluate teaching and learning, because it is a tool that permit checking the progress and the meaningful learning of the student.