The absence of stimuli to develop the cognitive capacity of high school students in the
physics discipline results in the low achievement. In order to propose a strategy that
stimulates students, this study aimed to evaluate the contribution of experimental activity in
teaching by investigation, as a facilitating strategy for the significant learning of elementary
phenomena of electrostatic, in the third year of high school of a high school in Itacoatiara,
Amazonas. The research was carried out at the Deputado Vital de Mendonça State School in
Itacoatiara, Amazonas. It was applied to two classes of the third year of high school, one
control and one participant. For the control class were applied a previous questionnaire,
theoretical class and final questionnaire. For the participant class were applied the previous
questionnaire, theoretical class, investigative activity and final questionnaire. Questionnaire
results were used to assess students' learning. A total of 60 students participated in these
activities. Based on the results, it was verified that the control class had a decay in the
performance between the prior and final questionnaires (53.4% and 35.2% respectively),
while, in the participating class, the students had a correct performance of 37. 4% and 64,6%
respectively. This demonstrates a significant improvement in learning. Therefore,
experimental activities with an investigative character were important for the development
and overall performance of students. Thus, the use of investigative activity in the teaching of
elementary phenomena of electrostatics has contributed to the significant learning of the
students targeted by this study
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