A função linear baseada na resolução de problemas : um estudo envolvendo salário e profissões

Abstract

This research aims to relate knowledge of linear function to the context of wages and professions present in everyday school life. To carry out the proposal, the following specific objectives were established, which consisted of: I) Elaborate an instructive lesson plan, apply and evaluate the positive and negative points; II) Relate the linear function content with the theme of professions; III) Apply the problem solving method in the classroom. The activity was applied in three classes of the first year of high school in a public school in the metropolitan region of Porto Alegre. As a theoretical reference, authors who discuss the concept of problem solving and linear function were used. The application of the proposal was divided into three moments, in the themes: cost of living; salary and occupation; and Problem solving. It should be noted that the first two stages served to contextualize the theme with everyday life and then, in the final stage, actually use the problem solving method. In the results, it was possible to perceive the students' motivation with activities that establish relationships with their daily lives. The use of questionnaires created the opportunity for communication between students and the teacher, promoting a more democratic and encouraging class. The resolution of problems in groups presented as possibilities of using the linear function in everyday life and fostered teamwork. The planning and application of the unprecedented class allowed new perspectives for the teacher in the elaboration of more motivated and meaningful classes for the students.