Uma investigação sobre concepções de professores e uso da calculadora científica em sala de aula para a resolução de problemas matemáticos no Ensino Médio

Abstract

In this research, we observed the issues facing the use of the scientific calculator as well as the exploration of some features found only in this type of machine as the trigonometric ratios, exponential and logarithms for use in the classroom. This work arose from our concern in the classroom to try to show that mathematics can be crafted in a way to arouse the student's curiosity to develop their learning and, in this search, we realized that the calculator is a resource that can help with teaching and learning of mathematics focused on understanding and working with problem-solving activities. A literature-based works such as Albergaria and Ponte (2008), Borba (1999), Laureano and Medeiros (2008), Mercê (2008), Ponte and Cebola (2008), Selva and Borba (2010) was taken, among others, focused on the use of calculators as a tool to solve problems. The research was guiding question to know "so that teachers of secondary education, design and practice of mathematical problem solving activities using the scientific calculator." The overall goal is to understand how the calculator can be used as a pedagogical tool for teaching mathematics to solve problems in the classroom. Thus, we work with the proposal of a short course where teacher s research participants were able to share tips and experiences after implementation of activities in the classroom. We chose three cases for observation following some criteria of the research itself for each one to be a case study. The results obtained in this study indicate that teachers essentially accepted the job offer with the scientific calculator understanding the importance to emphasize an area of your routine classroom to implement activities that may be directed to the use of the calculator as a resource for classes.