Utilização do software GeoGebra como ferramenta de ensino de funções trigonométricas no 2º ano do ensino médio

Abstract

In general, the teaching of trigonometric functions has caused difficulties mainly in the theoretical understanding of what the sine, cosine and tangent of an angle represent. In this sense, the use of digital tools can help in understanding these contents is fundamental for teaching/learning trigonometric functions. Thus, this work presented the GeoGebra software as a didactic resource that helps in understanding the contents mentioned above. For this, a proposal is presented of the teaching of trigonometric functions from the use of didactic sequence resources in the teaching of dynamic geometry. This proposal was applied to 2nd year students of a public school in the city of Rio Tinto-PB. The methodology used in the research, in relation to the objectives was exploratory research and in relation to its technical procedures, it was characterized as a case study. It is worth noting that the content had already been taught in the traditional method, using chalkboard and chalk. At the end of the activity, a research was applied where the sample size was 16 2nd year students, the instrument used in the survey data collection was a survey activity that proved the effectiveness of the proposal among students regarding a better understanding of the content addressed from GeoGebra. Thus proving the idea that the use of technological resources is an indispensable tool in the teaching of mathematics.