O ensino da trigonometria e a história da matemática

Abstract

The present work has the main objective to study how the transitions trigonometric ratios occurs: sine, cosine and tangent, represented in the rectangle triangle, to represent the trigonometric cycle, and to introduce a sequence of activities about transition to students in the high school, through History of Mathematics. Founded in the qualitative approach, the study is based on bibliographical research. To address this issue are discussed some of the advantages and disadvantages of the use of the History of Mathematics in classroom; the history of trigonometry as regards the trigonometric ratios sine, cosine, tangent, there, are addressed some searches about the teaching of trigonometry and Maths History; and as a result of this research, we will present a proposal for a sequence of activities about the transition of the trigonometric ratios sine, cosine, tangent represented in the rectangle triangle, for the representation in the cycle trigonometric trough History of Mathematics