Resolução de Problemas e o software GeoGebra: um caminho para a compreensão das funções seno e cosseno.

This paper has a research that objective to use GeoGebra software in a problem solving approach, for an understanding of the sine and cosine functions. To this end, the use of technological resources in Mathematics classes are discussed, with a view to enabling research. The following is an analysis of an activity, carried out with a second year class in High School, in the area of skills and competences evaluation. The results of the methodology research thus allow the development of autonomy and a collaborative work culture in the construction of concepts, as well as the investigative process would not be possible without the use of technological resources. [ABSTRACT FROM AUTHOR]