Orquestração Instrumental de uma situação Matemática de aplicações das Integrais Duplas.

This paper aims to describe and analyze an instrumental orchestration which aimed to apply the double integral in determining the center of mass of a variable density blade and the electrical charge in a given region. The study, qualitative in nature, involved undergraduate mathematics and engineering students of a public university in Amazonas, and the data were collected by observation of classroom activities and recorded through video recording and an electronic form questionnaire. The theoretical framework is composed of Luc Trouche's Theory of Instrumental Orchestration and Guy Brousseau's Theory of Didactic Situations. The results show, among other things, that the stages of action, formulation, validation, and institutionalization when used in the instrumental orchestration performance mode are important elements of didactic situations and that, through them, the teaching and learning processes contribute to the construction of knowledge. [ABSTRACT FROM AUTHOR]