The use of the Homemade Theodolite by high school students at a state school in the city of Araguanã – TO

Abstract

The context of this study is the classroom, and it intersects aspects of the initial training of teachers who teach mathematics and teaching practice in the supervised internship. The guiding question was expressed as: in what perspectives does the homemade theodolite contribute to the learning of trigonometric ratios in the right triangle? The methodological approach is of a qualitative nature, as it delimits the context of a second-year high school class for the development of activities linked to a teaching project. Data were produced through observation notes in a field notebook, as well as the recording of photographic images in a complementary way. The results point to the active participation of students; the homemade theodolites used fulfilled the role of Manipulable Didactic Material (MDL), in a double sense, while allowing students to make inferences and discoveries, they also show themselves to be generators of questions for the teacher's mediation.