Desenvolvimento de uma unidade didática de trigonometria em um curso de aprendizagem industrial - mecânico de usinagem

Abstract

With the emergence of new business and educational technologies, schools linked to SENAI across the country felt the need to undergo methodological changes that would meet this new demand. However, SENAI-SP showed some resistance, mainly regarding the support material used by teachers and instructors during their classes. One difficulty is found in the book of Applied Mathematics curricular unit, which has unapplied mechanical resolution exercises and decontextualized to each area of professional training, being used for more than 20 years without any reformulation. The aim of this research is to elaborate, apply and validate a didactic unit contextualized to the teaching of trigonometry, with the intention of attuning the conception of professional formation and the program of the course in accordance with the SENAI methodology of Professional Education, in order to relate the reality experienced in students' practice with the concepts of curricular units. The present work used as theoretical contribution institutional documents and theoretical references that defend a contextualized teaching practice and sought to answer the question of research: what perceptions do the students report of their experiences in the process of accomplishing the proposed didactic unit? To answer this question, the professor-researcher adopted an interpretive and qualitative approach, making use of recordings, interviews and questionnaires that give methodological support to the research. The results, in turn, reveal the possibility of creating situations of learning trigonometric contents contextualized and applied to practical problems faced by future professionals in the area of mechanics, expressing significantly the need to update the materials used by the teaching institution in question.