Uma proposta de ensino de relações trigonométricas em ângulos notáveis por meio do material concreto prédio trigonométrico
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Tipo
Relato
Classficação
Nível teórico
Data
2021
Título do Períodico
Revemat: Revista Eletrônica de Educação Matemática
ISSN
1981-1332
Página(s)/e-location
1–17
Idioma(s)
pt, en
Fonte
Fonte
Florianópolis
16
1
16
1
Resumo
É importante que o professor promova o desenvolvimento de uma aprendizagem ativa e significativa, buscando métodos que permitam ir do concreto ao abstrato. Neste sentido, foi planejado e aplicado uma proposta de aula envolvendo o material concreto denominado Prédio Trigonométrico. O objetivo deste artigo é refletir sobre essa prática docente a fim de apresentar possibilidades para o professor de matemática no uso desse material e da experimentação no ensino de trigonometria. A proposta utiliza da manipulação do objeto e de um roteiro de aplicação para obtenção de resultados do seno, cosseno e tangente dos ângulos notáveis. Após a atividade, foi aplicado um outro questionário perguntando sobre a efetividade do material para os alunos. Em grande maioria, os alunos elogiaram a aplicação, mostrando que foi um facilitador em sua aprendizagem. Além disso, percebemos que os alunos foram capazes de abstrair resultado como o valor das relações trigonométricas para o ângulo de 90°. Com isso, notamos um potencial na aplicação de tal metodologia, que pode auxiliar o professor no ensino de trigonometria no Ensino Fundamental e Médio
It is important that the teacher promotes development of an active and meaningful learning, searching for methods that aim to go from the concrete to abstract. In thisregard, a class proposal involving a concrete material called Trigonometric Building was planned and applied. The objective of this article is to reflect on this teaching practice in order to present possibilities for the mathematics teacher in the use ofthis material and experimentation in the trigonometry teaching. The proposal uses object manipulation and an application roadmap to obtain sine, cosine and tangent of the remarkable angles results, so that, through questioning, develop results related tothe values of this relationship. After the activity, another questionnaire was applied asking about the effectiveness of the material for the students. The vast majority of students praised the application, showing that it was a facilitator in their learning. In addition, we noticed that the students were able to abstract the result as the value of the trigonometric relations for the 90° angle. With that, we see a potential in the application of such methodology, which can assist the teacher in teaching trigonometry in Elementary and High School
It is important that the teacher promotes development of an active and meaningful learning, searching for methods that aim to go from the concrete to abstract. In thisregard, a class proposal involving a concrete material called Trigonometric Building was planned and applied. The objective of this article is to reflect on this teaching practice in order to present possibilities for the mathematics teacher in the use ofthis material and experimentation in the trigonometry teaching. The proposal uses object manipulation and an application roadmap to obtain sine, cosine and tangent of the remarkable angles results, so that, through questioning, develop results related tothe values of this relationship. After the activity, another questionnaire was applied asking about the effectiveness of the material for the students. The vast majority of students praised the application, showing that it was a facilitator in their learning. In addition, we noticed that the students were able to abstract the result as the value of the trigonometric relations for the 90° angle. With that, we see a potential in the application of such methodology, which can assist the teacher in teaching trigonometry in Elementary and High School
Descrição
Palavras-chave
Educação matemática, Ensino, Trigonometria, Material concreto, Mathematics education, Teaching, Trigonometry, Concrete material
Citação
GONÇALVES, Gustavo; RIBEIRO, Eduardo Boff; KAROLESKI, Gregor Dimitri Teixeira; MELLO, Kelen Berra de. Uma proposta de ensino de relações trigonométricas em ângulos notáveis por meio do material concreto prédio trigonométrico. Revemat: Revista Eletrônica de Educação Matemática, Florianópolis, v. 16, n. 1, p. 1–17. 2021. https://doi.org/10.5007/1981-1322.2021.e76836. Disponível em: https://periodicos.ufsc.br/index.php/revemat/article/view/76836/45760. Acesso em: 2023-09-18