POE (PREDICT–OBSERVE–EXPLAIN) TECHNIQUE FOR CONCEPTUAL UNDERSTANDING ABOUT CHEMISTRY AND MATHEMATIC APPLIED TO PRESERVATION OF THE ENVIRONMENT

• Autor(a) principal: Yamaguchi, Klenicy Kazumy de Lima
• Data de Publicação: 2020
• Outros Autores: Araújo, Elzilene Aquino
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista Reamec
• Texto Completo: https://periodicoscientificos.ufmt.br/ojs/index.php/reamec/article/view/9619
• topic: Transversally; Chemistry teaching; Coari; Transversalidade. Ensino de Química. Coari.

This work aims to use the Chemistry and Mathematics subject an intervention activity in the elaboration of handmade soap to raise awareness about the preservation of the environment. The methodology used addressed applications of the constructivist concept POE (prediction-observation-explanation) in order to encourage students to expose their previous knowledge and then apply them in a multidisciplinary way. The activities were carried out at Maria Almeida do Nascimento School in Coari city / Brazil, in a class of the 2nd year of high school. The activities were divided into 5 stages: Application of the initial questionnaire, lecture, experimental activity and discussion with presentation of results and application of the final questionnaire. The use of the cross-cutting theme about the environment in chemistry teaching allowed students to understand the application of theoretical material in a broader panorama. One can talk about the use of pollutant material and the possible consequences for the rivers, as well as the alternatives for using this material. There was a greater awareness of the importance of the environment and the application of knowledge of chemistry and mathematics. The students were able to perform stoichiometric calculations to elaborate the handmade soap and were able to visualize the esterification reactions present in the methodology.