Licenciatura em Química
URI permanente desta comunidadehttps://ri.ifam.edu.br/handle/4321/740
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5 resultados
Resultados da Pesquisa
Item A utilização de indicadores naturais ácido-base no ensino de ciências para alunos do 9°ano do ensino fundamental em uma escola estadual(2023-12-05) Pantoja, Raiany do Nascimento; Melo, Ana Claudia Rodrigues de; http://lattes.cnpq.br/5944321508964046; Melo, Ana Claudia Rodrigues de; http://lattes.cnpq.br/5944321508964046; Villani, Fernanda Tunes; http://lattes.cnpq.br/7767105531688783; Almeida, Luene Cristina Santos de; http://lattes.cnpq.br/7134813091920240Natural pH indicators consist of extracts or dyes extracted from vegetables, using water or ethanol. However, those responsible for enabling the color change in acidic solutions, such as vinegar and basic solutions, such as bleach, are anthocyanins. Pigments found in vegetables, which allow this change every time an acidic or basic product comes into contact with the indicator solution. Therefore, using these natural indicators to contextualize the subjects of acid and base allows the science teacher to work on the concepts in an interactive way with the students, not restricting themselves to the use of laboratory materials or substances. In this context, the present work aims to apply an experimental lesson in the classroom, using the natural indicators of red onion (Allium ceppa L.), turmeric (Curcuma longa L.) and pitaya (Hylocereus polyrhizus) to work on the subject of acid base with 9th year elementary school students. Therefore, this research is a descriptive research, with a qualitative-quantitative approach, where the experiment and questionnaires (pre-test and post-test) were applied to a 9th year elementary school class at a state public school. located in the city of Manaus–AM. The results of the analysis of the pre-test questionnaire showed that the theoretical class alone was not enough for students to learn acid and base, as students were only able to filter some parts of the subject presented in the theoretical class. Therefore, it is necessary to use practical classes with natural indicators to better understand the subject. Due to the facts mentioned, it is concluded that it is important to use the practical class with natural indicators, to contribute to students' learning about the acid and base content.Item Experimentação no ensino de química na educação básica: uma análise das produções acadêmicos do EDEQ(2023-12-04) Silva, Laila Yasmim dos Santos; Salazar, Deuzilene Marques; http://lattes.cnpq.br/4519799169077909; Salazar, Deuzilene Marques; http://lattes.cnpq.br/4519799169077909; Pereira, Zilanir Carvalho; http://lattes.cnpq.br/0153883512211178; Mota, Keila Neves; http://lattes.cnpq.br/0818006410878490The concept of Science is intricate, linking to the organization of natural phenomena and theories of origin. These notions stem from popular knowledge, beliefs, and ongoing research, continually evolving. Experimentation, rooted in history, has played a crucial role in consolidating the natural sciences. This study examines how the productions of the Meeting on Debates about Chemistry Teaching (EDEQ) between 2021 and 2023 address experimentation, exploring methodological and pedagogical dimensions, identifying conceptions, and typologies of experimental practices. Experimentation, considered a complex approach rather than merely a practical activity, stands out as an essential part of chemistry education, transcending the traditional view of an isolated tool.Item Atividades experimentais no ensino de química: o olhar dos estudantes em uma escola pública de Manaus(2022-06-29) Simão, Karolyn Rabech Silva; Magalhães, Mayara Letícia Paiva; http://lattes.cnpq.br/8774951816729767; Magalhães, Mayara Letícia Paiva; http://lattes.cnpq.br/8774951816729767; Melo, Ana Cláudia Rodrigues de; http://lattes.cnpq.br/5944321508964046; Mendonça, Rogete Batista e Silva; http://lattes.cnpq.br/5623350701700106This research seeks to contribute to the improvement in the teaching and learning of chemistry, through the use of experimental activities with students from the 1st year of high school in a public school in Manaus. It seeks, therefore, to provide an understanding of chemical phenomena through experimental activities, perform an analysis of the students' view of the practice of these phenomena in the classroom and present a proposal for the use of simple experimental activities with low-cost materials. The research is characterized as a descriptive and exploratory study, with a qualitative and quantitative approach. As instruments of data collection, questionnaires were applied and the data were expressed in graphs. As a result of this research we can report how experimentation in teaching is of fundamental importance for meaningful learning, awakening a strong interest among students, and being one of the fundamental tools for the teaching-learning process. These results were evidenced by the students' view of the experience of participating in the proposed practical class.Item O ensino de química: uma análise sobre a importância da experimentação nas aulas de química do ensino médio(2022-12-13) Silva, Celyane Gabriele da Silva e; Alves, Edilson Gomes; http://lattes.cnpq.br/0914810895785401; Alves, Edilson Gomes; http://lattes.cnpq.br/0914810895785401; Ferreira, Danielle Cristina Oliveira; http://lattes.cnpq.br/3971794341049346; Barros, Maxiliano Batista; http://lattes.cnpq.br/5680339300688041The following research shows an analysis about the value to introduce experimental chemical class joint of contente presentes into the classroom to create a connection with theory and practice, where the teacher can show the bond between study approached with a daily students class. The experimentation in the process of teaching-learning comes often used to show one science and/or chemistry less absent for who is learning, the practice classes works as visualization method and testify the theory and concepts as support for cheer up and excite the students turning something such attractive and which make more students cleaver in to the process of investigation. Heading this goal research, we aim for the main difficulties faced for the teacher in the execute process practice in their classroom, and also na outlook of students about the practice class of chemistry instruction. This research has explorer feature with emphasis on qualitative analysis. It was used as the methodology a quis for the students of a public high-school in Manaus, where was asked about their ideas about experimental class and leaving their opinion for those classes. Many schools presente a lack of solid place and materials for the experiments practice, by the way many teachers talk about the lack of time for for this kind of exercise and the crowded classroom. However, we can determine that for a good mode to get concentrate students to have a teaching process is because of effectiveness of experiments which can bring more easily to the classroom and reply at home, mainly in the application of experiments with low cost materialsItem A experimentação no ensino de química: reflexões a partir dos trabalhos do ENEQ(2021-12-16) Barros, Dorvanei Maciel; Lira, Wallace; http://lattes.cnpq.br/7834505234728150; Lira, Wallace; http://lattes.cnpq.br/7834505234728150; Herculano, Ricardo de Almeida; http://lattes.cnpq.br/4506729004612039; Ferreira, Danielle Cristina Oliveira; http://lattes.cnpq.br/3971794341049346This monograph addresses the theme of experimentation in teaching chemistry. We started with the following questioning: how is experimentation in high school chemistry debated at the National Meeting of Chemistry Education (ENEQ) in the period from 2012 to 2018?. Included in this study were theoretical discussions and dialogues on experimentation in teaching subsidized by Chassot (2003), Trevisan (2008) and Maldaner (2003). The general objective was to analyze the studies related to experimentation in high school chemistry. To achieve this general objective, we discussed the way experimentation is worked on in high school chemistry and analyze how experimentation is discussed in the articles published in the thematic axis Experimentation in Teaching in ENEQs from 2012 to 2018. The corpus The study was composed of the minutes of the ENEQs as documents forged by researchers, professors and scholars in the field of chemistry education. In the analysis within the theme, it was found that of the 106 selected works, 27% contemplated the approach of experimentation by demonstration, 21% by verification and 52% by investigation. The study requires continuing investigation of experimentation in teaching chemistry to understand the effectiveness of each experimentation approach in the high school context.