Chemistry Lessons
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. ARGUMENTAÇÃO EM AULAS DE QUÍMICA: ESTRATÉGIAS DE ENSINO EM DESTAQUE
Research in the area of science teaching has highlighted the importance of using argumentation in the classroom, as well as preparing teachers to undertake and conduct activities of this nature. In order to bring elements that contribute to the progress of discussions about the subject, we investigated implementing and developing two teaching strategies (lud
Quím. Nova. Publicado em: 2020-09
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2. Licenciandos em química e argumentação científica: tendências nas ações discursivas em sala de aula
School science teaching has traditionally been focused on the content of science. However, recent debates about science education emphasize the importance of the nature of science and the process of argument. In order to change the emphasis in teaching science to incorporate argumentation, teachers need to adopt more dialogic approaches that involve students
Quím. Nova. Publicado em: 2016-05
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3. INNOVATIVE USE OF A TABLET DEVICE TO DELIVER INSTRUCTION IN UNDERGRADUATE CHEMISTRY LECTURES
This report describes a simple, inexpensive and highly effective instructional model based on the use of a tablet device to enable the real-time projection of the instructor's digitally handwritten annotations to teach chemistry in undergraduate courses. The projection of digital handwriting allows the instructor to build, present and adapt the class content
Quím. Nova. Publicado em: 2015-05
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4. A teoria de pearson para a disciplina de química orgânica: um exercício prático e teórico aplicado em sala de aula
We report a didactic experience in teaching Pearson's theory (HSAB) to graduate students in organic chemistry. This approach was based on teaching students how to use computer programs to calculate frontier orbitals (HOMO-LUMO). The suggested level of calculation was a semi-empiric PM3, proving to be efficient for obtaining robust and fast numerical results
Quím. Nova. Publicado em: 2014
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5. Determinação potenciométrica da concentração micelar crítica de surfactantes: uma nova aplicação metodológica no ensino de Química
The participation of the students in the planning, execution and discussion of experimental results is important for the valuation of the role of them in the construction of the chemical knowledge implicited in the approach between education and research. This work relates either the construction of selective membrane electrodes for surfactants and its appli
Química Nova. Publicado em: 2009
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6. O uso do tempo e das práticas epistêmicas em aulas práticas de química
Embedded in a tradition which takes the contributions of socio-cultural theory in the analysis of the teaching and learning processes, linking up the contributions of Vygotsky and Bakhtin, this study seeks to identify: (i) How the time is used in practical classes, by the students and the teacher (ii) the development, by students, of epistemic practice (Sand
Publicado em: 2008
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7. O papel da experimentação no estudo do solo através do ensino de química: relações entre ensino e aprendizagem numa perspectiva construtivista / The role of experimentation in study of Soil through chemistry teaching: relationship of teaching and learning within constructivist perspective
The syllabus structure of agrarian technical teaching is characterised by excessive fragmentation of knowledge where a complete separation between the secondary school and professional teaching occurs leading to a difficulty in the development of the students capacity of relating concepts between the disciplines. This study had as objective the evaluation of
Publicado em: 2006
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8. Utilização de modelos moleculares no ensino de estequiometria para alunos do ensino médio.
The lack instructional materials for science teaching is a common problem in Brazil, and concerning to chemistry teaching in particular this problem can be observed even in more developed countries. Although molecular models are one of the few materials available for chemistry teaching, they have been hardly used, and this application has been restricted to
Publicado em: 2005
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9. Interações sociais em aulas de química: a conservação de alimentos como tema de estudos / Interações sociais em aulas de química: a conservação de alimentos como tema de estudos
Apesar do crescente interesse sobre as práticas discursivas em aulas de ciências, considero que ainda conhecemos pouco sobre o processo de significação em aulas de química. Nesse sentido, meu objetivo na presente dissertação foi analisar, a partir de um enfoque histórico-cultural, o papel de diferentes vozes na construção de significados em aulas d
Publicado em: 2005
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10. Aula de quimica : discurso e conhecimento
This study aims at the understanding of some relationships between chemical knowledge and discourse. Taking as points of departure the contributions of the historic cultural perspective, it analyses discursive moments taken from a General Chemistry class at a brazilian public highschool. The study s main question is related to the actual conditions of knowle
Publicado em: 1999