1000 resultados para História da Ciência,


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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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The performance of investigative activities with lessons in teaching Science and Chemistry has promoted meaningful learning of scientific knowledge. This study aimed to develop the links between higher education for research and skills argumentative, aimed at building the scientific concept on combustion of the candle in a closed container, for students from two classes of 3rd year of high school, two city schools Bauru, São Paulo. We decided to do a short course investigative, to respond argumentative skills which are developed during the minicourse using investigative activities, knowledge from the history and philosophy of science. The results were gathered from analysis of video recordings of episodes of the short course in both the groups, to produce a higher rate of use of argumentative skill, which were classified into categories according to the prior knowledge of the subject, 'factual knowledge' , 'understanding of concepts' and 'reasoning and analysis.' From the information obtained, it was found that both the teachers and the students were consistent in their actions, and that the activity of reasoning is key to learning. Thus, one can realize that knowledge is not acquired all at the same time, each individual depends on the mediation of the teacher in order to reach different design more appropriate teaching and investigative linked with the argument can be the key tool to acquire this knowledge

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We report here some outcomes of a research related to a didactical experience aiming to integrate the History of Science to the Physics Teaching, taking as background the historical development of the gravitational attraction. The research, of qualitative approach, is a case study and it was carried out in a sample of eleven students belonging to an undergraduate physics program (called licenciatura in Brazil) designed to from High School physics teachers in a São Paulo State Public University. We tried initially to reveal prospective teachers’ conceptions in order to provide a prepare that was used to guide the activities from the reality’s diagnosis. The aim was to promote discussions on the existence and persistence of alternative conceptions, on the historical evolution of the subject gravitational attraction, through readings and debates of texts contemplating recent subjects on the Science Education research, in order to generate dissatisfaction with traditional teaching models. The future High School physics teachers were asked to construct their own teaching proposal, through the development, in real situations, in a High School, of a minicourse based on: debates and synthesis developed in University classroom, the History of the Science and the student’s alternative conceptions. In this paper we will analyze future teachers’ alternative conceptions, the development of the course proposed, and details of the mini-courses taught by the prospective teachers in real situations, among High School students, its coherence and the posture changes observed in them.

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Nowadays it is increasingly required insertion History of Science on content to be worked in education, which raises many doubts and difficulties on the teachers did not have that content in their initial training. This work results from a qualitative empirical study aimed to investigate how a teacher of Biology and Science in a public school in the city of Bauru - SP was not in their initial training courses relating to the History of Science, mobilizes their knowledge to enter such an approach in their teaching practice. In the research methodology used as its theme the history of DNA present in the materials and also conduct open interviews and field notes to identify the knowledge involved in teaching practice and was adopted as the theoretical framework of Maurice Tardif’s Docent Knowledge. The results showed that even with difficulties arising from gaps in initial training, the teacher resorted to their experiential knowledge to meet these needs in addition to appropriate knowledge from the programs and textbooks, but its shortcomings make it difficult to analyze more critically. Thus, these data lead us to a reflection on the role of textbooks for these teachers is the process by which the consolidation of the knowledge they constructed.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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This study aimed to discuss the recent contributions of History of Science to theteaching of chemistry. The theme of the teaching unit was on the accident of cesium-137 in Goiânia ? Goiás, Brazil (1987). This was a qualitative study in which researcherand professor use the methodology of teaching on research. Thus, students should seekinformation, organize the data collected and establish relationships. Students producedposters in an exhibition at the school on the twentieth anniversary of the accident.Results demonstrated the importance of this resource. It was possible to exploit theabundance of detail and illustrations utilized what themes they students considerimportant and which they exploited. A poster exhibition on the theme indicated thestrong interest of students to participate in all activities proposed. The study alsorevealed the importance of using elements of the History of Science in ChemicalEducation and its relationship to the daily life of students.Key words: history of science; radioactivity; cesium-137

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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This paper aims at analyzing the history of science content of three general chemistry textbooks used in Brazilian universities: the translations of Kotz and Treichel's Chemistry & Chemical Reactivity, Atkins and Jones's Chemical Principles, and Garritz and Chamizo's Química. Results revealed different trends for the inclusion of history of science in chemistry teaching. Kotz & Treichel and Atkins & Jones used history mainly as curiosity and ornament. Garritz & Chamizo adopted the historical approach as one of the organizing axis of their textbook. Nevertheless, the historical content of the three textbooks may be criticized from current historiographical standpoint.

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Este trabalho analisa os seis livros didáticos de química indicados pelo Programa Nacional do Livro Didático para o Ensino Médio em 2007 (PNLEM 2007), no que se refere a seus conteúdos de história da ciência. Para isso, partiu-se do instrumento de análise desenvolvido por L. Leite (2002), que foi adaptado para a presente investigação. Os resultados obtidos indicam, como tendência geral, que a história da ciência é apresentada nos livros didáticos de maneira linear e superficial, constando, sobretudo, de nomes e datas. Dessa maneira, concluímos que os conteúdos de história da ciência desses livros não contribuem para que os alunos desenvolvam uma imagem do empreendimento científico condizente com os objetivos educacionais da atualidade.

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MEDEIROS, A. L.; VANTI, Nadia. Vannevar Bush e as matrizes discursivas de As we may think: por uma possível história da Ciência da Informação. Informação & sociedade:Estudos. João Pessoa, v. 21, p. 31-39, 2011

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Acompanha: Dupla-hélice: a construção de um conhecimento

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MEDEIROS, A. L.; VANTI, Nadia. Vannevar Bush e as matrizes discursivas de As we may think: por uma possível história da Ciência da Informação. Informação & sociedade:Estudos. João Pessoa, v. 21, p. 31-39, 2011