O tratamento probabilístico da teoria cinética de colisões em livros de química brasileiros para o ensino médio

This paper presents and discusses an analysis of the approaches and the didactic treatment of the kinetic model of collision between particles in chemical reaction (collision theory model) presented by brazilian chemistry textbooks for the medium level. Our starting point at this search was the correct and scientific model for this theory which is based on random events, but most of all the books investigated does not consider this fact like an important and very precious didactic aspect. We utilized in the investigation the writing discoursive analysis technique.

As atividades de demonstração e a teoria de Vigotski: um motor elétrico de fácil construção e de baixo custo

The experimental demonstration is one of the traditional activities used in the ambit of the Science teaching and of the scientific divulgation. However, this activity has not been fully explored yet in the classroom, because teachers have faced considerable difficulties due to the lack of demonstration equipment. In this work we present the explanation of an easy and low-cost assembly of an electric motor, to be used in Physics classes in High School. In addition, we employed Vigotski’s theory to guide this experimental activity in the classroom.

Contribuições a uma teoria da democracia digital como suporte à formulação de políticas públicas

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Políticas de formação docente na Bahia:uma anállise a partir de pressupostos da Teoria Social de Habermas

Num contexto de mudanças amplas e céleres nos mundos do trabalho e da cultura, como se situam os professores frente às normas que regulam sua formação? Ao discutirmos esta questão, propomo-nos a colaborar com os debates sobre as políticas públicas, especialmente aquelas diretamente relacionadas à formação de professores de Ciências que atuam em determinada região no interior da Bahia, desvelando fatores que constrangem ou impedem a ação dos professores na configuração dessas políticas e apontando para outras possibilidades de formação docente. Para tanto, utilizamo-nos de dados de pesquisas acadêmicas, documentos, legislação e entrevistas realizadas com 15 docentes. Para a análise, apoiamo-nos em referenciais críticos, particularmente na teoria social de Habermas. Foi possível relevar a ausência do Estado em determinados aspectos da formação desses profissionais, bem como sua presença incisiva e sufocante em outros. A participação restrita dos docentes, como grupo afetado, na produção das políticas de formação demonstra que a integração social não tem se fundamentado na comunicação, mas em processos não linguísticos, principalmente por meio do poder estatal que abriga os ditames do sistema econômico. Finalizamos o texto, chamando a atenção para as possibilidades apresentadas pelo conceito de esfera pública para o apontamento de novas possibilidades formativas.

A teoria, a prática, o professor e a educação ambiental: algumas reflexões

The acceleration of economic and scientific development caused by the production system and mechanistic science, have created new power structures and new political and social problems, including environmental ones, consolidating a period of widespread crisis in different spheres of society. In this context, reflection about the major causes of environmental problems is necessary in the field of environmental education. Therefore, considering that the current environmental crisis is directly related to the mode and the devices of production of the capitalist system, initiatives on environmental education should reflect, from a historical and dialectical process, on what is advocated by capitalist society. Considering the various theoretical-practical concepts and approaches in environmental education, the principles of Critical Environmental Education can provide conditions to confront the structural crisis that we are facing, through the educational process. It is a political process of reflection and critical appropriation of knowledge, attitudes, values and behaviors that aims to contribute to build a sustainable society from the social and environmental points of view. We intend to articulate it through the theoretical formulations of Historical-Critical Pedagogy with the purpose of presenting a reflection that may contribute to a pedagogic response to environmental issues, especially regarding the formation of teachers who develop projects in schools. Thus, this present study intends to highlight the contributions of the philosophy of praxis in the formation of environmental educators, grounded in theoretical aspects of Critical Environmental Education.

Deficiência visual e educação científica: orientações didáticas com um aporte na neurociência cognitiva e teoria dos campos conceituais

The aim of this paper is to present an educational proposal with didactic and pedagogical orientations, to the Science Education for people with visual impairments. Then, we use as main reference, Gérard Vergnaud’s Theory of Conceptual Fields, joining with a translational focus, applying empirical results of Cognitive Neuroscience. Within this, we highlight the role of educational activities related with 'multisensory scientific literacy ', focusing on the linguistic triad: read, interpretation and textual representation. We hope this perspective, become in the future an important component on guidelines for composing a 'semiotic protocol' for Science Education. Realizing too, epistemological peculiarities, pedagogic and didactic specificities in this area, and, revealing such properties on the cognitive constructs, for science and technology education.

Investigação sobre a inclusão do episódio histórico da teoria genotípica de Wilhelm Ludwig Johannsen na formação inicial de professores e pesquisadores

This paper is part of a broader investigation on Epistemology of Biology carried out by a group of researchers from Cascavel/PR. It involves studies and research about biological thought on subjects such as the growing of the concepts of gene, genotype and phenotype. The aim of this research was to gather the undergraduate students of Biological Sciences’ views about the role played by the inclusion of a historical episode in the study group as a trigger for epistemological discussions and didactic reflections. Firstly, the students received Johannsen’s article “The genotype conception of heredity”, published in 1911 in the journal The American Naturalist, in which he proposed the concepts of genotype and phenotype, among other ones. After, there was a discussion held by group about the concepts proposed in the article taking into account the epistemological, historical and didactic aspects. Data collection occurred through the recording of the group discussions and individual interviews. The results suggest that the inclusion of this historical episode, enabled the participants to develop critical thinking through collective reflection on the meaning of biological knowledge in different contexts.