963 resultados para Matemática - Estudo e ensino - Portugal


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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Pós-graduação em Matemática em Rede Nacional - IBILCE

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Pós-graduação em Matemática em Rede Nacional - IBILCE

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Pós-graduação em Matemática em Rede Nacional - IBILCE

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Esta pesquisa analisa a concepção do corpo a partir dos aspectos que explicitam suas implicações sobre as metodologias empregadas nas práticas de ensino em estudos biológicos como, por exemplo, a vivissecção, bem como sobre os efeitos observados nos corpos dos estudantes. Nossa pesquisa delimita o seu objeto de estudo em um recorte que considera a dinâmica de constituição do corpo em sua dimensão material, esta que se assenta nas condições biológicas do existir humano. Propusemos outra passagem pelo trânsito de territórios nos quais os nossos corpos se investem de simbolismo e de elementos oriundos do universo cultural. Esta passagem na metodologia da análise implica nossa condição de pesquisadores situados na fronteira que se desenha entre os estudos da Biologia, Filosofia e Psicanálise. Consideramos o corpo em sua constituição, mas analisamos os modos como esta base material vem sendo tratada nos processos de subjetivação da sociedade contemporânea. Assim, nosso recorte incide sobre o corpo que se faz no espaço que cada sujeito abre para as relações com a alteridade. Acrescentamos que ao optarmos pelo estudo sobre políticas de subjetivação a partir de suas implicações corporais, observamos o cuidado com este corpo que padece, não somente por um aspecto físico, compreendido como participante da ecologia da natureza, mas também como aquele que sustenta os sentimentos, emoções, compreendido como a ecologia dos ambientes grupais e o aspecto da constituição de si, compreendido como a ecologia do ambiente subjetivo.

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This study presents the results of a study on the development of the concept of force and their possible applications in physics teaching. The historical study has focused on Aristotelian natural philosophy, medieval theories of strength in impressed and on classical Newtonian mechanics. The Newtonian concept of force was also an object lesson of physics analyzed in this study. In this lesson, conducted in a preuniversity course, spontaneous conceptions or alternative conceptions of students about the concept of force proved very entrenched, resulting in studies on the Model Change on Conceptual and epistemological obstacles in view Bachelardian. The theoretical frameworks adopted led us to trace parallels between spontaneous conceptions revealed by the students and some views about the concept of force found in the study of history. The results show that while some old conceptions have been replaced by scientifically Newtonian concept of force, they are still present in the students' ideas and resist to changes even after the study of Newton's laws. Like main result shows that the history of science can be a great ally for the deconstruction of alternative conceptions, particularly when these concepts were previously presented and overcome the course of history of the development of a concept

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In this work, it was studied the effects of the experimentation in the physics teaching. Beginning from the theoretic reference and discussions, the objective was prove the efficiency of researches of this nature related to two main aspects of a class: The aroused interest in the students and the facilitating action on the understanding of the theory. For such objective, using the comparison, it was chosen two distinct classes, but the more similar possible, so that, in one of them, it was showed a tradition class, lectures and in another, a class using experimentation to contemplate the theory. To manage a way to rate these aspects, it was made a conceptual questionnaire, requiring only concepts rather than mathematics and equations, besides specific interviews to rate the opinion of the student related to each method. The observations in classes and of the reactions of the students also were of a big value to analysis. After the experimental class completed, it may analyze and conclude some positive points related to experimental methods: As for the opinion of the students, the approval was big, and the majority opined to this class as being “more interesting”. On the point of view of learning, it had a sensitive improvement of grades, but with more mature answers, deep and autonomous, if looking at a general vision

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This study shows new alternatives to the teaching of chemistry in high school and wants to be an aid to the teacher at the time of the planning of lessons and a way to help students improve their performance in this discipline. The central issue is the exploration of differentiated teaching strategies for a just end: improvement of education in chemistry. To reach the main point is to undertake a survey of the most important issues for students and teachers, and from there many teaching strategies are suggested to help in understanding the contents studied. The idea is to propose strategies that may be of interest to students of chemistry, stimulating the curiosity of wanting to know more about a certain content that is being studied in the classroom. This study shows that chemistry is not boring, is not as difficult as it seems, and everyone can indeed take pleasure in studying a world as real and so fascinating, if you understand the facts

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This research aims at examining the relationship between the performance of elementary school students Cycle I in problem solving and attitudes toward mathematics. For this, a research was conducted at a state school in the city of Bauru which was selected for convenience. Participants were randomly selected consisting of 75 students, of whom 21 were third years and 57 were of three classes of fifth year. The instruments used for data collection were: a informative questionnaire to characterize the students in age, grade, favorite subjects and the least liked, among others, an attitude scale, Likert type, to examine the attitudes toward mathematics; a interviews with 11 selected students according to scores on the attitudes and mathematical problems to be solved through the method of thinking aloud. The results showed that the major difficulties encountered by students in solving problems were: to understand the problems, formalizing the reasoning, recognize in the problem the algorithms needed for its resolution, make calculations with decimal numbers, do combinatorics, using the sum of equal portions instead of multiplying, self-confidence and autonomy in what he was doing, and others; participants with positive attitudes towards mathematics showed greater confidence to solve problems as well as a greater understanding on what was required by them, but were not detected significant relation between the attitudes and performance, since it was unfavorable

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Todos nós sabemos o quanto é importante uma base de conhecimentos sólida, para que, posteriormente, quando forem ensinados os novos conceitos, os alunos possam fazer relações com o conhecimento que já possuem, com maior facilidade. Verificamos no Ensino Médio a grande dificuldade dos alunos têm para o aprendizado de Física, além da idéia pré-concebida que eles possuem de que é uma disciplina de difícil compreensão. Porém, essas dificuldades, em sua grande parte são advindas da compreensão dos textos de e do desenvolvimento de cálculos, ou seja, essas dificuldades provêm das disciplinas de Língua Portuguesa e de Matemática. Com base na situação descrita acima, o presente trabalho tem o objetivo de buscar alternativas para este problema, trabalhando desde a base destes conhecimentos, através de atividades desenvolvidas com o primeiro ciclo do Ensino Fundamental. Dessa maneira, levamos para escola pública de um bairro periférico de Presidente Prudente, mais especificamente, para a 3ª série do ensino fundamental, uma atividade com conceitos de Física para desenvolver com as crianças, estimulando o raciocínio das mesmas e a incentivando a busca por soluções para situações-problemas, utilizando-se para isso das idéias propostas pelo Construtivismo, fundamentadas na epistemologia de Piaget. Este trabalho sempre visou a valorização do conhecimento prévio desses alunos e estabelecendo relações com o seu cotidiano

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Pós-graduação em Educação Escolar - FCLAR

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This work presents the results of a study on the use of experimentation in physics teaching, presenting a survey on the use of this strategy in public high schools in the region of São José dos Campos. Data collection was carried out in schools by means of questionnaires prepared for physics teachers and students from three grades of high school. Data were obtained in eighteen schools distributed in the city of São José dos Campos (two in the central region, in the west, three on the east side, seven in the north and five in the south), a school in the district of Sao Francisco Xavier and a school in the town of Monteiro Lobato. Thus, data from 20 schools, 610 students and 20 teachers were analyzed. Among the main results, we highlight that over 80% of the students said that there is no physics lab at the school where they study, and less than 1% declares that uses laboratory weekly. We note that there is a laboratory in 25% of the schools in the northern region and 10% or less of the other schools. According to the students the proposition of the experimental activities by teachers is rare - only three schools in East Side the options sometimes and always exceeded the number of responses experimental activities are never proposed. We had 60% of the teachers who reported using the curriculum of the state of São Paulo to propose activities to students, and half of the teachers said they did not have classes experimental physics classes in initial training or had them in sufficient quantity to support the use of this feature in practice

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Pós-graduação em Matemática em Rede Nacional - IBILCE