151 resultados para Solução de problemas matemáticos
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In this paper we discuss the importance of a methodological perspective of solving problems as a sustaining process of teaching mathematics situated on the perspective of concept formation. Organizing a significant didactic situation for students imposes the need to study the interaction between them and the teacher and between them and their mathematical knowledge, learning environment in which the mere transmission of content gives way to contextualization, to historicizing and handling of topics from intuitive and everyday situations for the student. Thus, we understand mathematics as a fundamental language for the creation of theoretical thinking as a whole. We made use of documental analysis and classroom situations aiming at the use of instructional procedure related to the resolution of problems with the purpose of overcoming some representations about the process of teaching and learning mathematics which is strongly marked by imitative-repetitive algorithmic procedures. Considering mathematics as an investigation discipline, we point out renewal prospects for the curricula of this discipline, which are concrete in the movement of cultural action of the school itself as the cell generating discussion.
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Since the 1980s, problem solving has been recommended by international curriculum proposals for the teaching of mathematics. In Brazil, with the publication of the National Curriculum Guidelines in 1997, this trend was reinforced and became the central activity of the classroom. Troubleshooting is seen as an asset in the learning process of the student, providing a context for learning concepts, mathematical methods and attitudes. However, this methodological approach requires deeper research, especially for new teaches. This work aims at a further study in this subject and in the experiences with problem solving in the classroom of High School students. The ground basis for this was the Mathematical Transalpine Rally, a competition between classrooms that seeks to facilitate the problem solving within mathematics teaching, and through an autonomous and creative work, performed collectively. The results of this experience, as well as the contribuition for the student’s education are presented
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Nowadays environmental pollution can be identified as a major problem in developed and developing countries. This is the result of several factors, such as inappropriate use of natural resources, inficiente legislation and not ecological awareness. Moreover, many other procedures as incorrect use of chemicals still contributed to the worsening of the problem. In this work, we develop a working with the environmental ideals, aiming to contribute to the decomposition of organic material through decomposition of rhodamine in TiO2 thin films on a silicon substrate. The degradation performance was monitored with the aid of techniques such as atomic force microscopy, transmission electron microscopy, field emission gun scanning electron microscopy, Fourier transform spectroscopy, thermal and photocatalytic analyses
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A matemática está presente nas mais diversas atividades do nosso cotidiano. O interesse em realizar o Trabalho de Conclusão de Curso no âmbito da Educação de Jovens e Adultos/EJA, surgiu a partir do meu ingresso no Programa Institucional de Bolsa de Iniciação à Docência - PIBID no início do ano de 2010. O PIBID vem sendo desenvolvido em vários campi da Unesp, somente nos cursos de licenciatura e tem como financiadora a CAPES/MEC. No curso de licenciatura Plena em Pedagogia, o Programa EJA/PIBID Rio Claro atua na escola Municipal Celeste Calil, localizada em um bairro periférico, que tem como público alvo pessoas de baixa renda, alfabetizadas ou não. O trabalho que a cada dia vem sendo construído com as educandas me despertou muito interesse, principalmente com relação ao ensino da matemática, uma vez que a mesma está presente nas diversas esferas do cotidiano. Podemos acompanhar (observar) que as alunas já trazem consigo uma experiência de vida muito grandiosa com relação à solução de questões pertinentes a matemática. Para auxiliar na aprendizagem, recursos matemáticos vêm sendo introduzidos nas aulas, entre eles jogos, onde as educandas podem reviver situações cotidianas que, à primeira vista, facilita o processo de aprendizagem e resolução de problemas. O presente trabalho tem como objetivos fazer um levantamento de jogos matemáticos que poderão ser utilizados nas aulas da EJA, e também analisar o caderno de registros matemáticos do PIBID, no ano de 2010. Quanto à metodologia, buscam-se elementos na pesquisa qualitativa, bem como análise bibliográfica de jogos que foram levantados e também análise documental do caderno de registros do PIBID 2010, construído conjuntamente, pelo grupo de educandas e bolsistaseducadores
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Pós-graduação em Matemática em Rede Nacional - IBILCE
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Construction techniques with ruler and the compasses, fundamental on Euclidean geometry, have been related to modern algebraic theories such as solving equations and extension of bodies from the works by Paolo Ruffini (1765-1822), Niels Henrik Abel (1802-1829) and Evariste Galois (1811-1832). This relation could provide an answer to some famous problems, from ancient Greece, such as doubling the cube, the trisection Angle, the Quadrature of the Circle and the construction of regular polygons, which remained unsolved for over two thousand years. Also important for our purposes are the notions of algebraic numbers, transcendental and the criteria for constructability, of those numbers. The objective of this study is to reconstruct relevant steps of geometric constructions with ruler (unmarked) and the compasses, from the elementary to the outcome buildings, in the nineteenth century, considering those mentioned problems.
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Pós-graduação em Engenharia Elétrica - FEIS
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Pós-graduação em Engenharia Civil e Ambiental - FEB
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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The aim was to investigate the difficulties and limits of four future mathematics teachers to conduct classes in regencies approach of problem solving. Based on participation in a course this approach, undergraduates elaborated three didactic sequences, which were taught by the activity of conducting classroom discipline Supervised Curricular Training. After this work, participated in an individual interview to report what had developed in classroom. The results showed difficulties in the following aspects: in the elaboration of didactic sequences; in providing an environment for discussion of resolution strategies students. Furthermore, the data analysis showed limits related: the lack of space at the school teacher to allow implementation of lessons developed; lack of basic mathematical knowledge of the students.
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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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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)