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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Utilizando processos geom?tricos da hist?ria da matem?tica para o ensino de equa??es do 2? grau

Dias, Graciana Ferreira 11 November 2009 (has links)
Made available in DSpace on 2014-12-17T14:36:18Z (GMT). No. of bitstreams: 1 GracianaFD.pdf: 2970581 bytes, checksum: c1ff770889898414c89539276036b80e (MD5) Previous issue date: 2009-11-11 / The present work had as principal objective to analyze the, 9th grade students understanding about the solutions of an equation of the 2? degree, using geometric processes of the History of the Mathematics. To do so, the research had as base the elaboration and application of a group of teaching activities, based on Jean Piaget's construtivism. The research consisted of a methodological intervention, that has as subjects the students of a group of 9th grade of the State School Jos? Martins de Vasconcelos, located in the municipal district of Mossor?, Rio Grande do Norte. The intervention was divided in three stages: application of an initial evaluation; development of activities‟ module with emphasis in constructive teaching; and the application of the final evaluation. The data presented in the initial evaluation revealed a low level of the students' understanding with relationship to the calculation of areas of rectangles, resolution of equations of the 1st and 2nd degrees, and they were to subsidize the elaboration of the teaching module. The data collected in the initial evaluation were commented and presented under descriptive statistics form. The results of the final evaluation were analyzed under the qualitative point of view, based on Richard Skemp's theory on the understanding of mathematical concepts. The general results showed a qualitative increase with relationship to the students' understanding on the mathematical concepts approached in the intervention. Such results indicate that a methodology using the previous student‟s knowledge and the development of teaching activities, learning in the construtivist theory, make possible an understanding on the part of the students concerning the thematic proposal / O presente trabalho teve como principal objetivo analisar a possibilidade de compreens?o, por parte de alunos do 9? ano, sobre a obten??o das solu??es de uma equa??o do 2? grau, utilizando processos geom?tricos da Hist?ria da Matem?tica. Para tanto, a pesquisa teve como base a elabora??o e aplica??o de um conjunto de atividades de ensino, baseado na teoria construtivista de Jean Piaget. A pesquisa consistiu em uma interven??o metodol?gica, tendo como sujeitos os alunos de uma turma de 9? ano da escola Jos? Martins de Vasconcelos, situada no munic?pio de Mossor?, Rio Grande do Norte. A interven??o foi dividida em tr?s etapas: aplica??o de uma avalia??o inicial; desenvolvimento de um m?dulo de ensino com ?nfase em ensino construtivo e a aplica??o da avalia??o final. Os dados apresentados na avalia??o inicial, ou diagn?stica, revelaram um baixo n?vel de compreens?o dos alunos com rela??o ao c?lculo de ?reas de ret?ngulos e resolu??o de equa??es do 1? e 2? graus, servindo para subsidiar a elabora??o do m?dulo de ensino. Os dados coletados na avalia??o inicial foram comentados e apresentados sob a forma de estat?stica descritiva. Os resultados da avalia??o final foram analisados sob o ponto de vista qualitativo, com base na teoria de Richard Skemp sobre a compreens?o de conceitos matem?ticos. Os resultados gerais mostraram um avan?o com rela??o ? compreens?o dos alunos sobre os conceitos matem?ticos abordados na interven??o. Tais resultados indicam que uma metodologia que leve em considera??o os conhecimentos pr?vios dos alunos e o desenvolvimento de atividades de ensino, apoiada em teoria construtivista, possibilita uma compreens?o por parte dos alunos acerca da tem?tica proposta
2

Investiga??o hist?rica nas aulas de matem?tica: avalia??o de duas experi?ncias

Bezerra, Odenise Maria 26 February 2008 (has links)
Made available in DSpace on 2014-12-17T15:04:50Z (GMT). No. of bitstreams: 1 OdeniseMB.pdf: 523472 bytes, checksum: 4c5d9b7ec084791f932f3572d11986e4 (MD5) Previous issue date: 2008-02-26 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / This study reflects on some procedural aspects about the development of mathematics learning from the experience with investigative activities concerning the resolution of second degree equation, which was tested a proposal for education, supported the use of texts in history of mathematics. The survey was conducted in two stages, taking the first-served basis for the second, which was carried out with a study group remainder of the first experiment. The intention was to investigate how the group participant, known as the study group, involved in the implementation of activities of research in mathematics, supported the use of the history of mathematics. Based on the results achieved during the study, it was possible to understand that the activities of research enable the development of students, range of learning mathematics and the development of skills and expertise for research as a vehicle for construction of their mathematical knowledge. This approach proposed research into the classroom is important, both for prospective teachers of mathematics and for students from elementary school, bringing a new phase for mathematical education that will come to schools / O presente estudo reflete sobre alguns aspectos processuais acerca do desenvolvimento da aprendizagem matem?tica a partir da experi?ncia com atividades investigativas, acerca da resolu??o de equa??o do 2? grau, na qual foi testada uma proposta de ensino, apoiada no uso de textos em hist?ria da matem?tica. A pesquisa foi realizada em duas etapas, tendo a primeira servido de base para a segunda, a qual foi realizada com um grupo de estudo remanescente da primeira experi?ncia. A inten??o foi investigar como o grupo participante, denominado como grupo de estudo, envolveu-se na realiza??o de atividades de investiga??o em matem?tica, apoiada no uso da hist?ria da matem?tica. Com base nos resultados alcan?ados no decorrer do estudo, foi poss?vel compreender que as atividades de investiga??o possibilitam o desenvolvimento dos alunos, alcance de aprendizagem matem?tica e o desenvolvimento de habilidades e compet?ncias para a investiga??o como ve?culo de constru??o do seu conhecimento matem?tico. Essa proposta de abordagem investigativa para a sala de aula ? importante, tanto para futuros professores de matem?tica quanto para estudantes de ensino fundamental e implicar? numa nova fase para a educa??o matem?tica que chegar? ?s escolas
3

Uma sequencia did?tica para o ensino da resolu??o da equa??o do 2. grau : adequa??o para o uso com professores

Macedo, Elaine Souza de 18 July 2011 (has links)
Made available in DSpace on 2014-12-17T15:04:57Z (GMT). No. of bitstreams: 1 ElaineSM_DISSERT.pdf: 886598 bytes, checksum: 7ef8596ff5cd48451e6de3947c852c6d (MD5) Previous issue date: 2011-07-18 / The present study aims to check whether the use of activities mediated by the History of Mathematics can contribute to improve the understanding of resolution the 2nd degree equation for teachers and undergraduates that reproduce methods of solving such equations, uncritically, without domain of the justifications for their actions. For this, we adapted a didactic sequence with activities that aims to cause a rediscovery of resolutive formula of 2nd degree equation through the method known as cut and paste. Finally, we presented the activity module containing the didactic sequence used during the study, as suggestion for use in the classroom, by the math teacher / O presente estudo tem como objetivo verificar se o uso de atividades mediadas pela Hist?ria da Matem?tica pode contribuir para a melhoria da compreens?o da resolu??o da equa??o do 2? grau para professores e licenciandos que reproduzem m?todos de resolu??o de tais equa??es, de maneira acr?tica, sem o dom?nio das justificativas de suas a??es. Para isso, adaptamos uma sequ?ncia did?tica com atividades que tem como prop?sito fazer com que haja uma redescoberta da f?rmula resolutiva da equa??o do 2? grau atrav?s do m?todo denominado corte e cole. Por fim, apresentamos o m?dulo de atividades contendo a sequ?ncia did?tica utilizada durante o estudo, como sugest?o para uso em sala de aula, pelo professor de matem?tica

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