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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.
11

Papel da compreensão leitora na resolução de problemas matemáticos

Morais, Maria das Dores de 26 August 2010 (has links)
Made available in DSpace on 2017-06-01T18:24:33Z (GMT). No. of bitstreams: 1 dissertacao_maria_das_dores.pdf: 2066642 bytes, checksum: 369637440f00811a18e241983503000a (MD5) Previous issue date: 2010-08-26 / Some estimatory instruments, applied to Brasilian basic teaching (BS) students, have shown up displayed that they present a weak performance in mathematics situations problems solution. According to indicators, the students have concluded their BS fourth series, with serious deficiencies regarding to mathematics specifical contents. As we search justifications for these existing gaps in these contents apprehension, understanding, there is a propensity to ascribe most of these failures to methodologies based on traditional know-hows techiniques and methods. Aiming at changing this frame situation, some school curricula reformulations improvements point out to an approaching founded, based on the student exposure to situations-problems, stimulating, encouraging the student, the learning people proposing solutions based on existing rapports between mathematical knowledge, the currently presented content and day by day concrete situations. However, his/her performance evaluations results on Mathematics have revealed displayed that the student con show out manifest some difficulties to understand the situations-problems presented to him/her, which denotes that his/her difficulties can go beyond the mathematical knowledge absence dack. This work aimed at researching whether the students reading skill competency interferes in the mathematics problems enuntiates comprehension. For this research performance, we have used employed beyond the situations-problems solution methodological principles, theoretical considerations regarding to reading, enlarged added- by the textual linguistics contributions. In order to achieve attain this work aims, we have fulfilled an investigation in a BS fourth Series shift, belonging to Jaboatão dos Guararapes/PE `S teaching municipal network. Regarding to the methodology, we have accomplished two activities in order to evaluate the students reading comprehension and another one in order to verify these difficulties as for the mathematical problems solution. We have also employed Cloze´s Test of which result was used in order to put together the students of the groups were then characterized as for the reading comprehension and mathematical problems solution. From each group habilities, skills analysis, we were able observing that the low performance, presented in the problems solution is connected only with straightly mathematical nature limitations, but there is a strict relation with low skill, competency in observed reading / Alguns instrumentos avaliativos, aplicados aos alunos brasileiros do ensino fundamental (EF), têm mostrado que eles apresentam um fraco desempenho na resolução de situações -problemas de matemática. Segundo os indicadores, os alunos têm concluído a 48 série do Ensino Fundamental (EF) com sérias deficiências em relação aos conteúdos específicos de Matemática. Quando procuramos justificativas para as lacunas existentes na apreensão dos conteúdos da Matemática, existe uma tendência a atribuir grande parte do fracasso dos alunos às metodologias baseadas em técnicas e métodos tradicionais. Visando a mudar o quadro, reformas curriculares apontam para uma abordagem baseada na exposição do aluno a situações-problemas, estimulando o discente a propor soluções com base nas relações existentes entre o conhecimento matemático, o conteúdo correntemente apresentado e situações concretas do dia-a-dia. Contudo, resultados de avaliações de desempenho de alunos no que diz respeito à Matemática têm revelado que o aluno pode demonstrar dificuldades para compreender as situações-problemas a ele apresentados, o que indica que as dificuldades podem não se limitar simplesmente à falta de conhecimento matemático. O presente Trabalho teve como objetivo investigar se a competência leitora dos alunos interfere na compreensão dos enunciados dos problemas de Matemática. Para o desenvolvimento da Pesquisa, utilizamos, além dos princípios metodológicos de resolução de situações-problemas, considerações teóricas sobre a leitura, acrescidas às contribuições da Lingüística Textual. Para alcançarmos os objetivos do Trabalho, realizamos uma investigação em uma turma de quarta série do EF numa escola municipal de Jaboatão dos Guararapes- PE. Quanto à metodologia, foram realizadas duas atividades para avaliar a compreensão leitora dos alunos e outra para verificar as dificuldades desses alunos quanto à resolução dos problemas matemáticos. Também foi empregado o Teste de Cloze, cujo resultado foi utilizado para agrupar os alunos. Os grupos foram então caracterizados com relação entre a compreensão leitora e à resolução dos problemas matemáticos para avaliarmos a relação entre a compreensão leitora e a resolução dos problemas. A partir da análise das habilidades de cada grupo, pôde-se observar que o baixo desempenho apresentado na resolução dos problemas não está ligado apenas a limitações de cunho eminentemente matemático, mas há uma relação com a baixa competência em leitura observada
12

Challenges of Grade 6 learners' experience when solving mathematical word problems

Sitsula, Tshisikhawe 19 December 2012 (has links)
MEDSED / Department of Maths, Science and Technology Education
13

An investigation into undergraduate student's difficulties in learning the bivariate normal distribution : a case of a Kenyan university

Onyancha, Nyambane Bosire 03 1900 (has links)
The low grades that students score in some statistical units in Kenyan universities is of great concern and has evoked research interest in the teaching of some of the units and the students’ learning of the statistical content. The aim of the study was to investigate the difficulties undergraduate students experience in the learning of bivariate normal distribution in a Kenyan university. The research also aimed to answer the following research questions on the difficulties undergraduate students encounter in the learning of bivariate normal distribution. The first research question was based on the reasons why students find learning of bivariate normal distribution difficult and the second research question was to find the reasons why students experience such difficulties in learning bivariate normal distribution. The target population for this study included lecturers teaching statistics in the university, and second- and third- year students enrolled or who have previously completed the probability and statistics III unit, where the bivariate normal distribution content is covered. In selecting students for the study, the simple random sampling technique was employed while convenient sampling was used to select lecturers who participated in the study. A mixed methods design was adopted for this study where both quantitative and qualitative data was collected. A total of 175 students and six lecturers participated in this research study. All students who participated in the study did a bivariate normal distribution test (Appendix 1) designed by the researcher and then filled in a questionnaire (Appendix 2). The lecturers who participated in the study filled in an open-ended questionnaire (Appendix 3). The results showed that undergraduate students have difficulties in learning bivariate normal distribution. This is because most of them could neither state the bivariate normal distribution nor solve any of the application questions on the content. The students find it difficult to learn and comprehend the bivariate normal distribution equation with its many parameters and constants of the two random independent variables. The results also showed that students could not state the normal distribution equation nor could they solve questions on the normal distribution, which forms the foundational knowledge required for effective learning of the bivariate normal distribution content. ii Based on the results, the study recommended that emphasis should be placed on the basic and foundational knowledge of the normal distribution content and its applications before teaching bivariate normal distribution in probability and statistics III. In addition, it is recommended that all students should be involved in the learning of basic content to enable them to understand all parameters and constants in the equations and their applications. The study also recommends that lecturers revise the foundational knowledge and content related to the bivariate normal distribution before introducing and teaching the bivariate normal distribution content. This study also recommends that the university should consider a change of curriculum by teaching the bivariate normal distribution, as an introductory course to the unit under the multivariate distributions in statistics, in third year of the students’ studies. ; ; / Mathematics Education / M. Sc. (Mathematics Education)
14

Análise das dificuldades na resolução de problemas matemáticos por alunos do 5º ano do ensino fundamental / Analysis of the difficulties in solving mathematical problems by students of the 5th year of elementary school

Araujo, Natália Keli Santos 31 March 2015 (has links)
A presente dissertação é um estudo realizado sobre as dificuldades apresentadas pelos alunos do 5º ano do Ensino Fundamental ao resolver problemas de Matemática. Tendo como referenciais teóricos Polya, Dante, Krulik, Onuchic e Allevato, Smole, dentre outros. A coleta de informações foi realizada em duas turmas do 5º ano, sendo uma da rede pública e outra da rede privada. Os instrumentos da pesquisa incluíram a aplicação de um teste diagnóstico, contendo quatro diferentes tipos de problemas de aritmética, e entrevista de explicitação registrada em áudio, baseada no método clínico de Piaget, com três alunos de cada turma. Como base foram identificadas no teste diagnóstico quatro categorias de análise: dificuldades para compreender o enunciado do problema, dificuldades em uma etapa do procedimento, dificuldades por desconhecimento do conteúdo e dificuldade conceitual das operações básicas. Através da análise dos dados foi possível identificar quais as dificuldades dos alunos para a resolução de problemas de matemática e também compreender como as crianças pensam e agem ao responder diferentes tipos de problemas.
15

Solução de problemas : relações entre habilidade matematica, representação mental, desempenho e raciocinios dedutivo / Problem solution : relations mathematic ability, mental representation and deductive reasoning

Souza, Maria Alice Veiga Ferreira de 18 June 2007 (has links)
Orientador: Marcia Regina Ferreira de Brito / Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Educação / Made available in DSpace on 2018-08-09T00:27:57Z (GMT). No. of bitstreams: 1 Souza_MariaAliceVeigaFerreirade_D.pdf: 1847772 bytes, checksum: 0a22f8b1eba3a0b2f2b39867f9a8ccff (MD5) Previous issue date: 2007 / Resumo: A presente pesquisa explorou as relações entre o desempenho no ENADE 2005, o desempenho no EGRAF e o raciocínio dedutivo de 141 estudantes ingressantes e concluintes da Ciência da Computação quando envolvidos em atividades que exploraram o pensar matemático. Os instrumentos foram o exame do ENADE, o exame do EGRAF e o teste psicológico GfRLD. Além disso, doze desses sujeitos foram submetidos a uma testagem individual de alguns componentes da habilidade matemática e a representação mental, além das variáveis estudadas para os 141 estudantes. Para a habilidade e a representação foram utilizados cinco problemas da série XIX-B de Krutetskii e uma entrevista semi-estruturada. Durante a aplicação do teste de Krutetskii, os doze estudantes foram solicitados a pensar em voz alta. Foram feitas anotações complementando informações não captadas via gravação de voz e imagem. Os principais resultados mostraram que nove dos doze estudantes foram considerados mais habilidosos e apresentaram uma tendência para representar os problemas de maneira proposicional. Essa representação sempre que usada por estudantes que dominavam os elementos do problema e suas relações levavamnos ao sucesso em suas soluções. Os desempenhos desses estudantes no ENADE não indicaram estar associados ao fato de serem ingressantes ou concluintes, mas relacionados ao desempenho em nível acadêmico. O raciocínio dedutivo diferiu significativamente entre estudantes concluintes e ingressantes e, dentre os bem e mal sucedidos em atividades acadêmicas. De uma maneira geral, os 141 estudantes tenderam a apresentar associação entre os desempenhos do ENADE e os do EGRAF, que avaliam as inteligências fluido-cristalizadas e cristalizadas, respectivamente / Abstract: he present research explored the relations between the performance in ENADE 2005, the performance in EGRAF and the deductive reasoning of 141 Freshman and Senior students of the Computer Science course when involved in tasks that explored the mathematic thinking. The instruments were the ENADE exam, the EGRAF exam and the psychological test GfRLD. In addition, twelve of those students were submitted to an individual test of some mathematical ability components and the mental representation, over there the variables studied for the 141 students. For the ability and the representation five of Krutetskii's serie XIX- B series problems and a semi structurated interview were used. During the application of the Krutetskii's test, the twelve students were invited to think out loud. Notes were made to complement information not captured by the voice and image videotape. The main results showed that nine out of twelve students were considered more skilful and presented a tendency to represent the problems in a propositional way. This representation when used by students that dominated the elements of the problem and its relations took them to success in their solutions. Those students' performances in ENADE indicated no association with the fact that they were Freshmen or Senior students, but they were related with the level academic performance. The deductive reasoning differed significantly between Freshmen and Senior students and, between well and bad succeeded in academic tasks. In general, the 141 students tended to present association between ENADE performance and EGRAF performance, that evaluate the fluid-crystallized and crystallized intelligences, respectively / Doutorado / Psicologia, Desenvolvimento Humano e Educação / Doutor em Educação
16

Electronic portfolio for mathematical problem solving in the elementary school

Deragisch, Patricia Amelia 01 January 1997 (has links)
Electronic portfolio for mathematical problem solving in the elementary school is an authentic assessment tool for teachers and students to utilize in evaluating mathematical skills. It is a computer-based interactive software program to allow teachers to easily access student work in the problem solving area for assessment purposes, and to store multimedia work samples over time.
17

澳門初一學生的一元一次方程應用題錯誤概念之研究 / Study of misconception on word problems of linear equations of one variable among Grade Seven students in Macao

樊惠玲 January 2006 (has links)
University of Macau / Faculty of Education
18

O Santo Graal da matemática: a hipótese de Riemann

Gaspareti, Leandro 10 October 2014 (has links)
CAPES / Este trabalho traz um relato a respeito da Hipótese de Riemann, com o objetivo de tornar os conceitos referentes a esse problema acessíveis ao professor da educação básica, que pretenda abordá-los em sala de aula quando tratar de conteúdos a ele relacionados. A pesquisa foi inteira bibliográfica, apoiada em sua grande parte em textos de História da Matemática, tornando este trabalho divulgador dos problemas que ocupam parte das pesquisas matemáticas deste século, em especial da Hipótese de Riemann. / This study presents a report about the Riemann Hypothesis, leaving the underlying concepts behind this problem more accessible to a high school teacher. The literature review was based mainly on History of Mathematics texts. This research aims to study significant topics of mathematical research throughout this century, particularly to popularize the Riemann Hypothesis.
19

Improving students' math problem-solving skills in a computer-assisted learning environment

Zhen, Yongjian 01 January 1999 (has links)
No description available.

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