Explorando a matemática dentro da calculadora

This dissertation aims to suggest the teacher of high school mathematics a way of teaching logic to students. For this uses up a teaching sequence that explores the mathematical concepts that are involved in the operation of a calculator one of the greatest symbols of mathematics.

História da matemática na formação de professores: sistemas de numeração antigos

This essay aims to present and describe a proposal of insertion of Mathematics History into teachers undergraduation. Such addition proposal is expected to take place as curricular component to be taught on initial undergraduation for mathematics teachers. The selection of contents for the proposal has been based on the national Curriculum Guidelines (DCN, 2001, acronym in portugueses) for bachelor’s degree in Mathematics; the National Curricular Guidelines for Elementary School (PCNEF, 1998, acronym in Portuguese); and the National Curricular Guidelines for High School (PCNEM, 1999, acronym in Portuguese). The curricular component now presented is supposed to take a 60 hour workload, and includes the following topics: History of Ancient Numbering Systems, History of Trigonometriy and History of fuctions. For the sake of exemplification, the topic History of Ancient Numbering Systems is discussed and analysed in detail as practice for the new curricular component.

Sequências de Fibonacci e a Razão Áurea - aplicações no ensino básico

This thesis aims to present a study of the Fibonacci sequence, initiated from a simple problem of rabbits breeding and the Golden Ratio, which originated from a geometrical construction, for applications in basic education. The main idea of the thesis is to present historical records of the occurrence of these concepts in nature and science and their influence on social, cultural and scientific environments. Also, it will be presented the identification and the characterization of the basic properties of these concepts and howthe connection between them occurs,and mainly, their intriguing consequences. It is also shown some activities emphasizing geometric constructions, links to other mathematics areas, curiosities related to these concepts and the analysis of questions present in vestibular (SAT-Scholastic Aptitude Test) and Enem(national high school Exam) in order to show the importance of these themes in basic education, constituting an excellent opportunity to awaken the students to new points of view in the field of science and life, from the presented subject and to promote new ways of thinking mathematics as a transformative science of society.

Uma proposta para o ensino das estações do ano com base em um referencial topocêntrico

Studies carried out in several countries have confirmed the students’ difficulty in explaining the causes of the seasons of the year, and most of times their learning takes place incorrectly. The seasons of the year have been generally treated in didactic books apart from people´s routine, based on the heliocentric system, what demands abstraction to understand the phenomenon. Before this difficulty, it is necessary to think about a teaching proposal which allows the students to realize the environmental characteristics and its changes over time, as well as the seasons themselves. Thus, our goal was to work from the perspective of the observer on the terrestrial surface, therefore using the topocentric system. For that, we constructed a didactic sequence, grounded in Ausubel´s meaningful learning theory (2003) and in Moreira´s critical meaningful learning theory (2010), which was applied to students in 9th grade of elementary school and in 2th grade of high school at Escola Estadual Jerônimo Arantes, in Uberlândia, Minas Gerais, owing to their previous knowledge and alternative conceptions, which were collected via interviews. Afterwards, to evaluate the applied methodology, we made new interviews, by which we realized improvement in learning in relation to the characteristics of the seasons based on Sun´s apparent path, which we attribute to reference the change of observation and the means to obtain data on the volume of rainfall and average temperature in the city throughout the year. On the other hand, there are points that were not highlighted in learning, such as the link between winter and rainy season and the causes of the seasons, points left to be discussed in future investigations.

Necessidades formativas em Matemática representadas nas vozes de um grupo de professoras dos anos iniciais da rede pública de ensino

Teacher training processes, initial and continuing, and professional practice of teachers who teach Mathematics in the early years are highlighted in the literature as complex, but also are regarded as the way to overcome many difficulties in teaching this component curriculum in the school stage in question. The aim of the study was to investigate how the training needs in Mathematics are represented by a group of teachers in the early years of elementary school of public health system of the city of Uberlândia, State of Minas Gerais. The research, qualitative approach, had as object of study the training needs, in Mathematics, of teachers in the early years. The research involved 16 teachers from two schools in the municipal public schools of that city. Data were collected through questionnaires, non-participant observations, semi-structured interviews followed by group and individual. Analyses were performed by means of thematic categories, founded by content analysis. Data interpretation allowed to understand training needs in mathematics that are presented to the collaborating group from their professional practice, considering the knowledge and skills necessary to teaching. It is understood that the teachers of the study group have major limitations in relation to the specific content and didactic knowledge of Mathematics content, however, the concern is that demonstrated not always being aware of it. Moreover, the difficulties experienced in teaching practice proven to be overcome by sources and non-formal training activities, primarily through more experienced colleagues in the profession. Thus, it becomes difficult to think the initial and continuing training courses for teachers without the training needs of the teaching practice is appreciated as an object of study.

Sequência didática com temas motivadores no ensino de física

This study is based on the design and development of a Didactic sequence in Physics for the first year of high school in a public school, involving structured activities on Astronomy topics, Astronautics and Aeronautics. In addition, it produced a didactic-pedagogic Tutorial for teachers to develop teaching-learning processes in Physics through activities with handmade rockets. These activities have been based on teaching moments of questioning, systematization and contextualization. In this context the understanding and the deepening of concepts and scientific and physical phenomena are related to everyday knowledge, in accordance with the historical-cultural theory, with the Three Pedagogic Moments, dialogicity and Information and Communication Technologies as instruments of triggering actions and motivation, like movies and applications in teaching Astronomy, Physics and Mathematics. The research activities were conduced by adopting a qualitative approach and included reports, questionnaires, semi-structured interviews and other notes. The development of the Didactic Sequence enabled a differentiated teaching and learning process, including aspects such as conceptualization, contextualization, flexibility, interdisciplinary and theoreticalexperimental relationship.

Uma proposta para o ensino das estações do ano com base em um referencial topocêntrico

Studies carried out in several countries have confirmed the students’ difficulty in explaining the causes of the seasons of the year, and most of times their learning takes place incorrectly. The seasons of the year have been generally treated in didactic books apart from people´s routine, based on the heliocentric system, what demands abstraction to understand the phenomenon. Before this difficulty, it is necessary to think about a teaching proposal which allows the students to realize the environmental characteristics and its changes over time, as well as the seasons themselves. Thus, our goal was to work from the perspective of the observer on the terrestrial surface, therefore using the topocentric system. For that, we constructed a didactic sequence, grounded in Ausubel´s meaningful learning theory (2003) and in Moreira´s critical meaningful learning theory (2010), which was applied to students in 9th grade of elementary school and in 2th grade of high school at Escola Estadual Jerônimo Arantes, in Uberlândia, Minas Gerais, owing to their previous knowledge and alternative conceptions, which were collected via interviews. Afterwards, to evaluate the applied methodology, we made new interviews, by which we realized improvement in learning in relation to the characteristics of the seasons based on Sun´s apparent path, which we attribute to reference the change of observation and the means to obtain data on the volume of rainfall and average temperature in the city throughout the year. On the other hand, there are points that were not highlighted in learning, such as the link between winter and rainy season and the causes of the seasons, points left to be discussed in future investigations.

Refletindo sobre a Prática Pedagógica: o contributo do ensino exploratório no desenvolvimento da capacidade de comunicação matemática

O presente relatório teve a sua génese no âmbito do Mestrado em En-sino do 1.º e do 2.º Ciclo do Ensino Básico e encontra-se dividido em duas partes distintas, que se complementam: a dimensão reflexiva e a dimensão investigativa. Na dimensão reflexiva apresenta-se um excerto do percurso de forma-ção docente e reflete-se, crítica e fundamentadamente, acerca das experiências vivenciadas em cada um dos contextos da Prática Peda-gógica. Estas reflexões retratam a forma singular de encarar a prática profissional e explanam o processo de (re)construção da minha identi-dade enquanto professora. A dimensão investigativa surgiu da experiência educativa, no âmbito da Prática Pedagógica realizada numa turma do 4.º ano de escolarida-de, e incidiu na área da comunicação matemática, num contexto de ensino exploratório. Este estudo apresenta um carácter qualitativo, na medida em que se pretende compreender e analisar o contributo do ensino exploratório no desenvolvimento da capacidade de comunica-ção matemática dos alunos. A recolha de dados incidiu sobre a realização de três tarefas matemáticas em aula, tendo sido registado em vídeo os momentos de discussão coletiva com a turma e realizada a análise de conteúdo das resoluções escritas dos alunos. Os resultados obtidos parecem demonstrar que a dinâmica do ensino exploratório proporcionou o desenvolvimento da capacidade de comunicação ma-temática dos alunos, através da participação em momentos de partilha, justificação e discussão de diferentes estratégias.

Matemática em atividades interdisciplinares: uma base para a estruturação dos seminários integrados

A partir do ano de 2012, lança-se uma proposta de reestruturação no Ensino Mé- dio no Estado do Rio Grande do Sul. Surge nessa proposta um elemento novo na grade curricular chamado de Seminário Integrado. Esse tem por objetivo aliar a formação geral à parte diversificada do currículo através de um planejamento interdisciplinar voltado à pesquisa. Diante desse cenário surge a motivação para elaborar esse trabalho, nele apresenta-se quatro atividades interdisciplinares relacionando a matemática com outras disciplinas. Nossa proposta é que essas atividades possam servir como uma possível base para elaboração e/ou estruturação de atividades nos Seminários Integrados. Junto com cada atividade apresentamos uma proposta de pesquisa relacionada à prática social, bem como em quais sentidos essas atividades poderão preparar o jovem para ser inserido no mercado de trabalho. O material elaborado pelos professores envolvidos e a escolha dos métodos de ensino utilizados são subsidiados por uma pesquisa bibliográfica que fizemos a respeito do tema interdisciplinaridade. As atividades elaboradas foram aplicadas em duas turmas de terceiro ano do Ensino Médio, em uma escola particular na cidade de Pelotas, Rio Grande do Sul. Apresentamos alguns dados que consideramos relevantes em termos de resultados relacionados ao ganho pedagógico.

Matemática e música

Esta dissertação propõe atividades a fim de estabelecer uma aproximação entre a matemática e a música, aproveitando a estreita relação existente entre esses dois assuntos. Aplica-se a história da matemática como ferramenta para o entendimento de conceitos matemáticos e musicais, bem como a evolução da música. Além disso, utiliza-se a resolução de problemas para estabelecer a relação entre a matemática e a música através das funções exponencial e logarítmica e a sequência numérica chamada progressão geométrica (P.G.) Ações efetivas, como questionários relativos ao assunto a ser estudado, debates com o intuito de perceber o nível de conhecimento dos alunos sobre a música e uma atividade prática, a construção de um xilofone de garrafas, envolvendo os conhecimentos adquiridos, auxiliaram para a obtenção do resultado final deste trabalho. Apresenta-se também a análise das atividades que embasaram a proposta desse trabalho quando aplicadas em uma turma de segundo ano do Colégio Sinodal Alfredo Simon, localizada na cidade de Pelotas no estado do Rio Grande do Sul.

Ensino dos números racionais comparando medidas de unidade

This research aimed to investigate the possibility to develop the process of teaching and learning of the division of rational numbers with guided tasks in interpretation of measure. Adopted as methodology the Didactic Engineering and a didactic sequence in order to develop the work with students of High School. Participated of training sessions twelve students of one state school of Porto Barreiro city - Paran´a. The results of application of the didactic engineering suggest the importance of utilization of guided tasks in interpretation of measure, since strengthened the understanding, on the part of students, the concept of division of fractional rational numbers and contributed for them develop the comprehension of others questions associated to the concept of rational numbers, such as order, equivalence and density.

Estatística com projetos: uma alternativa de ensino e aprendizagem

This work presents the use of projects as an alternative for teaching statistics, for that it was elaborated a Project that involves the educational socioeconomic reality from the families of the students and built a link between the reality and the scholastic knowledge. This project was applied in Sesi School - Pato Branco between the months of August to September 2014 with 25 students from the 1o and 2o grades from High School. To work the statistics concepts a questionnaire was applied for the parents of the students of the Project´s, they answer it and through these answers the students made frequency tables and graphs, besides measure calculations on measures of central tendency and dispersion measure. All of the construction were realized manually and in the Excel spreadsheet and some of them were chosen to be in this work to with the purpose of showing the hits and the mistakes done. The students worked in groups of 5 students, except in the last class when it was done a test referring to the contents taught in the classroom and a questionnaire for them to evaluate the project´s application. The results show that the teaching of Statistics trough projects motivate the students interest, stimulating the statistical reasoning, in addition made the students know a Math that was different from the one they have already known, with a lot of calculation but with no final objective.

Metodologia de ensino do conceito de função exponencial à luz da teoria das situações didáticas

This essay presents a proposal on methodology over the mathematical object Exponential Function which enables the development of interpretative and creative skills with potential meaning to the students starting from a didactic sequence structured on the light of The Theory of Didactic Situations from Guy Brousseau and, from the Records of Semiotic Representation of Duval, providing interactions among the students, the teacher and the environment of cooperative learning where the students feel free to express their own ideas as well as to suggest their own approaches. The methodology presented has been developed according to the students first knowledge, valuing their different ways of registering, which have such an important role during the teaching and learning processes. The proposal has been applied to the students from the first year of high school of Colégio Estadual José de Anchieta Ensino Fundamental e Médio, located in a town called Dois Vizinhos –Paraná. In order to the development of the research the methodological tool Didactic Engineering Artigue which consists in a methodology developed only to the research with didactic situations. The main goal has been reached at first, which was to work on the conceptual part of the Exponential Function, the relation of dependence and its main characteristic so that the variable part is in the exponent. Moreover with no imposition but starting from suitable didactic situations, the students were able to realize that they could solve the problems which involve the exponential function and furthermore create new problems (according to their universe) modeled by this kind of function. Its believed that the methodology based on the theory of didactic situations, analysis of students registers, observation on mistakes and obstacles as well as reflections over the aspects of the didactic contract are of fundamental importance to the teaching practice and determinant during the teaching-learning process.

Estruturas metodológicas direcionadas ao ensino de cinemática para educandos diagnosticados com TDAH : utilizando o modellus como interface interativa entre a teoria e a experimentação

Dissertação (mestrado)—Universidade de Brasília, Instituto de Física, Programa de Pós-Graduação em Física, 2015.

Refletindo sobre a Prática Pedagógica em Educação Pré-Escolar e Ensino do 1.º Ciclo do Ensino Básico- Um estudo de caso sobre a integração da música e da matemática na consolidação de aprendizagens numa turma do 2.º ano

O presente relatório referente ao Mestrado em Educação Pré-Escolar e Ensino do 1.º Ciclo do Ensino Básico, encontra-se dividido em duas partes. A primeira parte do relatório diz respeito à dimensão reflexiva onde são apresentados aspetos referentes às práticas pedagógicas desenvolvidas ao longo do mestrado. Em primeiro lugar surgem as reflexões críticas e fundamentadas referentes à educação pré-escolar e em segundo lugar surgem as reflexões referentes ao 1.º CEB. Ambas referem as experiências vivenciadas e as aprendizagens feitas ao longo de toda a prática. A dimensão investigativa foi realizada no contexto do 1.º CEB com crianças do 2.º ano de escolaridade. Esta investigação centra-se num estudo onde o objetivo era perceber como se pode integrar a Música e a Matemática para consolidar aprendizagens matemáticas numa turma de 2.º ano do 1.º CEB. Participaram neste estudo vinte e um alunos de uma escola pública pertencente ao concelho de Leiria. Para a realização do estudo foram desenvolvidas duas sequências didáticas. A 1.ª sequência divide-se em: observação e análise de padrões geométricos; criação de uma sequência geométrica no quadro em grande grupo; associação de um som a cada uma das diferentes figuras geométricas utilizadas na sequência criada. A 2.ª sequência divide-se em: criação e apresentação de sequências geométricas e sonoras em grupos de 5 elementos; identificação de uma sequência geométrica através de uma sequência sonora; identificação de uma sequência geométrica através da escuta de uma obra musical. Os alunos estabeleceram relações entre as duas áreas, adquirindo aprendizagens proporcionadas pelas sequências pedagógicas