Cinthya Maria Schneider Meneghetti

Gráfico de Função polinomial: Uma Discussão Sobre Dificuldades dos Alunos no Ensino Superior

Este artigo apresenta e discute dificuldades de alunos do primeiro ano de cursos de Ciencias Exatas e Engenharias da Universidade Federal do Rio Grande (FURG) no que diz respeito a leitura e compreensao de um grafico de uma funcao polinomial. A partir de um estudo qualitativo dos dados obtidos e das atividades propostas, pretende-se identificar algumas lacunas na aprendizagem e analisar a falta de dominio dos conteudos envolvidos. Muitas vezes, os alunos nao estao aptos e nao avancam nas disciplinas da graduacao, pois nao possuem os pre-requisitos necessarios para dar continuidade ao processo de ensino-aprendizagem. Atraves de um teste de sondagem, foi possivel investigar alguns conhecimentos matematicos previos e as principais duvidas dos alunos. Os resultados deste trabalho permitem tracar uma estrategia inicial para dar continuidade e complementar a formacao basica do aluno. Portanto, propoem-se atividades utilizando o software GeoGebra para trabalhar os conceitos envolvidos e auxiliar na transicao do Ensino Medio para o Ensino Superior. Ao final, ainda discute-se a aplicacao de uma das atividades propostas em uma turma.

Uma Aplicação de Geometria Diferencial à Indústria: molde para empacotamento automático

Neste trabalho, fazemos uma descricao matematica para a obtencao do molde de uma maquina de empacotar e apresentamos passo a passo a construcao de um caso particular quando a parametrizacao da curva que determina a forma do molde e grafico de uma funcao. A fim de ilustrarmos o molde obtido, utilizamos o \textit{software} GeoGebra. Para construir o molde, usamos conceitos classicos de Geometria Diferencial. O principal conceito de Geometria Diferencial envolvido e um caso particular de superficies regradas, que sao conhecidas como superficies desenvolviveis. Tais superficies apresentam uma serie de propriedades que as tornam eficazes para aplicacoes em diferentes areas e acreditamos que este modelo se assemelha a muitos que existem no mercado. Nosso objetivo principal e apresentar uma aplicacao de Geometria Diferencial a industria, contribuindo para justificar a importância da presenca de um matematico colaborando na projecao e execucao de equipamentos mais eficazes e produtivos.

GEOMETRY ACTIVITIES FOR HIGH SCHOOL

This work suggests activities to introduce and develop content for Solid Geometry, particularly prisms and pyramids with High School students, prioritizing t...

Atividades de Trigonometria para o Ensino Fundamental com o uso do software GeoGebra

This work aims to present new activities for teaching trigonometry in Elementary Education. The idea is to show how to teach the main trigonometric relations through exercises that guide students, gradually, to conclusions of these trigonometry relations. The suggested activities make use of “GeoGebra ”software, a feature that enables the construction of trigonometric circles that facilitate the understanding by students. This paper presents not only the sine relations, cosine and tangent for acute angles, as it is usually proposed by textbooks 9 th year of elementary school, but also relationships with secant, cosecant and cotangent, and it

A utilização de softwares no ensino de funções quadráticas

This project aims to present a different way of approaching the concepts of quadratic functions, proposing exercises of motivation and content fixation, with contextualized issues facing the student day-to-day. It is intended to assist teachers and making, this way, learning from their students more pleasurable, demystifying mathematics, providing opportunities for students to use mathematical concepts in their daily lives. Using technological tools already available in most schools of Basic Education, will be presenting activities using at least one free software to inspire teachers in preparing their lessons and consequently help students in building their knowledge.

ANALYZING APPLIED MATHEMATICS GRADUATION STUDENTS’ PROFILE: DISCUSSING THE REASONS OF THE LOW ACADEMIC RESULTS DURING THE FIRST SEMESTER AT THE UNIVERSITY

This paper aims to show and justify a relation between the number of new students and egress of Applied Mathematics course. Analyzing qualitative data, we intend to discuss learning problems related to the subjects of the course’s first semester, such as the lack of mastery of the mathematics studied during elementary and high school. In this case, students are not prepared and do not approve the graduation subjects, as they have significant gaps in their academic fundamental training which is required to learning. By means of a survey, we collect data referring to elementary school, prior knowledge and students’ main doubts. The results allow defining a student profile and suggest the need of adding alternative ways to complement their basic education.

Estudo da Circunferência no Ensino Médio: Sugestões de Atividades com a Utilização do Software GeoGebra

This article proposes three activities that can be developed to study the circle for High School students. All proposed activities use the free software of the dynamic geometry Geogebra as learning tool. The suggested activities have as goal to teach, through instruction scripts, the following content: circle equations (reduced and general), relative position between point and circle and relative position between line and circle. In addition, we will portray an analysis of the activities that based the proposal of our task when these were executed in three Technical Learning Integrated to High School’s third year junior groups. We conclude the validity of the activities by student performance on assessments, showing a better knowledge of the subject in relation to students in classes in which there GeoGebra was not used.

A MATEMÁTICA EM ATIVIDADES INTERDISCIPLINARES: UMA BASE PARA A ESTRUTURAÇÃO DOS SEMINÁRIOS INTEGRADOS

In 2012 came a proposal for restructuring the high school in the state of Rio Grande do Sul, known as Integrated Seminar. This aims to assess general education to diverse part of the curriculum through an interdisciplinary planning of directed researching. In this scenario, here comes the motivation to prepare this work. This study presents three interdisciplinary activities relating mathematics to other disciplines. Our proposal is that these activities may serve as a possible basis for preparation and/ or structuring activities in Integrated Seminars. Along with every activity, we propose a social practice related to research as well as in which way these activities will prepare the young to be inserted in the labor market. The material prepared by the teachers involved and the choice of teaching methods used is subsidized by a literature research we performed on the subject about interdisciplinary. The activities were implemented in two classes of third year of high school, in a private school in the city of Pelotas, Rio Grande do Sul. We also present some data that we consider relevant in terms of pedagogical gain.

Questionário Virtual Para o Ensino de Probabilidade

As the concept of probability is fundamental to the individual formation due to its form of reasoning,to its applicability and to the professional field, we present a proposal that suggests, first, a problematization then the definition of the probability jargon. It follows that methodology, since the history occurs in this order: first the problems arise, then the concepts and definitions. So, we use the technology in two virtual and interactive quizzes to be solved by students, since playing has an important role during the constrution of the concepts and definitions, the student becomes easily closer to the whole subject.