Algebraic Concept
Mostrando 1-12 de 32 artigos, teses e dissertações.
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1. Explorando las Conceptualizaciones de la Pendiente en Estudiantes Universitarios
Abstract This article reports an investigation that explored Slope's conceptualizations in 21 university students. The data was collected with a Task-Based Interview and for its data analysis it focused on the identification of key phrases and procedures that referred to any of the eleven conceptualizations reported on the slope concept. The students evidenc
Bolema. Publicado em: 02/12/2019
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2. Invariantes Operatórios de Equilíbrio Algébrico Presentes nas Estratégias de Estudantes do 3° Ano do Ensino Fundamental
Resumo Em vários países, têm sido recorrentes relatos de dificuldades de entendimento de conceitos algébricos. A solução para este problema, proposta por grande parte da comunidade de educadores matemáticos pelo mundo, foi promover a introdução de conceitos algébricos desde os primeiros anos escolares. O objetivo deste trabalho foi descrever e anal
Bolema. Publicado em: 02/12/2019
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3. Dificultades conceptuales y matemáticas del modelo convencional de oscilaciones amortiguadas
Abstract A mathematical study on the subject of damped oscillations is expounded, focused on the computation of the constants of the equation of movement, their mathematical meaning and their implications on the behavior of systems. Examples are given of the initial value method for computing the constants, both for free and damped oscillations. Algebraic ex
Rev. Bras. Ensino Fís.. Publicado em: 06/12/2018
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4. ON AUTOMATIC DIFFERENTIATION AND ALGORITHMIC LINEARIZATION
We review the methods and applications of automatic differentiation, a research and development activity, which has evolved in various computational fields since the mid 1950's. Starting from very simple basic principles that are familiar from school, one arrives at various theoretical and practical challenges. The resulting activity encompasses mathematical
Pesqui. Oper.. Publicado em: 2014-12
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5. Desenvolvimento de conceitos algÃbricos por professores dos anos iniciais do ensino fundamental / Development of algebraic concepts by teachers of the early years in elementary school
Diversas pesquisas tÃm mostrado que atividades ligadas ao pensamento algÃbrico nos anos iniciais tem sido uma forma de trazer significado e desenvolver conceitos como os de equaÃÃo, incÃgnita e equivalÃncia. No entanto, ainda falta investigar como professores desses anos sÃo capazes de pensar sobre esses conceitos e incorporÃ-los em sua prÃtica peda
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2011
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6. Sobre teoremas de equilíbrio de Nash / On Nash equilibrium theorems
In this work, applying methods of Algebraic Topology, we obtain new versions of the Nash equilibrium theorem. We define a concept of local equilibrium for non-cooperative games, the socalled weak local equilibrium, and we prove its existence when the spaces of strategies are differentiable manifolds and the payoff functions are continuously differentiable. W
Publicado em: 2010
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7. Detectando fatores de variedade de codimensão um com propriedades de posição geral
This work is an approach to the famous "Product with a Line Problem". It investigates the class of topological spaces whose cartesian product with R is a topological manifold. Such spaces are called "Codimension One Manifold Factors". Based mainly on [5, 7, 14, 15, 24], we introduce the concept of generalized manifolds, which are separable ANR spaces with sa
Publicado em: 2010
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8. Students algebraic thought and language manifestations: indicators for teaching organization. / Manifestações do pensamento e da linguagem algébrica de estudantes: indicadores para a organização do ensino.
This work deals with the students difficulties about algebraic knowledge, which could be related to the specificities of algebra, to educational methodology and didactical matters, and also to language and thought psychological processes. Therefore, the subject of study is the studentsthoughts and their algebraic language. We understand that thought and lang
Publicado em: 2008
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9. Representações torcidas de Quivers / Twisted representations of quivers
The main goal of this thesis is to introduce for the category of twisted representations of a quiver Q the definitions and results one already knows for categories of representations of quivers. The concept of twisted representations was introduced by Gothen and King in [11] to study problems concerning vector bundles over algebraic varieties. King also show
Publicado em: 2008
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10. PRÁTICAS PEDAGÓGICAS PARA O ENSINO DE FRAÇÕES OBJETIVANDO A INTRODUÇÃO À ÁLGEBRA / PEDAGOGICAL PRACTICES FOR TEACHING FRACTIONS AIMING AT THE INTRODUCTION TO ALGEBRA
The main idea of this thesis was to work on the concept of fraction, identifying the fraction as a number and representing it in the line, taking as basis the recommendations and experiments of Kathleen Hart, and, mainly Hung-Hsi Wu. A set of activities was developed, generating a proposal for teaching fractions, led to practice in classes of students of 7th
Publicado em: 2008
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11. A aprendizagem de polinômios através da resolução de problemas por meio de um ensino contextualizado
The objective of this study was to verify how learning of polynomials took place using problem solving in a contextualized learning situation. Thus, the present research was developed in the context of polynomials, based on the construction of cardboard boxes, using students previous knowledge. Based on a bibliographic review of studies on the theme, we defi
Publicado em: 2008
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12. PHILOSOPHY OF NATURE AND SCIENCE: A NEW APPROACH AND COMPLEMENTARITY / FILOSOFIA DA NATUREZA E CIÊNCIA: NOVA PERSPECTIVA E COMPLEMENTARIDADE
The main purpose of this enquiry is to provide a cooperative framework for philosophy and experimental science. This should be accomplished by means of a common domain, namely mathematics, specifically through algebra. Such a coordination between two different levels of knowledge of the natural world is named philosophy of nature, and had been proposed by Ar
Publicado em: 2008