Formação inicial do professor de matemática com uso de tecnologias da informação e comunicação no contexto da escola pública

This paper intends to analyze which contribution for teachers formative training the participation on extension projects can bring to the bachelors in Mathematics teaching. The research was conducted during the developing of a Project from the Program of Extension - Programa de Extensão UFU/Comunidade (PEIC) in a municipal school located in a country zone from Uberlândia-MG. The research was constituted by a series of activities with students from the ninth year of the Fundamental Education, Middle School. The main focus is the work developed by two bachelors of Mathemactics teaching from the Federal University from Uberlândia who were part of the PEIC team. This present research intends to answer the following question: How the extension project “Information technology and communication on Mathematics problem resolution in country zone schools” has contribited to reinforce and to (re)criate the fomative experiences of students from the Mathematics teaching course who have developed such project? The presente study is from a qualitative nature and has made use of the partaker searching methodology. The presente paper was organized in three chapters. On chapter I evidence is given to theoretical discussion made, having as main references the works of Larrosa, Ponte e Shön. Chapter II brings the description of the three activities that were developed and aplied during the PEIC Project, which are: Problems in the Park, Inaccessible Hight and Lili Game. On chapter III, the data analysis is presented. The data was obtained through instruments of registration such as: camera recording, photografic material, meetings reports, field notes, surveys and semi-structured interviews. The initial hypothesis aim is on the fact that the participation on extention projects during the graduation course can bring rich contribution for the teachers to be, since it’s going to provide the knowledge and chalenge close to the one from the future profession. With the analysis of the obtained results from the colected data, it was possible to conclude that the PEIC has provided the bachelors in Mathematics teching the opportunity of recreate and potenciate their formative experiences. Such opportunity happened in situations that involved, for example, planning makings, development of colective work, softwares usage, different school spaces and the direct interaction with school bureaucracy. Beyond that, it was possible to work with the cocepts of reflection in action in a way to contribute to the professional development of the future Mathematics teachers. Thereby, in our final considerations, is possible to conclude that extension projects performed during the graduation course can bring great contributions to the professional formation of the bachelors in Mathematics teaching, among them we highlight the potentiation of the previous formative experiences and the development of colective work and behavior related to a reflexive teacher.

Educação cognitiva: Estudo dos efeitos de um programa e-leraning de desenvolvimento cognitivo através da matemática em alunos do 8º ano de escolaridade

Partindo do princípio que a cognição é modificável e alterável, surge a educação cognitiva. Este repensar da educação converge com a necessidade de uma educação para a diversidade e inclusão. Ao mesmo tempo surgem as novas tecnologias, cada vez mais presentes. Focando os processos de criatividade e resolução de problemas, construímos um programa e-learning de desenvolvimento cognitivo através da matemática (PEDCM) e estudamos os efeitos da implementação do mesmo. A metodologia utilizada foi a quasi-experimental, com pré e pós-teste e sem grupo de controlo. A amostra foi constituída por 1O alunos de uma turma do 8° ano da Escola EB 2,3 Conde de Vilalva, em Évora. Os instrumentos utilizados foram: o Teste de Auto-conceito de Susan Harter; Matrizes Standard de Raven; Bateria de Provas de Raciocínio; Teste de Pensamento Criativo de Torrance e o PEDCM. Este último foi implementado durante 10 sessões (com 1h30m cada). Os resultados obtidos demonstram efeitos positivos evidentes da implementação PEDCM, ao nível do desempenho cognitivo, desempenho criativo, no auto-conceito e principalmente no rendimento escolar. ABSTRACT: Starting from the principle that cognition is alterable and modifiable, rises the cognitive education. This rethinking of education converges with an education for diversity and inclusion. Parallelly the new technologies rise, more and more present in education. Focusing on the processes of creativity and problem resolution and we've built an e-learning program of cognitive development through mathematics (PEDCM) and studied the effects of its implementation. The used methodology was the almost experimental, with pre and post test without a group of control. The show was built by 1O students of a class of 8th grade of the school EB2,3 Conde de Vilalva in Évora. The instruments used were: the Test of Self­Concept by Susan Harter; Standard Registries by Raven; Set of Reasoning Tests; Test of Creative Thought from Torrance and the PEDCM, implemented for 10 sessions (of 1.30h each). The results attained show the positive effects evident from the implementation of the PEDCM, to the level of cognitive performance, creative performance, in the self concept and particularly in the school results.

Relatório de prática de ensino supervisionada realizada na Escola de Música do Conservatório Nacional: a embocadura do clarinete: caracterização, deteção e resolução de problemas

O presente relatório surge no seguimento da Prática de Ensino Supervisionada, realizada na Escola de Música do Conservatório Nacional sob a orientação da Professora Doutora Ana Telles Béreau (orientadora interna) e do orientador cooperante Professor Luís Miguel Gomes. A primeira secção deste trabalho pretende fazer o enquadramento histórico e organizacional da instituição, bem como descrever os alunos e as práticas metodológicas utilizadas pelo orientador cooperante nos domínios da psicologia educacional e do ensino especializado do clarinete. A segunda e última secção deste relatório aborda a noção de embocadura, definindo as suas principais conceções, função, formação, erros comuns associados e respetivas causas, apresentando finalmente propostas de vários autores para o desenvolvimento das componentes diretamente relacionadas com a embocadura, como meio de prevenção de problemas e desenvolvimento desta componente, tão importante para a prática do clarinete e de qualquer instrumento de sopro; Abstract: Supervised Teaching Report held at Escola de Música do Conservatório Nacional: The embouchure of the clarinetist – characterization, detection and problem resolution This report follows the Supervised Teaching Practice held at Escola de Música do Conservatório Nacional under the inner guidance of PhD Professor Ana Telles Béreau and having had, as cooperating advisor, Professor Luís Miguel Gomes. A first section is intended to provide the historical and organizational framework of the institution, describe students and methodological practices used by the cooperating advisor about educational psychology and specialized clarinet education. The second and final section of this report deals with the notion of embouchure, defining its main conceptions, function training, common errors and their causes, finally presenting the proposals of various authors aiming at the development of components directly related to embouchure, as a way for preventing problems and develop this specific issue, so important to the practice of the clarinet and, indeed, of any wind instrument.

Distribution of Healthcare resources II.Study and Comparison of a Linear Programming Problem and its Dual. Resolution and Evaluation of a Practical Case and its Programming using Excel and Win QSB.

[EN]This research had as primary objective to model different types of problems using linear programming and apply different methods so as to find an adequate solution to them. To achieve this objective, a linear programming problem and its dual were studied and compared. For that, linear programming techniques were provided and an introduction of the duality theory was given, analyzing the dual problem and the duality theorems. Then, a general economic interpretation was given and different optimal dual variables like shadow prices were studied through the next practical case: An aesthetic surgery hospital wanted to organize its monthly waiting list of four types of surgeries to maximize its daily income. To solve this practical case, we modelled the linear programming problem following the relationships between the primal problem and its dual. Additionally, we solved the dual problem graphically, and then we found the optimal solution of the practical case posed through its dual, following the different theorems of the duality theory. Moreover, how Complementary Slackness can help to solve linear programming problems was studied. To facilitate the solution Solver application of Excel and Win QSB programme were used.

On the resolution of the generalized nonlinear complementarity problem

Minimization of a differentiable function subject to box constraints is proposed as a strategy to solve the generalized nonlinear complementarity problem (GNCP) defined on a polyhedral cone. It is not necessary to calculate projections that complicate and sometimes even disable the implementation of algorithms for solving these kinds of problems. Theoretical results that relate stationary points of the function that is minimized to the solutions of the GNCP are presented. Perturbations of the GNCP are also considered, and results are obtained related to the resolution of GNCPs with very general assumptions on the data. These theoretical results show that local methods for box-constrained optimization applied to the associated problem are efficient tools for solving the GNCP. Numerical experiments are presented that encourage the use of this approach.

Structural analysis of combinatorial optimization problem characteristics and their resolution using hybrid approaches

Many combinatorial problems coming from the real world may not have a clear and well defined structure, typically being dirtied by side constraints, or being composed of two or more sub-problems, usually not disjoint. Such problems are not suitable to be solved with pure approaches based on a single programming paradigm, because a paradigm that can effectively face a problem characteristic may behave inefficiently when facing other characteristics. In these cases, modelling the problem using different programming techniques, trying to ”take the best” from each technique, can produce solvers that largely dominate pure approaches. We demonstrate the effectiveness of hybridization and we discuss about different hybridization techniques by analyzing two classes of problems with particular structures, exploiting Constraint Programming and Integer Linear Programming solving tools and Algorithm Portfolios and Logic Based Benders Decomposition as integration and hybridization frameworks.

The migratory farm labor problem in the United States : a report, together with individual views, to the Committee on Labor and Public Welfare, United States Senate, made by its Subcommittee on Migratory Labor, pursuant to S. Res. 267 (86th Cong., 2d sess.) a resolution authorizing a study of the problems of migratory labor.

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