A dissertation submitted in fulfilment of the requirements of the Degree of Master of Education in the Department of Mathematics, Science and Technology Education, Faculty of Education at the University of Zululand, 2019. / This study sought to determine the NSC learners’ level of understandings of exponential and logarithmic functions; grade twelve teachers’ self- assessment of their readiness to teach exponential and logarithmic functions; the relationship between the educators’ self-concept about their ability to teach exponential and logarithmic functions and the actual performance of their learners; and whether or not the educators’ MCK and PCK impacted learner achievement in exponential and logarithmic functions. The study developed a conceptual framework from literature which consisted of two major components depicting learner and educator readiness. These models illustrated factors that could possibly affect the ability of the learner to succeed in understanding instruction related to exponential equations and logarithmic functions, as well as those that would prevent educators from delivering optimum instruction to learners. This study used a mixed-methods research paradigm, as there was need to collect both quantitative and qualitative data in order to adequately answer the four research questions. The survey research design was used, and data were collected through a researcher-designed test (for learners) and a researcher-designed questionnaire for educators, focusing on their MCK and PCK. The research sample, consisting of nine school principals, nine mathematics educators, and 242 mathematics learners based in nine randomly selected schools, was drawn from a target population of high schools in the uMkhanyakude education district, KwaZulu-Natal Province, South Africa. Analysis was done using the SPSS version 23 software programme. The results revealed that learners had basic understanding of exponential and logarithmic functions in most aspects of the topic, although their performance was border line. For the educators, although all they were suitably qualified in terms of their minimum requirements for registration with the South African Council for Educators (SACE), their performance on the same test taken by their learners was only marginally above the performance of their learners. The educators’ responses to the question about their readiness to teach exponential equations and logarithmic functions were v mixed shedding some light on why many of them were unable to solve the same problems given to their learners. On the relationship between educators’ self-concept about their ability to teach exponential and logarithmic functions and their learners’ performance, the results showed that learners whose teachers considered themselves to be suitably qualified, knowledgeable and able to teach exponential and logarithmic functions performed significantly lower than learners whose teachers considered themselves not to be suitably qualified, knowledgeable and able to teach exponential and logarithmic functions. The results of the questions which sought to establish the impact of educators’ MCK and PCK on learner performance in exponential and logarithmic functions drew a blank, suggesting that there was no relationship between teachers’ MCK and PCK, on one hand, and learner performance, on another.

Thesis (Ph. D.)--Oregon State University, 2008. / Printout. Includes bibliographical references (leaves 165-173). Also available on the World Wide Web.

Orientador: Manoel Ferreira Borges Neto / Banca: Antônio Luís Venezuela / Banca: Sandra Regina Monteiro Masalshiene Roveda / Resumo: O objetivo deste trabalho ée estabelecer similaridades entre a análise complexa e os quatérnios. Nele é feito um estudo da regularidade de funções quaterniônicas e são estabelecidas as funções exponencial e logarítmica para os quatérnios sendo feito um estudo da hiperpe- riodicidade dessas funções. Outro resultado apresentado é a generalização quaterniônica da fórmula integral de Cauchy um dos principais teoremas da análise complexa. / Abstract: The objective of this work is to establish similarities between the complex analysis and the quaternions. In it is made a study of the regularity of quaternionic functions and are established the exponential and logarithmic functions for the quaternions being made a study of the hiperperiodicity of these functions. Another presented result is the quater- nionic generalization of the Cauchy's integral formula one of the main theorems of the complex analysis. / Mestre

Submitted by Raniere Barreto (raniere.barros@ufvjm.edu.br) on 2018-04-11T19:02:13Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) lincoln_ferreira_nunes.pdf: 15147355 bytes, checksum: 2fa1f34defc7c2b96c3429455de8add1 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2018-04-20T14:19:37Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) lincoln_ferreira_nunes.pdf: 15147355 bytes, checksum: 2fa1f34defc7c2b96c3429455de8add1 (MD5) / Made available in DSpace on 2018-04-20T14:19:37Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) lincoln_ferreira_nunes.pdf: 15147355 bytes, checksum: 2fa1f34defc7c2b96c3429455de8add1 (MD5) Previous issue date: 2017 / Este trabalho relaciona a utiliza??o da Modelagem Matem?tica no processo de ensino-aprendizagem das fun??es exponenciais e logar?tmicas nos primeiros anos do Ensino Superior, com possibilidades de aplica??o no Ensino M?dio. Inicialmente, relacionou-se a import?ncia das fun??es supracitadas na descri??o de fen?menos das ci?ncias em geral. Em seguida, ap?s an?lise sobre os livros did?ticos, detectou-se defici?ncias em rela??o ? contextualiza??o do estudo das referidas fun??es nestes livros. Para propor sequ?ncias did?ticas que auxiliassem a suprir as lacunas desta contextualiza??o utilizou-se a Modelagem Matem?tica, com aux?lio do software GeoGebra. Para analisar a utiliza??o das sequ?ncias did?ticas propostas, foi escolhida a Engenharia Did?tica como metodologia de pesquisa. Finalmente, ap?s planejadas as sequ?ncias did?ticas, as interven??es did?ticas foram realizadas, tendo como p?blico-alvo um grupo de estudantes do curso de Bacharelado em Ci?ncia e Tecnologia do Campus Mucuri da Universidade Federal dos Vales do Jequitinhonha e Mucuri. Ao final das interven??es, question?rios e relatos produzidos foram analisados, em rela??o ao cumprimento do objetivo inicial da pesquisa. Constatou-se ao final das an?lises dos resultados obtidos, um progresso expressivo dos estudantes em rela??o ? compreens?o da utiliza??o das fun??es supracitadas nas ci?ncias. / Disserta??o (Mestrado Profissional) ? Programa de P?s-Gradua??o Matem?tica, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2017. / This work relates the use of Mathematical Modeling in the teaching-learning process of exponential and logarithmic functions in College Education, With possibilities of application in High School. The importance of the above-mentioned functions in phenomenas description in general was initially related. Then, after analyzing the textbooks, deficiencies were detected in relation to the contextualization of the study of these functions in these books. In order to propose didactic sequences that helps to fulfil the gaps of this contextualization, Mathematical Modelling with the help of software GeoGebra was used. In order to analyze the use of the proposed didactic sequences, Didactic Engineering was chosen as a research methodology. Finally, after the didactic sequences were planned, the didactic interventions were carried out targeting a group of students from the Bachelor?s Degree in Science and Technology of the Mucuri Campus of the Federal University of the Jequitinhonha and Mucuri Valleys. At the end of the interventions, the questionnaires and reports produced were analyzed in relation to the accomplishment of the initial objective of the research. At the end of the analysis of the reports and questionnaires, a very significant progress was made by the students in understanding the use of these functions in the sciences.

Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2018-08-29T14:10:49Z No. of bitstreams: 2 Dissertação - Wagner Pereira dos Santos - 2018.pdf: 1504219 bytes, checksum: 43e4aba8347b7ddf4c5ae0fb5418b1c0 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2018-08-29T14:11:32Z (GMT) No. of bitstreams: 2 Dissertação - Wagner Pereira dos Santos - 2018.pdf: 1504219 bytes, checksum: 43e4aba8347b7ddf4c5ae0fb5418b1c0 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2018-08-29T14:11:32Z (GMT). No. of bitstreams: 2 Dissertação - Wagner Pereira dos Santos - 2018.pdf: 1504219 bytes, checksum: 43e4aba8347b7ddf4c5ae0fb5418b1c0 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2018-08-23 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / This dissertation aims to analyze and propose a new adaptation of Summaê to the IFG - Câmpus Luziânia, with the aim of reducing the high rate of reprobation in Mathematics of the first year students of the Technical Courses Integrated to High School in Buildings, Computer Science and Chemistry. Summaê is a playful game of questions and answers and is inserted in one of the active methodologies idealized by Professor Ricardo Fragelli. The adaptation of the original proposal of the Summaê was for the content of exponential and logarithmic functions, where they present different situations and natural phenomena that are part of our daily life, such as: Half-life, rates of proportional variations, compound interest and intensity of a sound. It should be emphasized that the use of games can promote different teaching situations, presenting a mathematical language as well as formal mathematical concepts, as well as associating theory and practice in the subjects addressed. / Esta dissertação objetiva analisar e propor uma nova adaptação do Summaê para o IFG - Câmpus Luziânia, com o intuito de reduzir o alto índice de reprovação em Matemática dos alunos do primeiro ano dos Cursos Técnicos Integrados ao Ensino Médio em Edificações, Informática e Química. O Summaê é um jogo lúdico de perguntas e respostas e está inserido em uma das metodologias ativas idealizadas pelo professor Ricardo Fragelli. A adaptação da proposta original do Summaê foi para o conteúdo de funções exponencial e logarítmica, onde as mesmas apresentam diversas situações e fenômenos naturais que fazem parte do nosso dia a dia, como por exemplo: Meia vida, taxas de variações proporcionais, juros compostos e intensidade de um som. Convém salientar que, o uso de jogos pode promover diversas situações de ensino, apresentando uma linguagem matemática e também conceitos matemáticos formais, e ainda, associar teoria e prática nos assuntos abordados.

Submitted by Erika Demachki (erikademachki@gmail.com) on 2017-08-09T17:26:18Z No. of bitstreams: 2 Dissertação - Viviane Damasceno Pinto - 2017.pdf: 2465936 bytes, checksum: 7652e0eddd0d7962a5578c2de28589f3 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2017-08-10T13:27:24Z (GMT) No. of bitstreams: 2 Dissertação - Viviane Damasceno Pinto - 2017.pdf: 2465936 bytes, checksum: 7652e0eddd0d7962a5578c2de28589f3 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2017-08-10T13:27:24Z (GMT). No. of bitstreams: 2 Dissertação - Viviane Damasceno Pinto - 2017.pdf: 2465936 bytes, checksum: 7652e0eddd0d7962a5578c2de28589f3 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2017-06-30 / Experience shows that exponentials and logarithms are two themes seen by our students as extremely complex. On the other hand, the teaching and learning of such contents are of great importance and significance, as well as being used in several areas of knowledge as a tool for solving problems. We present a proposal of teaching Exponential functions with their definitions, theorems and properties, but with an approach that aims at the applicability of the concepts acquired in solving significant problems, involving several areas of knowledge. We believe that approaching the theme with this new look will facilitate and enrich teaching and learning, often impoverished, when it occurs only through conceptualizations, theorems and operative properties. The Problem-Based Learning method guided this work and was used to guide the proposed methodology of starting the content of exponential functions, starting from simple and significant problems and, later, enabling the teacher to work with the operative properties of exponentials and logarithms as tools to resolve them. / A experiência mostra que exponenciais e logaritmos são dois temas vistos por nossos alunos como extremamente complexos. Por outro lado, o ensino e aprendizagem de tais conteúdos são de grande importância e significado, além de serem usados em diversas áreas do conhecimento como ferramenta para solução de problemas. Apresentamos uma proposta de ensino de funções Exponenciais com suas definições, teoremas e propriedades, mas com uma abordagem que visa a aplicabilidade dos conceitos adquiridos na resolução de problemas significativos, envolvendo diversas áreas do conhecimento. Acreditamos que a abordagem do tema com esse novo olhar, venha facilitar e enriquecer o ensino e aprendizagem, muitas vezes empobrecido, quando se dá somente através de conceituações, teoremas e propriedades operatórias. O método de Aprendizagem Baseada em Problemas orientou esse trabalho e foi usado para nortear a metodologia proposta de iniciar o conteúdo de funções exponenciais, partindo de problemas simples e significativos e, posteriormente, possibilitando ao professor trabalhar com as propriedades operatórias de exponenciais e logaritmos como ferramentas para resolução dos mesmos.

Made available in DSpace on 2014-06-11T19:26:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-02-17Bitstream added on 2014-06-13T18:30:54Z : No. of bitstreams: 1 barreiro_rc_me_sjrp.pdf: 585027 bytes, checksum: 039155145a6c7b9e6e1fc03a02180b55 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / O objetivo deste trabalho ée estabelecer similaridades entre a análise complexa e os quatérnios. Nele é feito um estudo da regularidade de funções quaterniônicas e são estabelecidas as funções exponencial e logarítmica para os quatérnios sendo feito um estudo da hiperpe- riodicidade dessas funções. Outro resultado apresentado é a generalização quaterniônica da fórmula integral de Cauchy um dos principais teoremas da análise complexa. / The objective of this work is to establish similarities between the complex analysis and the quaternions. In it is made a study of the regularity of quaternionic functions and are established the exponential and logarithmic functions for the quaternions being made a study of the hiperperiodicity of these functions. Another presented result is the quater- nionic generalization of the Cauchy's integral formula one of the main theorems of the complex analysis.