Submitted by isabela.moljf@hotmail.com (isabela.moljf@hotmail.com) on 2016-08-15T14:10:30Z No. of bitstreams: 1 denisemansoldosalazar.pdf: 6189821 bytes, checksum: 46c6fab6e5197499e4198d05e4cb4214 (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2017-02-02T11:08:56Z (GMT) No. of bitstreams: 1 denisemansoldosalazar.pdf: 6189821 bytes, checksum: 46c6fab6e5197499e4198d05e4cb4214 (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2017-02-07T11:21:23Z (GMT) No. of bitstreams: 1 denisemansoldosalazar.pdf: 6189821 bytes, checksum: 46c6fab6e5197499e4198d05e4cb4214 (MD5) / Made available in DSpace on 2017-02-07T11:21:23Z (GMT). No. of bitstreams: 1 denisemansoldosalazar.pdf: 6189821 bytes, checksum: 46c6fab6e5197499e4198d05e4cb4214 (MD5) Previous issue date: 2015-12-17 / Apresentamos uma pesquisa que investiga as potencialidades do software GeoGebra como instrumento tecnológico favorável à aprendizagem das funções trigonométricas no Ensino Médio, a partir das representações gráficas destas funções. Trata-se uma pesquisa caracterizada por uma abordagem qualitativa em que foi usada uma sequência didática de atividades, com tarefas em um nível de exigência crescente. Cada etapa de execução desta pesquisa está respaldada pelos pressupostos teóricos da Engenharia Didática, metodologia adotada em pesquisas que envolvem uma parte experimental. Os argumentos advindos das análises dos dados estão fundamentados na Teoria Antropológica do Didático. Trabalhamos com a elaboração de recursos educacionais digitais para o ensino da Trigonometria utilizando o software GeoGebra, que serão aplicados a um grupo de alunos do Ensino Médio. Relacionada à pesquisa está a elaboração de um produto educacional que reunirá as tarefas aplicadas com uma orientação para a sua utilização em sala de aula. / We present a research which investigates the GeoGebra software capabilities as technological instrument conducive to learning of the trigonometric functions in high school, from the graphical representations of these functions. It is a survey characterized by a qualitative approach in which a didactic sequence of activities was used, with tasks at a level of growing demand. Each of this research execution phase is supported by the theoretical assumptions of the Didactic Engineering methodology used in research involving an experimental part. The arguments arising from the analysis are based on the Anthropological Theory of Didactic. For the development of digital educational resources for teaching trigonometry, which will apply to a group of high school students, used the GeoGebra software. Related to research, educational product offered here brings together the applied tasks and with guidance for using it in the classroom.

Notre travail de recherche s’inscrit dans la problématique de l’apprentissage de la géométrie pour des élèves de 6e au collège, et porte plus particulièrement sur les difficultés imposées par la résolution des problèmes de démonstration de géométrie plane. Notre but consiste à étudier le fonctionnement cognitif des élèves en fonction des connaissances mobilisées et du taux de la charge cognitive générée par la résolution des problèmes, afin de mettre en place une stratégie de guidage permettant de remédier aux difficultés des élèves et d’optimiser leurs performances dans une situation de résolution des problèmes dans le domaine précité. En nous appuyant sur différentes théories issues de la psychologie, de la didactique (la théorie de l’instrumentation, la théorie de la charge cognitive, la théorie des situations, la théorie des champs conceptuels, etc.), nous avons fait l’hypothèse qu’une analyse cognitive de l’activité de l’élève dans un environnement papier-crayon permet de recueillir les indices pertinents permettant d’identifier les types de connaissances dont la mobilisation se révèle problématique pour les élèves, ainsi que les éléments de la tâche qui engendrent une charge cognitive élevée. A partir des éléments récupérés, nous avons conçu et testé un dispositif de guidage s’appuyant sur l’environnement de géométrie dynamique GeoGebra pour la résolution de problèmes de démonstration et dans lequel un guidage spécifique a été proposé au niveau de la construction de la figure, ainsi que pour l’élaboration d’un raisonnement déductif. / Our research work is related to the problem of learning Geometry in grade 6, particularly the difficulties imposed by the resolution of the problems of demonstration. Our goal is to study the cognitive functioning of students on the basis of knowledge mobilized and the rate of the cognitive load generated by the resolution of the problems, in order to put in place a strategy to remedy the difficulties of the students and to optimize the intellectual performance in a situation of resolution of problems in the domain of geometry.Pressing on the different theories of cognitive psychology (the theory of the instrumentation, the theory of the cognitive load, etc.) and those of didactics (theory of situations and the theory of conceptual fields), we have made the assumption that a cognitive analysis of the activity of the student in the environment paper-pen, allows us to collect the relevant indices to identify the types of knowledge which mobilization proves to be problematic for the students, as well as the elements of the task that engender a high cognitive load.From the items retrieved, we have designed and tested a specific guidance in the environment of dynamic geometry GeoGebra for the resolution of problems of demonstration, related to the drawing of figures, as well as the development of a deductive reasoning.

Este trabajo trata de proporcionar a los maestros de secundaria una herramienta pedagógica para ayudar en la introducción de los conceptos geométricos. La propuesta busca establecer relaciones entre contenidos del aula, antaño simplemente teóricos, con una situación práctica, adaptando el problema del Mapa del Tesoro a una realidad aproximada de los estudiantes de la escuela en la que se aplicó la obra. Además, el software GeoGebra se utilizó para motivar a través del uso de las tecnologías, las preguntas y la creatividad de los alumnos. Llegamos a la conclusión de que, a partir de una estrategia de desafío, aprendizaje obtenido significado y, desde allí, se convirtió en importante para los estudiantes involucrados. / Este trabalho busca disponibilizar aos professores do Ensino Médio um instrumento pedagógico que auxilie na introdução de conceitos geométricos. A proposta pretende estabelecer relações entre conteúdos de sala de aula, outrora meramente teóricos, com uma situação prática, através da adaptação do problema do Mapa do Tesouro para uma realidade aproximada dos estudantes da escola em que o trabalho foi aplicado. Além disso, foi utilizado o software GeoGebra, para motivar, através do uso de tecnologias, os questionamentos e a criatividade dos estudantes. Concluímos que, a partir de uma estratégia desafiadora, o aprendizado ganhou significado e importância para os alunos envolvidos.

<p>U&nbsp; doktorskoj&nbsp; disertaciji&nbsp; je&nbsp; prezentovano&nbsp; pedago&scaron;ko&nbsp; istraživanje&nbsp; koje&nbsp; se&nbsp; odnosi&nbsp; na&nbsp; teorijsko&nbsp; i eksperimentalno&nbsp; ispitivanje&nbsp; efekata&nbsp; primene&nbsp; metodskih&nbsp; pristupa&nbsp; zasnovanih&nbsp; na&nbsp; matematičkom modelovanju u obradi izvoda funkcije i njegove primene u visokom strukovnom obrazovanju. Na osnovu teorijskih principa na kojima je zasnovan proces matematičkog modelovanja, osmi&scaron;ljen je način za implementaciju modelovanja u nastavni proces i kreirani su modeli za realizaciju obrade sadržaja iz oblasti izvoda funkcije i njegove primene. Predložen je i originalni pristup matematičkom modelovanju koji se realizuje u računarskom okruženju i istaknute su sve prednosti novog pristupa<br />koje&nbsp; se&nbsp; tiču&nbsp; realizacije&nbsp; nastavnog&nbsp; procesa&nbsp; i&nbsp; rezultata&nbsp; učenja&nbsp; i&nbsp; poučavanja.&nbsp; Disertacija&nbsp; se&nbsp; bavi&nbsp; i savremenim trendovima u obrazovanju nastavnika i njegovom unapređenju. Poseban akcenat je stavljen&nbsp; na&nbsp; osmi&scaron;ljavanje&nbsp; elemenata&nbsp; obuke&nbsp; nastavnika&nbsp; za&nbsp; primenu&nbsp; matematičkog&nbsp; modelovanja&nbsp; u &scaron;kolskoj praksi.<br />Istraživanje o efektima primene matematičkog modelovanja je sprovedeno u dva ciklusa. Prvi ciklus istraživanja je realizovan u periodu od 2009-2014. godine sa četiri generacije studenata strukovnih studija. U eksperimentu je učestvovalo ukupno 555 studenata organizovanih u paralelne grupe. U prvom&nbsp; ciklusu&nbsp; istraživanja&nbsp; je&nbsp; praćen&nbsp; uticaj&nbsp; primene&nbsp; matematičkog&nbsp; modelovanja&nbsp; na&nbsp; postignuća studenata iz oblasti izvoda funkcije i njegove primene. Od instrumenata primenjenih za ispitivanje postignuća&nbsp; studenata&nbsp; su&nbsp; kori&scaron;ćeni&nbsp; testovi&nbsp; znanja&nbsp; (kolokvijum&nbsp; i&nbsp; ispit)&nbsp; i&nbsp; anketa&nbsp; koja&nbsp; je&nbsp; ispitivala stavove studenata o realizaciji nastave matematike i njenoj korisnosti.<br />Drugi&nbsp; ciklus&nbsp; istraživanja&nbsp; je&nbsp; sproveden&nbsp; &scaron;kolske&nbsp; 2016/2017.&nbsp; godine.&nbsp; Eksperiment&nbsp; je&nbsp; realizovan&nbsp; sa paralelnim grupama u kojima su učestvovala 204 studenta Visoke&nbsp; tehničke &scaron;kole&nbsp; strukovnih&nbsp; studija.U&nbsp; drugom&nbsp; ciklusu&nbsp; istraživanja&nbsp; su&nbsp; ispitani&nbsp; efekti&nbsp; primene&nbsp; novog&nbsp; pristupa&nbsp; matematičkom modelovanju&nbsp; u&nbsp; računarskom&nbsp; okruženju&nbsp; na&nbsp; znanja&nbsp; studenata&nbsp; iz&nbsp; oblasti&nbsp; izvoda&nbsp; funkcije&nbsp; i&nbsp; njegovih primena (eksperimentalna grupa) i dobijeni rezultati su&nbsp; upoređeni sa rezultatima koje su studenti ostvarili&nbsp; kada&nbsp; je&nbsp; nastava&nbsp; realizovana&nbsp; primenom&nbsp; tradicionalnog&nbsp; ciklusa&nbsp; modelovanja&nbsp; (kontrolna<br />grupa).Na&nbsp; osnovu&nbsp; rezultata&nbsp; oba&nbsp; pedago&scaron;ka&nbsp; istraživanja,&nbsp; utvrđeno&nbsp; je&nbsp; da&nbsp; realizacija&nbsp; nastave&nbsp; matematike primenom matematičkog modelovanja, kao i matematičkog modelovanja u računarskom okruženju, na obradu pojma izvoda funkcije i njegovih primena&nbsp; ima značajan uticaj na kvalitet znanja studenata i ostvarenost optimalnih rezultata u učenju, razumevanju nastavnih sadržaja i nji hovoj primeni na re&scaron;avanje problema iz ove oblasti.</p> / <p>In the doctoral dissertation, pedagogical research is presented, which refers to the theoretical and experimental examination of the effects of the application of methodological approaches based on mathematical modeling in the field of the&nbsp; derivative of the function and its application in college education.<br />Based on the theoretical principles on which the process of mathematical modeling is based, a way has been devised for the implementation of modeling in the teaching process and models have been created for the teaching process in the field of function &nbsp; derivative and its applications. An original approach to mathematical modeling that is realized in a computer environment is also proposed, and all the advantages of the new &nbsp; approach concerning the realization of the teaching process and the results of learning and teaching are highlighted. The dissertation also deals with modern trends in teacher education and its improvement. Special emphasis is placed on designing elements&nbsp; of&nbsp; teacher&nbsp; training&nbsp; for&nbsp; the&nbsp; application&nbsp; of&nbsp; mathematical&nbsp; modeling&nbsp; in&nbsp; school&nbsp; practice.<br />The research on the effects of the application of mathematical modeling was conducted &nbsp; in two cycles. The first cycle of research was realized in the period from 2009-2014 with&nbsp; four generations of students. A total of 555 students organized in parallel groups participated in the experiment. In the&nbsp; first&nbsp; cycle&nbsp; of&nbsp; research,&nbsp; the&nbsp; influence&nbsp; of&nbsp; the&nbsp; application&nbsp; of&nbsp; mathematical&nbsp; modeling&nbsp; on&nbsp; the achievements of students in the field of function derivative and its applications was examined. Among the instruments used to examine students achievements, knowledge tests (colloquium and final&nbsp; exam)&nbsp; and&nbsp; a&nbsp; survey&nbsp; that&nbsp; examined&nbsp; students&#39;&nbsp; attitudes&nbsp; toward&nbsp; the&nbsp; teaching&nbsp; process&nbsp; and usefulness of mathematics were created and used.<br />The second cycle of research was conducted in the 2016/2017 school year. The experiment was realized&nbsp; with&nbsp; parallel&nbsp; groups&nbsp; in&nbsp; which&nbsp; participated&nbsp; 204&nbsp; students&nbsp; of&nbsp; the&nbsp; Technical&nbsp; College&nbsp; of Applied Sciences. In the second cycle of the research, the effects of applying a new approach to mathematical&nbsp; modeling&nbsp; in&nbsp; the&nbsp; computer&nbsp; environment&nbsp; on&nbsp; students&#39;&nbsp; knowledge&nbsp; of&nbsp; function derivative and its applications (experimental group) were examined and the obtained results were compared&nbsp; with&nbsp; the&nbsp; results&nbsp; achieved&nbsp; by&nbsp; students&nbsp; using&nbsp; traditional&nbsp; modeling&nbsp; cycle&nbsp; (the&nbsp; control group).<br />Based&nbsp; on&nbsp; the&nbsp; results&nbsp; obtained&nbsp; from&nbsp; both&nbsp; pedagogical&nbsp; researches,&nbsp; it&nbsp; was&nbsp; determined&nbsp; that&nbsp; the realization of teaching mathematics by applying mathematical modeling, as well as mathematical modeling&nbsp; in&nbsp; the&nbsp; computer&nbsp; environment,&nbsp; has&nbsp; a&nbsp; significant&nbsp; impact&nbsp; on&nbsp; the&nbsp; quality&nbsp; of&nbsp; students&#39; knowledge and the realization of optimal learning outcomes, and their application on solving the problems from this area.</p>

Denna undersökning syftar till att belysa vad som motiverar gymnasieelever att använda GeoGebra i matematiken. Vidare undersöktes även eventuella skillnader i motivation, både typ och grad, hos gymnasieelever som använder GeoGebra ofta respektive sällan i matematiken. Undersökningen grundar sig i motivationsteori och specifikt förväntan-värde teorin och utfördes med kvantitativa- och kvalitativa metoder. Datainsamlingen skedde med en enkät vilken besvarades av 72 gymnasieelever från fyra skolor i Norrbottens län, Stockholms län och Västra Götalands län. Resultatet från undersökningen visar att gymnasieelever främst motiveras av nytto- och kostnadsvärdet som GeoGebra medför. Med andra ord, att GeoGebra ger dem fördelar i matematiken genom att göra det enklare och mer tidseffektiv att hantera matematikproblem med hjälp av GeoGebra. Vidare så visade även resultatet att gymnasieelever som använder GeoGebra ofta motiverades mer av nyttan som verktyget medförde, än gymnasieelever som använder GeoGebra sällan motiverades av det. / The focus of this research was to enlighten what motivates high school students to make use of GeoGebra in mathematics studies. The research also aimed at finding out if there were any differences in motivation, both type and degree, between high school students who used GeoGebra frequently or rarely in mathematics studies. The study was based on motivational theory and more specific expectancy-value theory and used quantitative- and qualitative methods. The data collection was through a survey in which 72 high school students from four schools in Norrbottens county, Stockholms county and Västra Götalands county participated. The result from this study showed that the main reason why high school students are motivated to use GeoGebra in their mathematics studies is because of the utility and cost value the instrument entails. In other means, high school students use the programme because it's easier and more time efficient to solve mathematical problems with it. The study also showed that high school students who use GeoGebra more frequently in mathematics studies are more motivated by the utility value that the instrument brings, than high school students who only use GeoGebra sometimes were.

Nous avons développé et mis à l’épreuve des activités utilisant un registre basé sur des diagrammes lors de l’enseignement de la théorie de la relativité restreinte avec des élèves de terminale S. L’approche graphique est source de difficultés didactiques mais les potentialités didactiques peuvent être plus avantageuses. Une étude épistémologique sur les diagrammes utilisables en relativité restreinte permet de voir les liens importants entre les mathématiques et la genèse de la théorie. C’est le cas du diagramme de Minkowski. Nous avons également étudié les diagrammes de Brehme et de Loedel, créés beaucoup plus tard pour des raisons didactiques. Après les séances pilotes, nous avons développé un nouveau cadre théorique, permettant d’analyser plus finement les interactions développées par les élèves résolvant un problème utilisant des diagrammes en relativité restreinte. Nous avons modifié les espaces de travail mathématique (ETM) en rajoutant le cadre de rationalité de la physique à celui des mathématiques. Le cadre des ETM étendu nous a permis de concevoir plusieurs versions de séquences et de réaliser une analyse a priori de leur niveau de difficulté et a posteriori en étudiant des travaux d’élèves. L’analyse du travail de groupes d’élèves a été effectuée lors d’une séquence utilisant le diagramme de Minkowski avec GeoGebra, un logiciel de simulation graphique. Le degré de maitrise du diagramme de Minkowski a été évalué pour chaque élève du point de vue des mathématiques et de la physique. Les résultats sont prometteurs, ils montrent une appropriation réelle des concepts de la théorie de la relativité restreinte via une approche utilisant des diagrammes. / We tried to develop and test several activities using a register based on diagrams for teaching the special theory of relativity to S class of twelfth graders. The graphic approach may result it complications in learning. However, its educational potential can turn out to be more beneficial. An epistemological study on diagrams used in special relativity allowed us to report important links between mathematics and the genesis of the special theory of relativity. This is the case of the Minkowski diagram. We were also interested in two other diagrams, Brehme and Loedel, which were developed much more later for teaching purposes. Following experimental sessions, we developed a new theoretical frame to comprehensively analyse the interactions developed by students to solve a problem using diagrams in special relativity. We modified the mathematical working spaces (MWS) by adding a new frame of rationality to the existing mathematic workspace to physics. The extended frame of the MWS allowed us to plan several versions of sequences proposed to the students and realize a priori analysis of their difficulty level and a posteriori study by analysing pupils' works. We have considered several works of student groups during a sequence using the Minkowski diagram with GeoGebra, a graphic simulation software. It allowed us to estimate the degree of control of the Minkowski diagram for every student, both from the frame of rationality of the mathematics and the physical sciences’ point of view. The results are promising and they tend to show a real appropriation of the concepts of the special theory of relativity with an approach using diagrams.

An aim of this diploma thesis is to create interactive descriptive geometry coursebook. As a basis for coursebook creation was used "Present State of Descriptive Geometry Education on High Schools Survey" which was proceeded via questionnaire. Before the creation of coursebook itself were made analyses of accessible textbooks, geometric softwares in use and possible environments for coursebook content presentation. A result is integrated part of subject matter taught on high schools complemented by solved examples and interactive applets created in software GeoGebra. The coursebook content is presented in a form of HTML sites on a public website http://www.sadsam.cz/dg/ and also as an off- line version on DVD disc enclosed.

This thesis aims to serve as a tool for teaching financial mathematics in Mathematics lessons at higher grades of primary schools and mainly in secondary schools. The first part contains an analysis of school documents, results of survey aimed at financial literacy and available textbooks. The second part presents the supporting teaching tools in the form of applets created using the GeoGebra programme. Applets are aimed at money exchanging, interests types, loans, savings and a household budget creating. Each applet is presented by being used in a specific exercise. Powered by TCPDF (www.tcpdf.org)

Diplomová práce se zabývá využitím programu GeoGebra ve výuce ma- tematiky, konkrétně v tématu konstrukce trojúhelník·. Cílem práce bylo na- vrhnout přípravu na hodiny výuky konstrukce trojúhelník· s využitím pro- gramu GeoGebra a následně ověřit, zda využití softwaru dynamické geometrie mělo vliv na zvládnutí nového učiva. Teoretická část obsahuje použité pojmy z planimetrie. V dalších dvou kapitolách se čtenář seznámí s programem GeoGebra a GeoTest a některými výzkumy, které jsou zaměřené na použití program· dynamické geometrie ve výuce matematiky. Následuje kapitola se- znamující s úlohami, které jsou v experimentu využity, a popisuje přípravu jednotlivých hodin. Poslední část je věnovaná pr·běhu experimentu, srovnání výsledk· žák· pomocí test· s kontrolní třídou. Získaná data jsou zpracována na základě pozorování a test·. Výsledky pozorování a analýzy potvrzují, že GeoGebra je vhodným doplňkem výuky konstrukce trojúhelník·. 1

The aim of this work is to introduce and assess the potential of using GeoGebra software on multiple levels of mathematical education process and to analyze the expectation of pupils and students using this program. A reader is introduced to GeoGebra program itself and to various researches and articles sharing this common topic - usage of dynamic geometry educational programs and GeoGebra in mathematical education. This work is supported by two field researches that were carried out at the second stage of an elementary school and by another reseach made with students of mathematical education at the Charles University, the Faculty of Education. Next part of this work presents and covers more possibilities of using this program in the educational process of the second stage of elementary schools, and it also shows various options the program offers not just for teaching of mathematics, but also for other fields.