Made available in DSpace on 2016-04-27T16:59:00Z (GMT). No. of bitstreams: 1 Rubens de Souza Cabral Junior.pdf: 674945 bytes, checksum: a7b08caccbe5458769ea2ebaed6c2e34 (MD5) Previous issue date: 2009-12-02 / Secretaria da Educação do Estado de São Paulo / The research had as objective to check what are the contributions and difficulties of teachers in planning and developing a hypothetical learning trajectory (HLT) about basic knowledge of probability for high school students. The justification of our research agrees with Simon s statement (1995) that there are a lot of researches in the area of learning with constructivists approach, but very little of their results are incorporated in the classes of teachers. Initially, we did a bibliographic review of the works whose theme is the process of teaching and learning of probability. From these results we made a sequence of teaching probability which we show for three teachers develop with their students, being on tenterhooks to consider the HLT and, at the same time, create new hypotheses about the process of teaching and learning of probabilities. The research shows that teachers who took part in the study have knowledge about the Laplace s approach in introduction of the concept of probability, however they need theoretical support about the possibility of learning basic knowledge of probability using the differences of frequentist and Laplace focus. This fact limited their contributions in the elaboration and development of HLT, leading teachers to a more contemplative than criticism attitude in relation to activities presented / A investigação realizada teve como objetivo verificar quais são as contribuições e dificuldades dos professores em planejar e desenvolver uma trajetória hipotética de aprendizagem (THA) sobre noções iniciais de probabilidade para alunos do Ensino Médio. A justificativa da nossa pesquisa do tipo qualitativa vai ao encontro do que afirma Simon (1995), de que existem muitos trabalhos na área de aprendizagem com abordagem construtivista, porém muito pouco dos seus resultados está incorporado nas elaborações de aulas dos professores. Sendo assim, efetuamos, inicialmente, uma revisão bibliográfica dos trabalhos que têm como tema o processo de ensino e aprendizagem de probabilidade. A partir desses resultados, elaboramos uma sequência de ensino de probabilidade, que foi apresentada para três professores desenvolverem com os alunos, na expectativa de avaliar a THA e ao mesmo tempo elaborar novas hipóteses sobre o processo de ensino e aprendizagem de probabilidades. A pesquisa nos mostra que os professores que participaram do estudo têm conhecimento da abordagem laplaciana na introdução do conceito de probabilidade, no entanto carecem de embasamento teórico sobre a possibilidade de apreensão da noção de probabilidade utilizando-se da confrontação dos enfoques frequentista e laplaciano. Este fato limitou as suas contribuições na elaboração e desenvolvimento da THA, conduzindo os professores a uma atitude mais contemplativa do que crítica em relação às atividades apresentadas

Made available in DSpace on 2016-04-27T16:59:01Z (GMT). No. of bitstreams: 1 Americo Augusto Barbosa.pdf: 1871211 bytes, checksum: b1d025c51844683af5341ce09c48231b (MD5) Previous issue date: 2009-12-08 / Secretaria da Educação do Estado de São Paulo / This dissertation is part of the research project developed by researchers at the Pontifícia Universidade Católica of Sao Paulo, which seeks to develop support materials and curricular innovations to school, taking reference to the notion of Hypothetical Learning Trajectories (THA), a concept used by Dr Simon (1995) as part of the 'model' Cycle of Teaching and Learning of Mathematics. The objective of this research is to analyze the possibility of reconciling perspectives of learning by teaching plans related to the reasons and trigonometric functions and verify the performance of a mathematics teacher in front of a proposal aimed at teaching a constructivist perspective. To answer our questions we developed a qualitative study, collecting data through contents the observation of lessons with teachers and students from three different groups of 2nd year high school public school Education of the State of Sao Paulo. The results indicate that: it is possible to reconcile learning perspective with the planning of education and how important the work of mathematics teacher for learning to occur. We conclude that not just one good result of education, interaction and participation among students and teachers are the main instruments to be made effective a significant learning in a constructivist perspective / Esta Dissertação faz parte do projeto de pesquisa desenvolvido por pesquisadores da Pontifícia Universidade Católica de São Paulo, que procura desenvolver materiais de apoio e inovações curriculares para o Ensino Médio, tomando com referência a noção de Trajetórias Hipotéticas de Aprendizagem (THA), conceito utilizado pelo pesquisador Simon (1995) como parte do modelo de Ciclo de Ensino e de Aprendizagem de Matemática. O objetivo da pesquisa é analisar a possibilidade de compatibilizar perspectivas de aprendizagem com a planificação de ensino relacionada às razões e às funções trigonométricas e verificar a atuação do professor de matemática diante de uma proposta de ensino visando uma perspectiva construtivista. Para responder às nossas questões desenvolvemos uma pesquisa de caráter qualitativo, coletando os dados por meio de relatórios de observação das aulas com professores e alunos de três diferentes turmas de 2º ano do Ensino Médio da rede pública do Ensino Oficial do Estado de São Paulo. Os resultados obtidos indicam que: é possível compatibilizar perspectiva de aprendizagem com a planificação de ensino, e o quanto é importante a atuação do professor de matemática para que ocorra aprendizagem. Concluímos que não basta uma boa sequência de ensino, a interação e a participação entre alunos e professores são os principais instrumentos para que se efetive uma aprendizagem significativa numa perspectiva construtivista

Σκοπός της παρούσης έρευνας είναι η μελέτη της συνεισφοράς που μπορεί να έχει η διδασκαλία μέσω επίλυσης προβλήματος στην κατανόηση των ανισώσεων και στην ανάπτυξη της ικανότητας μοντελοποίησης από μαθητές της Β΄ Γυμνασίου. Σχεδιάστηκε ένα οιονεί πείραμα που αφορούσε τη διαφοροποιημένη διδασκαλία του κεφαλαίου των ανισώσεων σε δύο τμήματα 17 μαθητών (πειραματική ομάδα και ομάδα ελέγχου). Αξιολογήθηκαν η κατάκτηση του γνωστικού αντικειμένου και η ικανότητα μοντελοποίησης-επίλυσης μιας κατάστασης-προβλήματος μέσω γραπτής δοκιμασίας, ενώ διενεργήθηκαν και συνεντεύξεις. Παράλληλα σκοπός μας ήταν η διερεύνηση της ικανότητας μοντελοποίησης-επίλυσης μιας κατάστασης-προβλήματος ενός ευρύτερου δείγματος μαθητών Β΄ Γυμνασίου, σχολείων αγροτικής, ημιαστικής και αστικής περιοχής. Πραγματοποιήθηκε επισκόπηση σε ένα δείγμα 39, 48 και 53 μαθητών αντίστοιχα, οι οποίοι κλήθηκαν να αντιμετωπίσουν γραπτώς μια κατάσταση-πρόβλημα, ενώ επίσης διενεργήθηκαν συνεντεύξεις. Από την ποσοτική και ποιοτική ανάλυση των αποτελεσμάτων προκύπτει ότι οι μαθητές μεσαίας επίδοσης είναι αυτοί που κυρίως επωφελήθηκαν από την διδασκαλία μέσω επίλυσης προβλήματος. Επιβεβαιώθηκε η διάκριση τεσσάρων επιπέδων ανάπτυξης στην ικανότητα δόμησης και χρήσης μαθηματικών μοντέλων από μέρους των μαθητών, ενώ κατέστησαν εμφανείς οι μεγάλες δυσκολίες που αντιμετωπίζουν οι τελευταίοι στην ανωτέρω διαδικασία. / The purpose of this research is to study the contribution of teaching through problem solving, in understanding inequalities and in the development of modeling capacity by students of the 2nd high school. A quasi-experiment was designed on differentiated instruction of inequalities in two classes of 17 students (experimental and control group). The achievement of the knowledge object and the ability to resolve a problem situation through mathematical modeling, were assessed by means of a written test and interviews. At the same time, our aim was to investigate the modeling capacity of a larger sample of 2nd high school students, of rural, suburban and urban schools. A survey was carried out in a sample of 39, 48 and 53 students respectively, who were invited to address a problem situation in writing, while interviews were also conducted. The quantitative and qualitative analysis of the results shows that medium performance students were the ones who largely benefited from the “teaching through problem solving” approach. The identification of four levels in the development of constructing and using mathematical models was confirmed, while became apparent major problems faced by the students in the above process.