Recent trends show that learners’ enrolment and performance in science at secondary school level is dwindling. Some science topics including genetics in biology are said to be difficult for learners to learn and thus they perform poorly in examinations. Teacher knowledge base, particularly topic-specific pedagogical content knowledge (PCK), has been identified by many researchers as an important factor that is linked with learner understanding and achievement in science. This qualitative study was an attempt to explore the PCK of four successful biology teachers and how they developed it in the context of teaching genetics. The purposive sampling technique was employed to select the participating teachers based on their schools’ performance in biology public examinations and recommendations by science specialists and school principals. Pedagogical content knowledge was used as a theoretical framework for the study, which guided the inquiry in data collection, analysis and discussion of the research findings. The study adopted the case study method and various sources of evidence including concept maps, lesson plans, pre-lesson interviews, lesson observations, post-teaching teacher questionnaire, post-lesson interviews and document analysis were used to collect data on teachers’ PCK as well as how PCK was assumed to have developed. The data were analysed in an attempt to determine the individual teachers’ school genetics’ content knowledge, related knowledge of instructional strategies and knowledge of learners’ preconceptions and learning difficulties. The analysis involved an iterative process of coding data into PCK categories of content knowledge, pedagogical knowledge and knowledge of learners’ preconceptions and learning difficulties. The findings of the study indicate that the four successful biology teachers generally have the necessary content knowledge of school genetics, used certain topic-specific instructional strategies, but lacked knowledge of genetics-related learners’ preconceptions and learning difficulties despite having taught the topic for many years. There were some instructional deficits in their approaches and techniques in teaching genetics. The teachers failed to use physical models, teacher demonstration and/or learner experimentation in their lessons (or include them in their lesson plans) to assist learners in visualizing or internalizing the genetics concepts or processes located at the sub-microscopic level. The teachers’ PCK in genetics teaching was assumed to have developed mainly through formal university education programmes, classroom teaching experiences, peer support and participation in in-service workshops. The implications for biology teacher education are also discussed. / Thesis (PhD)--University of Pretoria, 2014. / lk2014 / Humanities Education / PhD / Unrestricted

This study is concerned with the development of subject knowledge in pre-service teachers of secondary physical education (PE) during their one year Physical Education Teacher Education (PETE) course. It investigates the knowledge bases for teaching which pre-service teachers recognised, developed and prioritised, as well as the key influences that impacted on their subject knowledge development. Adopting an interpretive methodology informed by constructivist grounded theory, the study employed interviews, lesson observations and post-lesson reflections as principal research methods. Pre-service teachers were seen to make wide-ranging progress in their subject knowledge, including the development of content knowledge, pedagogical content knowledge, general pedagogical knowledge, knowledge of curriculum and knowledge of pupils. Through this they advanced their view of the nature of PE and how they wanted to teach it. The research highlights, that the process of knowledge development in PETE is socially constructed and complex. Much of the pre-service teachers development was influenced by various communities of practice, particularly their school placements PE departments, but also their University-based learning community. Of these, the legitimised practices within the PE departments were found to be especially important to pre-service teachers development. University-based learning was credited by pre-service teachers with enhancing their holistic understanding of the learning process, developing those aspects of critical pedagogy that were under-developed in schools. The impact of different subject knowledge profiles and the consequences of knowledge deficits are identified. This raises questions about the role and development of subject knowledge within PETE and calls for a re-vitalised debate on the nature of the knowledge in PE. Framed within an ever-changing policy landscape is the need for enhanced and stable partnerships that promote shared visions of PETE, an essential part of which is the need to collaboratively design and evaluate explicit knowledge development pathways which allow pre-service teachers to fulfil their potential and genuinely decide how they want to teach PE.

Philosophiae Doctor - PhD / Libya, as one of the third world countries, is struggling to address the issue of transformation and various institutional reforms (including the education system). For example, it has been observed that many biology teachers are faced with challenges relating to both subject matter knowledge (SMK) and pedagogical content knowledge (PCK) yet the expectation of the new curriculum is that biology teachers demonstrate professional efficacy in their work regardless of the challenges they face. In light of this, a group of Libyan secondary school biology teachers was investigated in Tripoli through a participatory action research process. The study was underpinned by the Shulman theory of PCK using a mixed-methods design to generate an understanding of the theory of basic knowledge of teaching.

The thesis deals with questions of how the purpose and content in the Swedish school subject Sloyd can be understood in the present, some years after a new curriculum came into effect in 2011. Through sloyd teachers’ stories of their knowledge and the historical traces that have left a mark on their teaching, such as older syllabuses and mediated experiences, the intention is to examine the pedagogical thinking that forms the classroom’s activities. The overall purpose is to develop knowledge of what shapes the design of sloyd, based on how the subject is expressed in the syllabus and in teachers' understandings of teaching and the subject. Based on previous knowledge and interviews, a hermeneutic research process has been designed and developed over time. Seventeen semi-structured interviews with textiles teachers where conducted, recorded and transcribed for the study. The hermeneutic interpretation process involved repeatedly reading and listening, and the material was coded using the digital analysis tool ATLAS.ti. Through repeated reading of the codes, three overarching themes were found: Textiles teachers' perceptions of Sloyd’s purpose and content, Textiles teachers’ teaching, and Manual and intellectual work in unity. The perspective of curriculum theory using a frame factor model is intended to highlight how Sloyd manifests itself at different levels of interpretation, which may impact how sloyd takes shape in the classroom. For a functional perspective on the study's data, didactic theory is used with a focus on subject didactics. The transformation phase is central to the shaping of Sloyd, where teachers’ beliefs and perceptions about the subject will influence their interpretation of the syllabus. Shulman's model of pedagogical thinking and action linked to pedagogical content knowledge, PCK, form the basis for the analysis together with theoretical perspectives on teachers’ pedagogical thinking as Kansanen and Hansén describes it. In summary, two levels of pedagogical thinking are distinguished by analysis. Firstly, based on those teachers who transform and implement teaching in sloyd based on an interpretation that follows the syllabus closely, and secondly, based on those who proceed from an interpretation that is closer to sloyd’s field of knowledge, based on handicraft. This results in two subject conceptions relating to sloyd. Teachers can ascribe to one of these, or move between them in the different phases of pedagogical planning and reflection. The conclusions also include an understanding of why the knowledge requirements in the syllabus largely relate to the students expressing themselves in words regarding their learning and their choices during the process. The curriculum is results-oriented and the knowledge that is evaluated must therefore be measurable and comparable, and be made possible to learn through the subject content. It can also be interpreted as an approximation of a practical knowledge culture to a theoretical knowledge culture, and therefore a legitimation of a practical subject in the school context that elementary school constitutes.

The implementation of a new curriculum is a challenging issue to educators in many countries. In this country training for an implementation of a curriculum is done in one week and it takes a form of one a size fits all. The study investigated how I transform my content knowledge when teaching a new topic in the new curriculum. The aim of this study was to carry a self- study of how I transformed my content knowledge when teaching energy resources and its uses to make it comprehensible to learners. The following research question guided the study:  How did my PCK develop as I developed the broad content of the energy resources and its uses into focused, teachable and comprehensible content?  How did my planning and reflecting on practice change as I participated in the process of planning, developing and implementing the lesson plans? When teachers teach, they draw upon knowledge of their subject matter, general pedagogy as well as context. This could be improved by the contribution of the concept of pedagogical content knowledge where content and pedagogy are blended. Therefore, for this study I have chosen PCK as a theoretical framework because I will be looking at how my content knowledge can be transformed into content knowledge for teaching. The study employed a qualitative research, which uses multiple realities that are socially constructed through collective and individual definitions of the situations. It is a self –study focusing on my own teaching and intending to improve my practice as a teacher. The focus is myself teaching two grade 11 classes in a township school. Khumalo M. iv Data was collected in a form of concept maps, reflective journals, lesson plan and CoRE s and PaPeRs. CoRes and PaPe-Rs were used to capture and portray my PCK. The methodological tools used to document and portray my Pedagogical Content Knowledge when teaching energy and resources, used representations called Content Representation (CoRe) and Pedagogical and Professional – experience Repertoires (PaP-eRs). The CoRe elaborated on my construction of content, which framed the topic and each Pa-PeR, was a narrative derived from the classroom observations and the journal. Findings in this study indicate that using the CoRe and PaPeR as a tool to portray PCK helps in the development of content knowledge. Some elements of PCK could be identified and the implementation of developed lessons led to insight into my teaching. Learners participated more freely and develop confidence when home language was used. I gained confidence using the CoRe to develop lessons.

The South African government that was elected in 1994 made tremendous changes in the Education system. The new government came up with the new curriculum for Basic Education (grade R- 12). The new curriculum had new topics in physical science. This made me as a teacher doubt whether I would be able to teach new topics. During my time as a student, I was not taught mining at school or college. As a result, I decided to do a self study in order to investigate how I would learn gold mining as a topic in order for me to be able to teach it to my learners. My study involved studying my own teaching practice while learning and also finding out the key things that made me understand the content knowledge involved in the topic of gold mining. The self study was done in order to ensure that I understood the content knowledge and how best to teach it to the learners. I used a collaboration team, reflective journal, group interviews classroom observation and learners’ responses to collect data. The participants were my grade 11 learners and myself. My data was analysed using a PCK model, CoRes and PaPeRs. I had to learn the content knowledge and transform it to make it understandable to learners. I designed lessons using the prior knowledge of learners and integrating Physical Science and Geography. Lessons did not go as smoothly as I had expected. Learners wanted some of their existing knowledge to be included. The classroom activities depended entirely on the relationship between the teacher and learners. I carried out my study bearing in mind that implementation of the new curriculum depends not only on classroom interactions (DoE, 2002) but most importantly on the content knowledge that the teacher has and how it is transformed. Learners taught me to understand gold mining from the geographical point of view as well from the scientific point of view. From the beginning of the study they were really excited and were looking forward to new things. Using the learners’ science prior knowledge helped me design lessons that allowed me to learn to be a facilitator.

Este trabalho visou ampliar os conhecimentos sobre avaliação em longo prazo de cursos de formação continuada para docente em Educação a Distância (EaD), enfocando Ensino de Botânica e percepção de professores da rede pública estadual de São Paulo sobre aspectos do Conhecimento Pedagógico do Conteúdo (PCK). O objetivo específico foi avaliar a percepção dos docentes participantes de uma disciplina de Botânica, inserida no curso de especialização para professores de Biologia (EspBio), pertencente ao programa REDEFOR (Rede São Paulo de Formação Docente), em relação às influências de tal disciplina na prática docente atual, sobre alguns aspectos relacionados ao PCK, segundo o modelo de Rollnick et al. (2008): 1. Conhecimento Específico de Botânica; 2. Importância da Botânica no Ensino Médio; 3. Escolha de Práticas de Ensino, Estratégias e Materiais Didáticos; 4. Seleção dos Conteúdos Específicos; 5. Dificuldades dos Alunos em relação à aprendizagem de Botânica. Visando atingir tais objetivos, utilizamos como instrumento de coleta de dados questionários virtuais distribuídos para todos os participantes (cerca de 800) das duas versões (2010/2011 e 2011/2012) do curso, onde obtivemos retorno de 75 deles, ou seja, uma taxa de resposta de 9,3%. As respostas das oito questões foram submetidas à análise de conteúdo segundo Bardin (2009), onde os dados foram agrupados em cinco Eixos de Análises (EA), correspondentes aos aspectos do PCK destacados nos objetivos específicos. Os principais achados referentes a esses eixos são: EA1. 93% dos participantes declararam que houve ampliação em seu conhecimento específico sobre Botânica a partir da disciplina e destacaram, principalmente, o aprimoramento conceitual e a influência positiva em suas práticas docentes, que se tornaram mais dinâmicas, contextualizadas, motivadoras e com caráter mais prático, bem como se tornaram mais confiantes para ensinar a temática; EA2. A importância de ensinar Botânica, principalmente associada a relação das plantas com nosso cotidiano e com as questões ambientais e ecológicas, foi amplamente reconhecida pelos professores (93%), bem como a influência da disciplina nessa valorização (67%). Porém, 33% não declarou tal influência, visto que já possuíam esta ideia antes da disciplina; EA 3. Grande parte dos professores (76%) destacou a influência da disciplina na prática docente atual, tanto por utilizar recursos e estratégias disponibilizados na mesma (72%), quanto por ter obtido inspiração para novas abordagens (63%), como aulas mais práticas, dinâmicas e contextualizadas. 17% dos professores tiveram dificuldades para implementar as propostas apresentadas pela disciplina, principalmente devido a entraves do contexto de ensino. EA 4. A influência da disciplina Botânica na seleção de conteúdos conceituais foi relatada por 64% dos professores, que descreveram mudanças relacionadas com as formas de trabalhar os conteúdos (estratégias, recursos e abordagens), e não relacionadas à sua seleção propriamente dita, mas destacaram a melhora no conhecimento de Botânica, que permitiu mudanças positivas na seleção e abordagem desses conteúdos em sala de aula. Já 29% dos docentes não relataram mudanças após a disciplina e isso foi, em grande parte, justificado pela pouca flexibilidade curricular no contexto de alguns professores ou por condições ruins de trabalho docente. EA 5. 73% dos participantes declararam que a disciplina os ajudou a refletir sobre as dificuldades específicas que os alunos enfrentam ao estudar Botânica, onde relatos foram destacados para diminuir as dificuldades de seus alunos, buscando um processo de ensino e aprendizagem mais dinâmico e contextualizado, que valorize as concepções iniciais dos estudantes. Quanto aos temas específicos: evolução, filogenia, fotossíntese e ciclos reprodutivos foram considerados pelos professores como aqueles de aprendizagem mais difícil. Assim, pudemos detectar, nos diferentes EA, elementos ligados às manifestações presentes no modelo de PCK de Rollnick et al. (2008), principalmente Estratégias Instrucionais de um Conteúdo Específico, Representações e Saliência Curricular, indicando que os conhecimentos docentes foram mobilizados prática docente. Nosso estudo aponta a necessidade de valorizar e investir no aprimoramento do PCK de Botânica em cursos de formação continuada de professores no contexto brasileiro, sendo a EaD uma alternativa viável e importante. O professor necessita de outros conhecimentos associados, além do específico, como o conhecimento dos alunos, do contexto e pedagógico geral, para ter melhores condições de desenvolver e refletir sobre sua prática docente / This dissertation aimed to broaden the knowledge about the long-term evaluation of continuing courses for Distance Education, gathering Botanical teaching and the perception of teachers of public São Paulo state network schools about the aspects of Pedagogical Content Knowledge (PCK). The specific objective was to evaluate the perception of these teachers who participated in the Botanical discipline - part of the specialization course of Biology teaching (EspBio) and also part of the program REDEFOR (Rede São Paulo de Formação Docente) - about the influence of such discipline in their current teaching practice, analyzed through the aspects related to PCK, according to Rollnich et al. (2008) model: 1. Specialized knowledge of Botanic; 2. The importance of Botanical teaching in high school; 3. Choice of Teaching Practices, Strategies, and Didactic Materials; 4. Selection of Specific Contents; 5. Difficulties of the Students related to Botanic learning. In order to achieve these objectives, we used virtual questionnaires given to all participants (about 800) of the two versions (2010/2011 and 2011/2012) of the course, and we obtained a return of 75 participants, a response rate of 9.3%. The responses of the eight questions were submitted to the content analysis according to Bardin (2009), where the data were grouped into five Analysis Axes (EA), corresponding to the aspects of the PCK highlighted in the specific objective above. The main findings regarding these axes are: EA1. 93% of the participants declared that there was an increase in their knowledge about Botanic after they did the discipline, mainly, in the conceptual improvement and positive influence in their teaching practices, which became more dynamic, contextual, motivating and more practical, as well as they become more confident to teach the subject; EA2. The importance of teaching Botanic, mainly associated with the relation of plants to our daily life and with the environmental and ecological issues, was widely recognized by teachers (93%), as well as the influence of the discipline in this valorization (67%). However, 33% did not declare such influence, since they already had this idea before the discipline; EA 3. A big portion of the teachers (76%) emphasized the influence of the discipline in their current teaching practice, both for using resources and strategies already available in this discipline (72%), and for having been inspired by its new approaches (63%), such as had more practical, dynamic and contextualized teaching classes. 17% of the teachers had difficulties in implementing the proposals presented by the discipline, mainly due to obstacles in the teaching context. EA 4. The influence of the Botanic discipline on their selection of conceptual content was reported by 64% of the teachers and they described these changes related to the way of working contents (strategies, resources and approaches), not related to their selection, but also noticed the improvement in their Botanical knowledge, which allowed positive changes in the selection and approach of these contents in the classroom. 29% did not report changes after taking the discipline and this was, for the most part, justified by their lack of curricular flexibility in the context of some teachers or poor conditions of teaching work. EA 5. 73% of the participants stated that the discipline helped them to think about the specific difficulties students may face when studying Botanic, where reports were highlighted to reduce the difficulties of their students, seeking a more dynamic and contextualized teaching and learning process, that values the learning concepts of their students. Specific subjects like evolution, phylogeny, photosynthesis and reproductive cycles were considered by teachers as those of more difficult learning process. Thus, we could detect, in the different AE, elements linked to the manifestations present in the PCK model of Rollnick et al. (2008), mainly Instructional Strategies of a Specific Content, Representations and Curriculum Outline, indicating that teaching knowledge was in fact mobilized. Our study points out the need to value and invest in the improvement of Botanic PCK model for continuing teaching courses in the Brazilian context, and the EaD is a viable and valuable alternative path. The teacher needs other associated knowledge, as well as specific knowledge, such as students\' knowledge, context, and general pedagogy, in order to have better conditions to develop and influence their teaching practice

Este estudo situa-se no âmbito das propostas sintonizadas com novos paradigmas de formação inicial de professores, onde a profissionalização docente é vista como um processo dinâmico e interativo que se apóia em saberes específicos. O contexto investigado foi a disciplina Estágio I do Curso de Ciências Biológicas de uma Universidade Federal, cuja estrutura baseou-se na perspectiva Ecológica de Formação, na qual o ambiente de supervisão leva em conta que a aprendizagem da docência implica redes de saberes, reconhecendo a importância dos contextos profissionalizantes significativos para o licenciando (a instituição de formação, a sala de aula e a escola). Partindo desses pressupostos, o foco dessa investigação visou compreender de que maneira os processos instaurados em um Ambiente de Supervisão, planejado em uma perspectiva Ecológica de formação, são capazes de confrontar as crenças dos futuros professores sobre a prática docente e contribuir para a elaboração de conhecimentos e saberes profissionais dos licenciandos. Utilizamos nesse estudo a estratégia metodológica do estudo de caso, analisando três sujeitos. Dividimos essa investigação em fases (pré-ativa, ativa e pós-ativa) visando facilitar o acesso ao pensamento do licenciando ao longo da disciplina. Durante este período, acompanhamos seus movimentos por meio de suas reflexões escritas sob forma de diário virtual, das reuniões entre supervisor e licenciando e entrevistas e apresentações gravadas em áudio e vídeo e, áudio, além de instrumentos específicos para crenças educacionais (DASTT) e para o aferimento de crenças de eficácia (STEBI). A análise dos dados foi realizada sob a perspectiva do interacionismo interpretativo, o que implica assumir a relação entre pesquisador, sujeitos e objeto de pesquisa como intrinsecamente subjetiva, onde a compreensão de um dado fenômeno só é possível a partir de processo mútuo e socialmente compartilhado, dos quais emergem os significados e os sentidos. Nossos resultados mostram que houve aprendizagem da docência na interação e adaptação dos indivíduos ao seu ambiente de atuação, no qual articularam, por meio do raciocínio pedagógico, suas crenças anteriores sobre seus professores, suas vivências como alunos, os dilemas experienciados em situações inesperadas na prática, acabando por definir sua posição didática durante a transposição do tópico de ensino em sala de aula. Evidenciaram assim, elementos relativos ao Conhecimento pedagógico do conteúdo, e conseqüentemente, os saberes docentes inerentes aos aspectos didáticos gerais e pessoais, disciplinares e sobre o contexto. Esse estudo demonstra que o diálogo entre teoria e prática dentro de um ambiente de supervisão ecológico viabiliza a concretização de processos reflexivos sistemáticos nas ações empreendidas pelos licenciandos, de forma que suas crenças educacionais possam ser acessadas, suas crenças de eficácia se fortaleçam, e sua articulação em um raciocínio pedagógico possa construir saberes docentes. Outra contribuição é auxiliar na definição de um nicho de pesquisa específico sobre as crenças educacionais dos futuros professores de Ciências e Biologia, de forma que outros estudos na mesma direção possam compor uma fundamentação sólida, que implique em programas de formação cuja visão holística tenha impacto no desenvolvimento inicial dos futuros professores, repercutindo na melhoria do ensino e da aprendizagem. / This study locates in the extent of the proposals attuned to new paradigms of teachers initial formation, where professionalization is seen as a dynamic and interactive process. The context of this study was the subject Estágio (Traineeship) I of the Course of Biological Sciences in a University, whose structure was based on an Ecological Training perspective, where the supervision environment takes into account that the learning to teach involves networks of knowledge and knowing, recognizing the importance of professional meaningful contexts for trainee (teacher formation institutions, the classroom and Traineeship schools). Assuming these assumptions, the focus of this research aimed to understand how the proceedings planned in a Supervision environment from the ecological training perspective are able to confront the preservice teachers beliefs on teaching practice, and contribute to elaboration of the future science teachers professional knowledge and knowing. Aiming to answer the proposed question, we used in this research the case study as a methodological strategy for examining three subjects. This investigation was structured in blocks, (Teaching Training, Workshop on Environmental Education (EE) Training, and Research Training), whose the structural core was the systematic reflection. It was divided into phases (pre-active, active and post-active), to facilitate access to the trainees thoughts along the course. During this period, we followed the trainees movements, through their reflections written in the virtual diary form, meetings between supervisor and trainee, presentations and interviews recorded in audio, video and audio only, as well as specific tools to educational beliefs (DASTT), and for efficacy measures benchmarking (STEBI). The data analysis was performed from the perspective of interpretive interactionism, thereby assuming the relationship between researcher, subject and object as inherently subjective, in which the understanding of a particular phenomenon is only possible through mutual process socially shared of which emerge from the meanings and senses. Our results show that has been teaching learning in the individuals interaction and adaptation to their environment of acting, in which articulated through the pedagogical reasoning, their prior beliefs about their teachers, their experiences as a student, the dilemmas experienced in unexpected in practical situations, and ultimately define their teaching position at the didactic transposition in the classroom. Thus, they revealed issues related to pedagogical content knowledge (PCK), and, consequently, the teacher\'s knowledge inherent to personal and general instructional aspects, disciplinary action and the context. This study shows that the dialogue between theory and practice within an ecological supervision environment, enables the implementation of systematic reflexive processes in actions taken by trainees, in such a way that their educational beliefs can be accessed, their efficacy beliefs can be improved, and, their articulation in a consistent pedagogical reasoning can build their knowledge and teachers experiences. Another contribution is to assist in defining a specific research niche on the preservice science teachers educational beliefs, so that other researches in the same direction can compose a solid foundation, involving training programs, whose impact on a holistic view will enable the professional development of trainees, resulting in improvements in teaching and learning.

Este estudo situa-se no âmbito das propostas sintonizadas com novos paradigmas de formação inicial de professores, onde a profissionalização docente é vista como um processo dinâmico e interativo que se apóia em saberes específicos. O contexto investigado foi a disciplina Estágio I do Curso de Ciências Biológicas de uma Universidade Federal, cuja estrutura baseou-se na perspectiva Ecológica de Formação, na qual o ambiente de supervisão leva em conta que a aprendizagem da docência implica redes de saberes, reconhecendo a importância dos contextos profissionalizantes significativos para o licenciando (a instituição de formação, a sala de aula e a escola). Partindo desses pressupostos, o foco dessa investigação visou compreender de que maneira os processos instaurados em um Ambiente de Supervisão, planejado em uma perspectiva Ecológica de formação, são capazes de confrontar as crenças dos futuros professores sobre a prática docente e contribuir para a elaboração de conhecimentos e saberes profissionais dos licenciandos. Utilizamos nesse estudo a estratégia metodológica do estudo de caso, analisando três sujeitos. Dividimos essa investigação em fases (pré-ativa, ativa e pós-ativa) visando facilitar o acesso ao pensamento do licenciando ao longo da disciplina. Durante este período, acompanhamos seus movimentos por meio de suas reflexões escritas sob forma de diário virtual, das reuniões entre supervisor e licenciando e entrevistas e apresentações gravadas em áudio e vídeo e, áudio, além de instrumentos específicos para crenças educacionais (DASTT) e para o aferimento de crenças de eficácia (STEBI). A análise dos dados foi realizada sob a perspectiva do interacionismo interpretativo, o que implica assumir a relação entre pesquisador, sujeitos e objeto de pesquisa como intrinsecamente subjetiva, onde a compreensão de um dado fenômeno só é possível a partir de processo mútuo e socialmente compartilhado, dos quais emergem os significados e os sentidos. Nossos resultados mostram que houve aprendizagem da docência na interação e adaptação dos indivíduos ao seu ambiente de atuação, no qual articularam, por meio do raciocínio pedagógico, suas crenças anteriores sobre seus professores, suas vivências como alunos, os dilemas experienciados em situações inesperadas na prática, acabando por definir sua posição didática durante a transposição do tópico de ensino em sala de aula. Evidenciaram assim, elementos relativos ao Conhecimento pedagógico do conteúdo, e conseqüentemente, os saberes docentes inerentes aos aspectos didáticos gerais e pessoais, disciplinares e sobre o contexto. Esse estudo demonstra que o diálogo entre teoria e prática dentro de um ambiente de supervisão ecológico viabiliza a concretização de processos reflexivos sistemáticos nas ações empreendidas pelos licenciandos, de forma que suas crenças educacionais possam ser acessadas, suas crenças de eficácia se fortaleçam, e sua articulação em um raciocínio pedagógico possa construir saberes docentes. Outra contribuição é auxiliar na definição de um nicho de pesquisa específico sobre as crenças educacionais dos futuros professores de Ciências e Biologia, de forma que outros estudos na mesma direção possam compor uma fundamentação sólida, que implique em programas de formação cuja visão holística tenha impacto no desenvolvimento inicial dos futuros professores, repercutindo na melhoria do ensino e da aprendizagem. / This study locates in the extent of the proposals attuned to new paradigms of teachers initial formation, where professionalization is seen as a dynamic and interactive process. The context of this study was the subject Estágio (Traineeship) I of the Course of Biological Sciences in a University, whose structure was based on an Ecological Training perspective, where the supervision environment takes into account that the learning to teach involves networks of knowledge and knowing, recognizing the importance of professional meaningful contexts for trainee (teacher formation institutions, the classroom and Traineeship schools). Assuming these assumptions, the focus of this research aimed to understand how the proceedings planned in a Supervision environment from the ecological training perspective are able to confront the preservice teachers beliefs on teaching practice, and contribute to elaboration of the future science teachers professional knowledge and knowing. Aiming to answer the proposed question, we used in this research the case study as a methodological strategy for examining three subjects. This investigation was structured in blocks, (Teaching Training, Workshop on Environmental Education (EE) Training, and Research Training), whose the structural core was the systematic reflection. It was divided into phases (pre-active, active and post-active), to facilitate access to the trainees thoughts along the course. During this period, we followed the trainees movements, through their reflections written in the virtual diary form, meetings between supervisor and trainee, presentations and interviews recorded in audio, video and audio only, as well as specific tools to educational beliefs (DASTT), and for efficacy measures benchmarking (STEBI). The data analysis was performed from the perspective of interpretive interactionism, thereby assuming the relationship between researcher, subject and object as inherently subjective, in which the understanding of a particular phenomenon is only possible through mutual process socially shared of which emerge from the meanings and senses. Our results show that has been teaching learning in the individuals interaction and adaptation to their environment of acting, in which articulated through the pedagogical reasoning, their prior beliefs about their teachers, their experiences as a student, the dilemmas experienced in unexpected in practical situations, and ultimately define their teaching position at the didactic transposition in the classroom. Thus, they revealed issues related to pedagogical content knowledge (PCK), and, consequently, the teacher\'s knowledge inherent to personal and general instructional aspects, disciplinary action and the context. This study shows that the dialogue between theory and practice within an ecological supervision environment, enables the implementation of systematic reflexive processes in actions taken by trainees, in such a way that their educational beliefs can be accessed, their efficacy beliefs can be improved, and, their articulation in a consistent pedagogical reasoning can build their knowledge and teachers experiences. Another contribution is to assist in defining a specific research niche on the preservice science teachers educational beliefs, so that other researches in the same direction can compose a solid foundation, involving training programs, whose impact on a holistic view will enable the professional development of trainees, resulting in improvements in teaching and learning.

Notre travail porte sur le thème des connaissances professionnelles mobilisées par les enseignants pendant la préparation et lors de la mise en œuvre de leur enseignement. Notre étude se déroule dans le contexte de l'enseignement des sciences expérimentales. Nous y étudions les connaissances des enseignants et leurs évolutions. Notre approche théorique articule la didactique des sciences et la didactique professionnelle avec comme cadre d'analyse des connaissances des enseignants, le concept de PCK (Pedagogical Content Knowledge), les connaissances pédagogiques liées au contenu. Nous avons élaboré une méthodologie spécifique, associant le chercheur et des binômes de professeurs, afin notamment de saisir l'écart entre la préparation des enseignements et leur mise en œuvre. A partir de cet écart nous définissons des incidents critiques qui sont la base du corpus que nous analysons. Nous identifions les connaissances en jeu, et indiquons comment le concept de PCK s'articule avec celui de schème. Lorsque les enseignants traitent d'un sujet au moyen des démarches d'investigation, ils mobilisent des types de connaissances spécifiques, et mettent en place des pratiques différentes, selon qu'ils travaillent au premier ou second degré. Nous montrons qu'il y a une relation entre ces connaissances et la régulation rétroactive de l'activité qui permet à l'enseignant d'ajuster sa préparation. Nous modélisons une forme d'acquisition d'expérience.