Este trabalho teve como objetivo a elaboração de uma sequência didática em nível de Ensino Médio sobre Leis de Newton, para ser utilizada com o método de ensino Peer Instruction. (Instrução pelos Colegas). Esta sequência didática foi aplicada em quatro turmas (totalizando 118 alunos) da primeira série do Ensino Médio Técnico de uma escola pública de Novo Hamburgo – RS. A concepção de todo o material elaborado foi alicerçada na Teoria da Aprendizagem Significativa de David Paul Ausubel. As aulas foram estruturadas em sete encontros de uma hora e quarenta minutos cada um, sendo que em seis deles foi empregado o método Peer Instruction para a aprendizagem conceitual do conteúdo, intercalando-se questões envolvendo cálculos e o último encontro foi destinado à avaliação de todas as etapas do processo. A análise dos dados revela que as turmas obtiveram ganhos significativos de aprendizagem. Observou-se que as discussões entre os colegas foram proveitosas, propiciando a participação dos alunos como protagonistas do seu próprio processo de ensino-aprendizagem e levaram a um aumento do percentual de acertos das questões conceituais propostas. O retorno dado pelos alunos demonstra que a dinâmica da aula os motiva a trabalhar e os mantêm envolvidos com o trabalho por mais tempo. Conclui-se que esta sistemática pode se estender a outros conteúdos da Física, aumentando a interação entre os alunos e a reflexão crítica sobre os fenômenos que estão sendo abordados. Para a aplicação desta proposta foram elaboradas: tarefas prévias, os momentos da sequência didática e um banco de questões conceituais. / This work aimed to develop a high school level didactical sequence about Newton’s Laws of motion, suitable for use with Peer Instruction teaching method. This didactical sequence was implemented in four first grade classes (totaling 118 students) of a public technical High School in Novo Hamburgo (Brazil). The conception of all material was based on David Paul Ausubel’s Meaningful Learning Theory. The classes were organized in seven meetings of one hour and forty minutes each. The Peer Instruction method was used for conceptual learning during six of these meetings, interspersing questions involving calculations. The last meeting was dedicated to evaluate all the stages of the process. The performance analysis of the data reveals that the students obtained significant learning gains. The discussions among the students were useful, allowing the participation of students as protagonists of their own teaching-learning process and led to an increase in the percentage of correct answers to the proposed conceptual questions. The feedback given by the students demonstrates that the dynamics of the class motivates them to work and keeps them involved with the work. We can conclude that this systematics can be extended to other contents of Physics, stimulating the interaction between the students and the reflection on the phenomena that are being approached. For the application of this proposal were elaborated: previous tasks, a didactical sequence in moments and a bank of conceptual questions.

Este trabalho teve como objetivo a elaboração de uma sequência didática em nível de Ensino Médio sobre Leis de Newton, para ser utilizada com o método de ensino Peer Instruction. (Instrução pelos Colegas). Esta sequência didática foi aplicada em quatro turmas (totalizando 118 alunos) da primeira série do Ensino Médio Técnico de uma escola pública de Novo Hamburgo – RS. A concepção de todo o material elaborado foi alicerçada na Teoria da Aprendizagem Significativa de David Paul Ausubel. As aulas foram estruturadas em sete encontros de uma hora e quarenta minutos cada um, sendo que em seis deles foi empregado o método Peer Instruction para a aprendizagem conceitual do conteúdo, intercalando-se questões envolvendo cálculos e o último encontro foi destinado à avaliação de todas as etapas do processo. A análise dos dados revela que as turmas obtiveram ganhos significativos de aprendizagem. Observou-se que as discussões entre os colegas foram proveitosas, propiciando a participação dos alunos como protagonistas do seu próprio processo de ensino-aprendizagem e levaram a um aumento do percentual de acertos das questões conceituais propostas. O retorno dado pelos alunos demonstra que a dinâmica da aula os motiva a trabalhar e os mantêm envolvidos com o trabalho por mais tempo. Conclui-se que esta sistemática pode se estender a outros conteúdos da Física, aumentando a interação entre os alunos e a reflexão crítica sobre os fenômenos que estão sendo abordados. Para a aplicação desta proposta foram elaboradas: tarefas prévias, os momentos da sequência didática e um banco de questões conceituais. / This work aimed to develop a high school level didactical sequence about Newton’s Laws of motion, suitable for use with Peer Instruction teaching method. This didactical sequence was implemented in four first grade classes (totaling 118 students) of a public technical High School in Novo Hamburgo (Brazil). The conception of all material was based on David Paul Ausubel’s Meaningful Learning Theory. The classes were organized in seven meetings of one hour and forty minutes each. The Peer Instruction method was used for conceptual learning during six of these meetings, interspersing questions involving calculations. The last meeting was dedicated to evaluate all the stages of the process. The performance analysis of the data reveals that the students obtained significant learning gains. The discussions among the students were useful, allowing the participation of students as protagonists of their own teaching-learning process and led to an increase in the percentage of correct answers to the proposed conceptual questions. The feedback given by the students demonstrates that the dynamics of the class motivates them to work and keeps them involved with the work. We can conclude that this systematics can be extended to other contents of Physics, stimulating the interaction between the students and the reflection on the phenomena that are being approached. For the application of this proposal were elaborated: previous tasks, a didactical sequence in moments and a bank of conceptual questions.

Este trabalho teve como objetivo a elaboração de uma sequência didática em nível de Ensino Médio sobre Leis de Newton, para ser utilizada com o método de ensino Peer Instruction. (Instrução pelos Colegas). Esta sequência didática foi aplicada em quatro turmas (totalizando 118 alunos) da primeira série do Ensino Médio Técnico de uma escola pública de Novo Hamburgo – RS. A concepção de todo o material elaborado foi alicerçada na Teoria da Aprendizagem Significativa de David Paul Ausubel. As aulas foram estruturadas em sete encontros de uma hora e quarenta minutos cada um, sendo que em seis deles foi empregado o método Peer Instruction para a aprendizagem conceitual do conteúdo, intercalando-se questões envolvendo cálculos e o último encontro foi destinado à avaliação de todas as etapas do processo. A análise dos dados revela que as turmas obtiveram ganhos significativos de aprendizagem. Observou-se que as discussões entre os colegas foram proveitosas, propiciando a participação dos alunos como protagonistas do seu próprio processo de ensino-aprendizagem e levaram a um aumento do percentual de acertos das questões conceituais propostas. O retorno dado pelos alunos demonstra que a dinâmica da aula os motiva a trabalhar e os mantêm envolvidos com o trabalho por mais tempo. Conclui-se que esta sistemática pode se estender a outros conteúdos da Física, aumentando a interação entre os alunos e a reflexão crítica sobre os fenômenos que estão sendo abordados. Para a aplicação desta proposta foram elaboradas: tarefas prévias, os momentos da sequência didática e um banco de questões conceituais. / This work aimed to develop a high school level didactical sequence about Newton’s Laws of motion, suitable for use with Peer Instruction teaching method. This didactical sequence was implemented in four first grade classes (totaling 118 students) of a public technical High School in Novo Hamburgo (Brazil). The conception of all material was based on David Paul Ausubel’s Meaningful Learning Theory. The classes were organized in seven meetings of one hour and forty minutes each. The Peer Instruction method was used for conceptual learning during six of these meetings, interspersing questions involving calculations. The last meeting was dedicated to evaluate all the stages of the process. The performance analysis of the data reveals that the students obtained significant learning gains. The discussions among the students were useful, allowing the participation of students as protagonists of their own teaching-learning process and led to an increase in the percentage of correct answers to the proposed conceptual questions. The feedback given by the students demonstrates that the dynamics of the class motivates them to work and keeps them involved with the work. We can conclude that this systematics can be extended to other contents of Physics, stimulating the interaction between the students and the reflection on the phenomena that are being approached. For the application of this proposal were elaborated: previous tasks, a didactical sequence in moments and a bank of conceptual questions.

School science education prepares learners to study science at a higher level, prepares them to follow a career in science and to become scientific literate citizens. It is the responsibility of the educator to ensure the learners’ conceptual framework is developed to the extent that secures success at higher level studies. The purpose of this study was to test the effectiveness of conceptual change teaching strategies on the conceptual development of grade 11 learners on Newton’s second law of motion. The two strategies employed were the cognitive conflict strategy and the development of ideas strategy. A sequential explanatory mixed-method research design was used during this study. The qualitative data were used to elucidate the quantitative findings. The quantitative research consisted of a quasi-experimental design consisting of a single-group pre-test–post-test method. During the qualitative part of the research a phenomenological research approach was utilised to gain a better understanding of participants’ learning experiences during the intervention. The quantitative research made use of an adapted version of the Force Concept Inventory (FCI). The data collected from the pre-test were used to inform the intervention. The intervention was videotaped and the video analysis or qualitative data analysis was done. After the intervention the post-test was written by the learners. Hake’s average normalised learning gain <g> from pre- to post-scores was analysed to establish the effectiveness of the intervention. The two sets of results (quantitative and qualitative) were integrated. Information from the qualitative data analysis was used to support and explain the quantitative data. The quantitative results indicate that there was an improvement in the students’ force conception from their initial alternative conceptions, such as that of an internal force. Especially the learners’ understanding of contact forces and Newton’s first law of motion yielded significant improvement. The qualitative data revealed that the understanding of Newton’s second law of motion by the learners who partook in this study did improve, since the learners immediately recognised the mistakes made when confronted with the anchor concept. The cognitive conflict teaching strategy was effective in establishing the anchor concept of force which proved to be useful as bridging concept in the development of ideas teaching strategy. The data from both datasets revealed that the cognitive conflict teaching strategy for the initial part of the intervention was effective. It was evident that for development of the idea teaching strategy the two data sets revealed mixed results. Recommendations were made for future research and implementation of conceptual development teaching strategies. / MEd (Natural Sciences Education), North-West University, Potchefstroom Campus, 2014

School science education prepares learners to study science at a higher level, prepares them to follow a career in science and to become scientific literate citizens. It is the responsibility of the educator to ensure the learners’ conceptual framework is developed to the extent that secures success at higher level studies. The purpose of this study was to test the effectiveness of conceptual change teaching strategies on the conceptual development of grade 11 learners on Newton’s second law of motion. The two strategies employed were the cognitive conflict strategy and the development of ideas strategy. A sequential explanatory mixed-method research design was used during this study. The qualitative data were used to elucidate the quantitative findings. The quantitative research consisted of a quasi-experimental design consisting of a single-group pre-test–post-test method. During the qualitative part of the research a phenomenological research approach was utilised to gain a better understanding of participants’ learning experiences during the intervention. The quantitative research made use of an adapted version of the Force Concept Inventory (FCI). The data collected from the pre-test were used to inform the intervention. The intervention was videotaped and the video analysis or qualitative data analysis was done. After the intervention the post-test was written by the learners. Hake’s average normalised learning gain <g> from pre- to post-scores was analysed to establish the effectiveness of the intervention. The two sets of results (quantitative and qualitative) were integrated. Information from the qualitative data analysis was used to support and explain the quantitative data. The quantitative results indicate that there was an improvement in the students’ force conception from their initial alternative conceptions, such as that of an internal force. Especially the learners’ understanding of contact forces and Newton’s first law of motion yielded significant improvement. The qualitative data revealed that the understanding of Newton’s second law of motion by the learners who partook in this study did improve, since the learners immediately recognised the mistakes made when confronted with the anchor concept. The cognitive conflict teaching strategy was effective in establishing the anchor concept of force which proved to be useful as bridging concept in the development of ideas teaching strategy. The data from both datasets revealed that the cognitive conflict teaching strategy for the initial part of the intervention was effective. It was evident that for development of the idea teaching strategy the two data sets revealed mixed results. Recommendations were made for future research and implementation of conceptual development teaching strategies. / MEd (Natural Sciences Education), North-West University, Potchefstroom Campus, 2014