Uma proposta para o ensino das estações do ano com base em um referencial topocêntrico

Studies carried out in several countries have confirmed the students’ difficulty in explaining the causes of the seasons of the year, and most of times their learning takes place incorrectly. The seasons of the year have been generally treated in didactic books apart from people´s routine, based on the heliocentric system, what demands abstraction to understand the phenomenon. Before this difficulty, it is necessary to think about a teaching proposal which allows the students to realize the environmental characteristics and its changes over time, as well as the seasons themselves. Thus, our goal was to work from the perspective of the observer on the terrestrial surface, therefore using the topocentric system. For that, we constructed a didactic sequence, grounded in Ausubel´s meaningful learning theory (2003) and in Moreira´s critical meaningful learning theory (2010), which was applied to students in 9th grade of elementary school and in 2th grade of high school at Escola Estadual Jerônimo Arantes, in Uberlândia, Minas Gerais, owing to their previous knowledge and alternative conceptions, which were collected via interviews. Afterwards, to evaluate the applied methodology, we made new interviews, by which we realized improvement in learning in relation to the characteristics of the seasons based on Sun´s apparent path, which we attribute to reference the change of observation and the means to obtain data on the volume of rainfall and average temperature in the city throughout the year. On the other hand, there are points that were not highlighted in learning, such as the link between winter and rainy season and the causes of the seasons, points left to be discussed in future investigations.

O Ensino de ligações químicas por meio do conceito de energia: uma proposta didática para o ensino médio

This work presents discussions on the teaching of Chemical Bonds in high school and some implications of this approach in learning chemistry by students. In general, understanding how the chemicals combine to form substances and compounds, it is a key point for understanding the properties of substances and their structure. In this sense, the chemical bonds represent an extremely important issue, and their knowledge is essential for a better understanding of the changes occurring in our world. Despite these findings, it is observed that the way in which this concept is discussed in chemistry class has contributed, paradoxically, to the emergence of several alternative designs, making the understanding of the subject by students. It is believed that one of the explanations for these observations is the exclusive use of the "octet rule" as an explanatory model for the Chemical Bonds. The use of such a model over time eventually replace chemical principles that gave rise to it, transforming knowledge into a series of uninteresting rituals and even confusing for students. Based on these findings, it is deemed necessary a reformulation in the way to approach this content in the classroom, taking into account especially the fact that the explanations of the formation of substances should be based on the energy concept, which is fundamental to understanding how atoms combine. Thus, the main question of the survey and described here of the following question: Can the development of an explanatory model for the Chemical Bonds in high school based on the concept of energy and without the need to use the "octet rule"? Based on the concepts and methodologies of modeling activity, we sought the development of a teaching model was made through Teaching Units designed to give subsidies to high school teachers to address the chemical bonds through the concept of energy. Through this work it is intended to make the process of teaching and learning of Chemical Bonds content becomes more meaningful to students, developing models that contribute to the learning of this and hence other basic fundamentals of chemistry.

Uma proposta de ensino de frações no 6º ano do ensino fundamental a partir da teoria histórico-cultural

This text presents developed in the Graduate Program in Science and Mathematics Education at the Federal University of Uberlândia, in which it was intended to answer the question: What are the pedagogical implications for the fractions concept learning for students of the 6th grade of elementary school that the teaching guide activities can provide? The objectives of this research were: a) analyze the possible pedagogical implications for the learning of the fraction's concept for students of the 6th grade of elementary school through guiding teaching activities; b) using the conceptual connections of the fraction to enable students to develop an abstract thought and c) investigate whether guiding teaching activities reflect on 'how to think' and 'how to do' of the student. Five teaching activities have been developed (MOURA, 2002) from the perspective of teaching guiding activity (TGA) and had as object of study the teaching of fractions for students in 6th year of elementary school. They have been prepared and proposed activities in which it was intended to investigate the use of history of mathematics as an aid in learning the conceptual fraction links (CARAÇA, 1951) by students. Such activities, for analysis, were organized into episodes and scenes (MOURA, 2004) and discussed how students deal with the measurement of whole quantity (all) and subunits (part); how they represent in verbal or written language. It is hoped that the research is set up as an important contribution to mathematics teaching area and may contribute to the initial and continuing training of mathematics teacher sand the formation of theoretical thinking of elementary school students.

A descoberta do elétron como tema gerador de um ensino de física mediado por experimentação remota

In this work, we have proposed and applied a methodology for teaching electromagnetism, based on an experimental activity and designed in an investigative teaching model, and containing a high degree of dialogism among teachers and students. We have used the discovery of the electron as a generator theme and a remote experiment to determine the charge-to-mass ratio of the electron as an educational resource. Our analyses indicate favorably towards the promotion of ways of appropriation of knowledge by the student, very different from those perceived in traditional expositive classes. Similarly, we find that the presence of a technological resource and an experimental activity create new posture of the teacher in the classroom, probably caused by the unpredictability of the results from the use of such resources. A challenge that we still need to solve is how to engage students in extra classroom tasks, since learning is not only effective in time for classes. We also present the weaknesses detected in our methodological proposal as well as implementations necessary in order to continue the validation process of this methodology.

O Ensino de ligações químicas por meio do conceito de energia: uma proposta didática para o ensino médio

This work presents discussions on the teaching of Chemical Bonds in high school and some implications of this approach in learning chemistry by students. In general, understanding how the chemicals combine to form substances and compounds, it is a key point for understanding the properties of substances and their structure. In this sense, the chemical bonds represent an extremely important issue, and their knowledge is essential for a better understanding of the changes occurring in our world. Despite these findings, it is observed that the way in which this concept is discussed in chemistry class has contributed, paradoxically, to the emergence of several alternative designs, making the understanding of the subject by students. It is believed that one of the explanations for these observations is the exclusive use of the "octet rule" as an explanatory model for the Chemical Bonds. The use of such a model over time eventually replace chemical principles that gave rise to it, transforming knowledge into a series of uninteresting rituals and even confusing for students. Based on these findings, it is deemed necessary a reformulation in the way to approach this content in the classroom, taking into account especially the fact that the explanations of the formation of substances should be based on the energy concept, which is fundamental to understanding how atoms combine. Thus, the main question of the survey and described here of the following question: Can the development of an explanatory model for the Chemical Bonds in high school based on the concept of energy and without the need to use the "octet rule"? Based on the concepts and methodologies of modeling activity, we sought the development of a teaching model was made through Teaching Units designed to give subsidies to high school teachers to address the chemical bonds through the concept of energy. Through this work it is intended to make the process of teaching and learning of Chemical Bonds content becomes more meaningful to students, developing models that contribute to the learning of this and hence other basic fundamentals of chemistry.

Estratégias de trabalho com blogs no ensino de geometria em turmas de 5° ano do ensino fundamental

This paper presents a survey conducted through collaborative work, which took place in a suburb school in the city of Uberlandia-MG. The research is characterized as case study and has a qualitative approach. Had the objective to look for different strategies of teaching and learning through the use of technology in pedagogical practice. Regarding the methodology in this research, we analyzed the work with the support of blogs, whose pages were used for student records and discussions directed to the geometry content. The students who were attending the fifth (5th) year of elementary school were invited to participate in this project. However, the research subjects were only those students who accepted the invitation to participate in the study through statement signed by parents. The project was developed with 30 students in the second half of 2014 and another 30 in the first half of 2015. The physical space at school, where most of the project activities were done was at the computer lab. In the process of compiling the data, at school, the following instruments were used: field notes produced by the entire project team, photographs and footage of the activities produced in the computer lab and in classroom (recorded by the research team) questionnaires, interviews, virtual space records: the blogs. The results of this research mainly focused on the analysis of the fifth year student‟s productions records in blogs. Regarding the conclusion, the research has shown that blogs, software and differentiated dynamic studies attracted the student‟s attention, leaving them mostly instigated by the unknown. Gradually, students built their own knowledge from their mistakes and successes. The entire work process enabled the computer lab to be an environment that is used not just to solving computerized and tedious drills. The blogs production work in groups, developed in students the reading and writing of both the mother language as symbols and mathematical nomenclature. The interaction between students became noticeable throughout the project, since it provided the student‟s personal growth, respect, tolerance and mutual cooperation. In this sense, we concluded that the project greatly contributed to the students' literacy process in the mother language, mathematics and computer literacy.

Sequência didática com temas motivadores no ensino de física

This study is based on the design and development of a Didactic sequence in Physics for the first year of high school in a public school, involving structured activities on Astronomy topics, Astronautics and Aeronautics. In addition, it produced a didactic-pedagogic Tutorial for teachers to develop teaching-learning processes in Physics through activities with handmade rockets. These activities have been based on teaching moments of questioning, systematization and contextualization. In this context the understanding and the deepening of concepts and scientific and physical phenomena are related to everyday knowledge, in accordance with the historical-cultural theory, with the Three Pedagogic Moments, dialogicity and Information and Communication Technologies as instruments of triggering actions and motivation, like movies and applications in teaching Astronomy, Physics and Mathematics. The research activities were conduced by adopting a qualitative approach and included reports, questionnaires, semi-structured interviews and other notes. The development of the Didactic Sequence enabled a differentiated teaching and learning process, including aspects such as conceptualization, contextualization, flexibility, interdisciplinary and theoreticalexperimental relationship.

Uma proposta para o ensino das estações do ano com base em um referencial topocêntrico

Studies carried out in several countries have confirmed the students’ difficulty in explaining the causes of the seasons of the year, and most of times their learning takes place incorrectly. The seasons of the year have been generally treated in didactic books apart from people´s routine, based on the heliocentric system, what demands abstraction to understand the phenomenon. Before this difficulty, it is necessary to think about a teaching proposal which allows the students to realize the environmental characteristics and its changes over time, as well as the seasons themselves. Thus, our goal was to work from the perspective of the observer on the terrestrial surface, therefore using the topocentric system. For that, we constructed a didactic sequence, grounded in Ausubel´s meaningful learning theory (2003) and in Moreira´s critical meaningful learning theory (2010), which was applied to students in 9th grade of elementary school and in 2th grade of high school at Escola Estadual Jerônimo Arantes, in Uberlândia, Minas Gerais, owing to their previous knowledge and alternative conceptions, which were collected via interviews. Afterwards, to evaluate the applied methodology, we made new interviews, by which we realized improvement in learning in relation to the characteristics of the seasons based on Sun´s apparent path, which we attribute to reference the change of observation and the means to obtain data on the volume of rainfall and average temperature in the city throughout the year. On the other hand, there are points that were not highlighted in learning, such as the link between winter and rainy season and the causes of the seasons, points left to be discussed in future investigations.

Transposição didática da interação do laser com sistmas biológicos no ensino médio: uma proposta de guia didático para professores

In this dissertation was elaborated an interdisciplinary didactic sequence for the development of Physical concepts involved in the interaction of laser radiation with biological matter in order to make a relation between Physics and other fields of knowledge aiming to enlarge the contextualization of scientific knowledge. The objective was to develop an educational product which theme is “Laser’s Interaction with Biological Tissues”. In this work, basic physical concepts related to laser radiation were presented, its interaction with matter and applicability in the student's daily life, with emphasis on Public Health. The inclusion of the subject in schools was effected through didactic transposition as theoretical foundation and the three pedagogical moments as teaching support. The development of the project involved discussions of scientific knowledge applied in society’s daily life. In the product's design the didactic sequence was projected and the use of varied teaching resources has been proposed, such as videos, texts, experiments, simulators and de Software “Tracker”. The construction of paradidactic material was performed considering different stages of equal importance for a teacher's reflection process. The work prioritizes the alternative conceptions of student, transforming him in a direct agent of the construction of knowledge and this aspect is based on the profile of the Student's Material. Another important point is the evaluation's proposal, this was systematized to be done class after class through building texts, essay questions, presentation of papers, among others activities. The didactic sequence guides the introduction of relevant topics of the students and society’s daily life, the ideas are not closed and in many times the teacher make changes which deem relevant to the teaching for better development of their practice.

Práticas inclusivas em ciências: um estudo de caso com um jovem com CEI

A presente investigação corresponde à conceção, implementação e avaliação de um Programa de Ciências vocacionado para um aluno com Necessidades Educativas Especiais de Caráter Permanente, com Currículo Específico Individual e Plano Individual de Transição. Assim, pretendeu-se ajudar a desenvolver a literacia científica do aluno, no espírito da escola inclusiva, sempre do ponto de vista funcional. Deste modo, implementou-se um programa denominado Práticas Inclusivas em Ciências que, de uma forma articulada com as atividades pré-profissionalizantes na área da agricultura, ajudasse o aluno a desenvolver competências na prática agrícola, promovendo, assim, a sua funcionalidade e integração na vida profissional futura. Foi, ainda, propósito desta investigação refletir acerca do papel do professor de Educação Especial no desenvolvimento do programa supracitado. A presente investigação assumiu-se como qualitativa, sob a forma de estudo de caso, realizada com um aluno com incapacidade intelectual, sem restrições sensoriais ou motoras. Os resultados foram, globalmente, muito significativos, verificando-se a aquisição de conhecimentos por parte do sujeito de estudo capazes de consubstanciar a sua funcionalidade profissional, bem como o desenvolvimento de inúmeras competências transversais. Estes resultados emergiram da aplicação de uma metodologia "hands-on", "minds-on" e "hearts-on", denominada "learning-on" nesta investigação, por parte do professor de Educação Especial, tendo em conta a necessária diferenciação pedagógica. Com base nestes resultados, emerge a pertinência de uma Educação em Ciências para todos, promotora de literacia científica de um modo verdadeiramente inclusivo.

Análise do processo de aprendizagem e alfabetização científica sobre a evolução dos veterbrados em um museu de ciências

Os museus como centros de ciências, enquanto espaços de educação não formal podem, por meio da participação ativa do público, promover a compreensão da ciência ao aguçar a curiosidade do indivíduo e estimular o prazer pela descoberta. Ação desenvolvida como intervenção acadêmica, social e cultural associada ao PIBID/UFRN/Biologia, tem como objetivo avaliar o uso de espaço de ensino não formal, na aprendizagem de conceitos, promovendo a alfabetização científica através de uma exposição em um museu de ciências e morfológicas. A visitação foi realizada no Museu de Ciências Morfológicas da UFRN, com alunos do 1º ano do ensino médio da escola Estadual Lourdes Guilherme, sendo aplicados questionários de pré e pós-visita sobre a Evolução dos Vertebrados, com intuito de analisar a contribuição do museu na aprendizagem destes conteúdos. A porcentagem de acertos no questionário pré-visita variou entre 8 e 68% em relação ao conhecimento geral dos alunos quanto à evolução dos vertebrados, enquanto no pós-visita essa variação foi de 16 a 90%. Com base nesses primeiros resultados verificamos o quanto os museus interativos de ciência se apresentam como um espaço educativo complementar à educação formal, possibilitando a ampliação e a melhoria do conhecimento científico de estudantes. Isso demonstra que o uso de espaços não formais contribui para a aprendizagem significativa, além de promover a alfabetização científica destes alunos ao gerar a compreensão da ciência e aguçar a curiosidade dos mesmos para o prazer da descoberta.

Gamificação como prática pedagógica docente no processo ensino e aprendizagem na temática da inclusão social

Acompanha: Gamificação como prática pedagógica docente no processo ensino e aprendizagem na temática da inclusão social

A dicionarização de termos em língua brasileira de sinais (Libras) para o ensino de biologia: uma atitude empreendedora

Acompanha: Glossário de termos biológicos em língua brasileira de sinais (GBLI)

Formação do pensamento científico durante o processo de alfabetização científica no ensino de teorias atômicas e elementos químicos

Acompanha: Sequências didáticas para o ensino de teorias atômicas e elementos químicos

Tempo atmosférico numa perspetiva CTS através do ensino por pesquisa

O ser Humano, desde sempre tem tentado estabelecer relações entre si, o tempo e o clima, de modo a melhorar as suas condições de vida. Atualmente existem questões problema que ameaçam a humanidade, nomeadamente as alterações climáticas e o aquecimento global com vista à promoção de um Desenvolvimento Sustentável. À educação é atribuída extrema importância no desenvolvimento de uma adequada perceção da situação do planeta. Este facto levou as Nações Unidas a proclamarem, no início deste século (dezembro de 2002), a Década da Educação para o Desenvolvimento Sustentável. Um desafio internacional lançado aos países para que recorram à educação como ferramenta essencial na promoção do Desenvolvimento Sustentável. A vida nas sociedades contemporâneas é extremamente influenciada pelos desenvolvimentos científicos e tecnológicos, dependendo dos seus respetivos progressos. Como tal, a Educação Científica assume um papel fundamental na compreensão das problemáticas que o ser Humano enfrenta, assim como na sua própria consciencialização da responsabilidade na situação planetária atual. Devendo promover o desenvolvimento de cidadanias proactivas, fundamentadas e responsáveis, no sentido da mudança, numa perspetiva crítica global que garanta a sustentabilidade do planeta. Estes factos são alvo de reflexão por parte de diversas instâncias da sociedade tais como a UNESCO, comunidades nacionais e internacionais de investigação em Educação Científica, e o poder político que se espelham em propostas de reforma e de revisão curricular em diversos países. Neste contexto, a Escola, como instituição formal de Educação, toma o papel primordial de promover o Desenvolvimento Sustentável através da aquisição de conhecimentos, atitudes, valores e competências que permitam desenvolver nos alunos uma consciencialização ecológica e uma literacia científica. Com este propósito em mente surge a questão investigativa deste estudo “Como Abordar o Tempo Atmosférico numa Perspetiva CTS Através do Ensino Por Pesquisa?”. Assim, usando o laboratório mais acessível e gratuito, a Atmosfera, e recursos facilmente acessíveis para desenvolver atividades simples é apresentada uma proposta de abordagem em sala de aula para a temática “Tempo Atmosférico” em particular a “Previsão e Descrição do Tempo Atmosférico”. A Atmosfera é um fascinante laboratório de ensino, porque nela se podem estudar alguns processos físicos lecionados ao longo dos mais variados níveis de ensino nas disciplinas de Física, Química e Geografia. Na Atmosfera, podem realizar-se diversos estudos simples, que de uma forma fácil respondem a inquietantes questões relacionadas com a Previsão e Descrição do Tempo Atmosférico. Neste estudo foi desenvolvida e usada uma metodologia para construir e interpretar mapas de tempo permitindo a alunos do 3º Ciclo do Ensino Básico fazer a Previsão e Descrição do Tempo Atmosférico. Após a aplicação da estratégia para o desenvolvimento de capacidades, de criatividade, envolvimento, cidadania e de pensamento crítico, os alunos responderam a um questionário. Através do tratamento dos dados obtidos pode-se considerar que em média 97% dos alunos consideram importante ou muito importante o estudo desta temática e que tem influência no seu dia-a-dia. Verificou-se que em média, se passou de 26% de respostas cientificamente corretas ou parcialmente corretas para 83% de respostas cientificamente corretas ou parcialmente corretas, o que demostra que a estratégia proposta atingiu os seus propósitos que passavam por dinamizar e fomentar uma cultura meteorológica nas escolas e para as escolas. Salienta-se a importância da possibilidade do trabalho em rede e das suas potencialidades na motivação dos alunos dada a oportunidade de fazer diagnóstico do tempo atmosférico local e inter-regiões. Os alunos consultaram e interpretaram mapas de tempo atmosférico, usaram a Internet e compreendam a relação e a influência entre diferentes parâmetros meteorológicos. Os resultados obtidos neste estudo permitem afirmar que os alunos desenvolveram competências numa área que é uma preocupação de cada um, o diagnóstico do tempo atmosférico. Cresceu neles uma cultura meteorológica e as aprendizagens nesta temática podem transbordar para colegas, amigos, pais e toda a comunidade escolar. Assim pode considerar-se que a estratégia implementada foi promotora de mudança, de aquisição de conhecimentos e do desenvolvimento de competências numa temática tão aliciante que envolve o Desenvolvimento Sustentável. Considera-se ainda que a estratégia usada neste estudo é motivadora, aliada à dinâmica CTS e ao Ensino Por Pesquisa, com vista a ser utilizada em contexto de sala de aula. Este estudo é uma forte contribuição para o Ensino das Ciências em especial no ensino da temática Tempo Atmosférico e é uma ferramenta importante que pode e deve ser utilizada em contexto escolar pois está escrito de modo a ser consultado por profissionais de ensino, nomeadamente pelos professores de Física, Química e de Geografia de modo a promoverem o desenvolvimento de competências de literacia científica e de cidadania e contribuir para a formação de futuros cidadãos ativos e conscientes defensores da Sustentabilidade da Terra.