Citologia: uma proposta formativa na EaD - UFRN a partir de concepções alternativas

Learning difficulties can have a direct influence on the teaching-learning process of students by reducing their school performance. One factor that may contribute to this negative influence on learning refers to the presence of alternative conceptions, which may have different origins in the educational process. It is of paramount importance, for teachers, for example, to identify the concepts and the difficulties of their students in order for that knowledge can be able to contribute significantly to improve the teaching and learning process. From the following considerations, the present study (still in progress) aims to investigate aspects related to the concepts and difficulties of graduating students in relation to the contents of Biology. The participants of the research were undergraduate students in Biological Sciences from UFRN, studying by Distance Learning (Educação a Distância). To develop the survey, questionnaires were developed to identify the contents in Biology that these students have more difficulties as well as an interview to raise misconceptions regarding the content of cytology. Another tool developed was a textbook evaluation form, which was applied in conjunction with a questionnaire in workshops (short courses) in order to identify possible errors and mistakes that could jeopardize the process of teaching and learning, such as the importance that these learners assign to textbooks in the educational process. From the data collected, a booklet on the content of cytology was developed as a product. It is expected that it can be applied in classrooms in order to improve the teaching and learning in references to Biology, to minimize, for example, alternative conceptions than can occur related to the theme

Física e pintura: dimensões de uma relação e suas potencialidades no ensino de física

Neste artigo são discutidas possibilidades de uso das relações entre a física e a pintura no Ensino Médio. A partir das propostas de ensino oficiais, que já incorporam a necessidade de rever a abordagem usual dos conceitos da física, e de propostas de outros autores que afirmam a necessidade de dar outros sentidos aos conceitos físicos, mostramos como o desenvolvimento da física e da pintura indicam aproximações, e de como estas podem contribuir para a compreensão de conceitos dessa e de outras disciplinas, bem como para a compreensão da realidade em seu sentido mais amplo.

O ensino de língua inglesa em um instituto federal : uma análise das recomendações documentais e da perspetiva dos professores

This work aims to understand the teaching of English at the Federal Institute of considering the recommendations of official and technical documents for the integrated secondary school and the perspective of the English teachers settled in one of the campuses of the Institute. It is also an objective of this research to infer as to what extent the perspective of teachers is articulated to the documental recommendations. For this purpose, several official and technical documents (LÜDKE; ANDRÉ, 1986), such as the PCNEMs (BRAZIL, 2000), the OCNEMs (BRAZIL, 2006) and the Political-Pedagogical Project of the Institute (IFRN, in press) were gathered, and a questionnaire was submitted to six teachers of English from one of the campuses of the institution. The theoretical references of the research include, among others, Bakhtin (1997; 1999), Widdowson (1991), Almeida Filho (2011; 2004), Celani (1988; 2009), Hutchinson and Waters (1987) and Dudley-Evans and St. John (1998). The results show that the teaching of English according to the documents predicts the instrumental use of the foreign language, but suggests the development of competences and skills as contextualized social practices, aimed at the education of the student as a professional-citizen. The perspective of teachers, in turn, points to a concern that the teaching of English serves as a tool for improving student life through the instrumental use of language as a means of accessing information and professional training. This finding reveals that the articulation between the documental recommendations and perspective of teachers does not go beyond what refers to the instrumental language teaching, since teachers do not show, when reporting their practices, the teaching of language as social practice, as mentioned in the legal texts

Investigação sobre a identidade profissional em alunos de Licenciatura em Ciências Bioló gicas

A presente pesquisa apresenta as perspectivas de atuação profissional de alunos do curso de Licenciatura em Ciências Biológicas de uma universidade pública do estado de São Paulo. Por meio de entrevistas semiestruturadas, levantamos as expectativas desses alunos em relação ao curso que frequentam e qual identidade construíram como parte do imaginário que compõe o ethos. Verificamos que o curso de licenciatura pesquisado pouco contribui para a construção de uma identificação dos alunos com a profissão de professor de Biologia e/ou Ciências e, apesar de constituir-se em um curso de formação para tal, acentua a construção da imagem do cientista- pesquisador nas áreas básicas da Biologia.

Raciocínio moral e uso abusivo de bebidas alcoólicas por adolescentes

O uso abusivo de álcool por adolescentes é uma questão que preocupa os envolvidos com a educação, uma vez que as consequências desse fato podem gerar sérios prejuízos ao processo ensino-aprendizagem e ao adolescente que abusa. Com o objetivo de contribuir para o debate na busca de uma intervenção efetiva que possa ser utilizada, sobretudo nas escolas, procuramos detectar a possível relação entre uso abusivo de álcool e raciocínio moral. Para tanto, participaram alunos do ensino médio de uma escola pública, selecionados por meio da aplicação do AUDIT (The Alcohol Use Disorder Identification Test), que posteriormente foram entrevistados, conforme a Moral Judgement Interview (MJI) proposta por Kohlberg. Os resultados obtidos revelam níveis e estágios morais aquém dos esperados. Concluímos que a prevenção pode ser pensada por meio da Educação Moral como uma proposta de intervenção efetiva contra o uso abusivo de álcool e outras drogas.

Efeito do exercício físico matinal realizado sob luz solar no ciclo vigília-sono de adolescentes

The sleep onset and offset delay at adolescence in relation to childhood. Besides biological causes, some external factors as academic obligations and socialization contributes, increasing the burden of school and socialization. However, morning school schedules reduce sleep duration. Besides light strong effect, studies in humans have indicated that exercise influence circadian synchronization. To evaluate the effect of the morning exercise under sunlight on sleep-wake cycle (SWC) of adolescents, 160 high school students (11th year) were exposed to the following conditions: lesson in usual classroom (Group C), lesson in swimming pool exposed to sunlight (Group E), half of them carrying through physical activity (EE) and the other resting (EL). Each experimental group met two stages: assessment of SWC 1 week before and 1 week during the intervention, which was held in Monday and Wednesday between 7:45 and 8:30 am. In the baseline, there were applied the questionnaires "Health and Sleep" and cronotype evaluation (H & O). In addition, students were evaluated before and during the intervention by "Sleep Diary", "Karolinska Sleepiness Scale" (KSS), Psychomotor Vigilance Test (PVT) and actimetry. During the intervention, there was a delay in wake-up time on the weekend and a trend to greater sleep duration on week for the three groups. At the weekend, only the groups EE and EL increased sleep duration. There was no difference in bedtime, irregularity of sleep schedules and nap variables. The sleepiness showed a circadian pattern characterized by higher alertness levels at 11:30 am and sleepiness levels at bedtime and wake-up time on week. On weekends there were higher levels of alertness in these times. In the days of intervention, there was an increase of sleepiness at 11:30 am for groups EL and EE, which may have been caused by a relaxing effect of contact with the water of the pool. In addition, the group EE showed higher alert levels at 14:30 pm on Monday and at 8:30 am in the Wednesday, possibly caused by exercise arousal effect. The reaction time assessed through the TPV did not vary between the stages. The sleep quality improved in the three groups in the second stage, making impossible the evaluation of intervention effect. However, the sleep quality increased on Monday and Tuesday only on the group EE. From the results, it is suggested that the intervention promoted effects on the sleepiness at some day hours. In other SWC variables there were no effects, possibly due to a large SWC irregularity on weekends. Thus, the evaluation of higher weekly frequency EF is necessary, since only two days were insufficient to promote greater effect on adolescents SWC

A influência do discurso do professor na motivação e na interação social em sala de aula

Estudos têm mostrado a importância das interações sociais desencadeadas em sala de aula como fundamentais para a aprendizagem dos alunos. Contudo, o professor deve ser capaz de motivar os estudantes para se envolverem mais ativamente com as atividades de ensino propostas. Este artigo apresenta os resultados de uma investigação sobre as interações sociais desenvolvidas no contexto de uma sala de aula do Ensino Médio, que explicou os princípios da conservação da energia mecânica com uma aula experimental de demonstração. O principal objetivo era entender como o discurso do professor pode contribuir para o bom nível de motivação do aluno durante uma aula. As entrevistas com professor e alunos e todo o processo de interação durante as atividades foram gravados, transcritos e analisados . Os resultados ressaltam a importância da abordagem discursiva dos professores para manter o processo de motivação entre os alunos.

Estilos de aprendizagem sob a ótica da Psicologia Evolucionista

Among a variety of learning conceptions, David Kolb´s Experiential Learning Theory proposes four different learning styles: diverging, characterized by orientation towards people and multi-perspective vision; assimilating, concerned with ideas and abstract concepts as well as theory formulation; converging, expert in dealing with technical tasks and problem solving; and accommodating, risk taker and good at getting things done. Interesting correlations have been pointed out between Kolb s learning styles, professional careers and genders. With respect to behaviors, specific cognitive skills and interests, sex differences are widely known, and explained by Evolutionary Psychology as the result of distinct selective pressures acting on each gender. The aim of this research was to assess adolescents learning styles and their relation with interests on school and career choices, analyzing possible gender differences. We distributed questionnaires to 221 senior high school students to research their preferences for school disciplines, professional activities and career choices. The Learning Style Inventory specified the learning style of each individual. Our results showed a high frequency of reflective styles, with predominance of females as diverging and males as assimilating. Concerning school and professional interests, there were correlations between styles oriented towards the abstract and technical interests. Moreover, females preferred disciplines related to languages and interpersonal activities while males preferred disciplines related to science and technical activities. There were more males in exact science and engineering careers, and more females in social science and applied social science. Correlations found between learning styles, school and professional interests corroborate Kolb´s propositions, and the findings about gender differences are supported by Evolutionary Psychology theories

Pistas orgânicas: uma atividade lúdica para o ensino das funções orgânicas

Educational games can work as a complementary tool in teaching and learning chemistry, playing an important role in the development of the students cognitive structures, familiarizing them with certain conceptual content, which may arouse interest in the study of such content. In this work, we made an analysis of organic chemistry textbooks recommended by Programa Nacional do Livro Didático 2012, for high school students in order to verify the existence of methodological proposals using educational games. From this analysis, we proposed an educational game to be developed for students on 3º year of high medium and undergraduate chemistry, that are in 1º semester of the course, which is constituted of a tray and 48 letters, which work various concepts concerning organic functions, such as: structural characteristics, physical properties, chemical and properties diverse of the compounds used for the confection of the letters. The game was applied to a class degree in chemistry, period 2012.1 to a Federal Education of Rio Grande do Norte and a group of students of the 3rd year of the state schools of Rio Grande do Norte, in the period the months of April and May 2012. The analysis of the performance of the game proposed was made using visual observations, photographic records and testimonials of students who participated in the games. The instrument used for the data collection was the student questionnaire, which was similar for both groups, differing only in the amount of questions, because one of them had one more question. During application of the game it was observed that it constitutes a dynamic strategy in the teaching and learning of chemistry concepts, given that students actively participated in the classes as well, demonstrated more motivation in the construction of concepts, furthermore, it was possible to observe evidence of other possibilities of the game. This could be verified through visual observations and testimonials at the end of each game, by reading the answers to the questionnaires

A contextualização e a interdisplinaridade no ensino de Química: uma analise de livros didáticos ACIDO-BASE e das propostas pedagógicas realizadas pelos docentes diante da temática

Nowadays, chemistry contents taught in high school continue to be presented in a fragmented and decontextualized manner by the teachers and the textbooks. Even though it is known that contextualization and interdisciplinary exchange play an important role in the process of Chemistry teaching/learning. Therefore, the present study aims at enlightening the importance of these methodological foundations in the learning of chemistry. The data acquisition about the subject Contextualization and Interdisciplinary Exchange involved in Chemistry Teaching was developed through bibliographical researches on chemistry textbooks, which focused on the analysis of the topics acid and base , since it is a theme studied throughout all three years of high school. The present study also developed questionnaires which were applied to analyze to what extent chemistry teachers are working in a contextualized and interdisciplinary manner throughout the process of Chemistry teaching/learning. The results obtained in the researches show that a contextualized and interdisciplinary teaching contributes to a more meaningful acquisition of chemistry knowledge, in a dynamic and interactive way, but there are still many roadblocks towards the achievement of this kind of Chemistry teaching/learning process

Notas sobre o problema da explicação e da experiência no ensino da Filosofia

Apesar do esforço dos defensores do ensino da Filosofia para que essa disciplina volte a fazer parte do Ensino Médio, observamos, atualmente, seu abandono nos cursos universitários. Notamos que hoje, na sociedade normalizada e no espaço educacional, não é mais valorizado o desenvolvimento integral do pensamento, mas a transmissão de uma série de conteúdos que, supostamente, dão condições para a integração do estudante no quadro do progresso tecnológico e proporcionam sua entrada no mercado de trabalho. Circunscrevendo-se nesse contexto, neste texto pretende-se investigar o espaço em que o ensino da Filosofia se desenvolve na atualidade. Delineando os contornos de um problema que emerge nos espaços institucionais universitários onde o ensino da Filosofia ainda persiste, procurou-se evidenciar em que bases a Filosofia é ensinada. Procurou-se, ainda, compreender quais consequências os modos de compreender o ensino da Filosofia trazem para o aprendizado do filosofar. Uma consideração a que se pode chegar, a partir deste estudo, é a de que o ensino da Filosofia além de não privilegiar, e muitas vezes negar, a experiência de pensamento que o aluno pode fazer e ter com o texto filosófico, contribui para o empobrecimento dessa mesma experiência do e com o filosofar.

Sistemática integrativa de Cichlasoma orientale Kullander 1983 e Crenicichla menezesi Ploeg 1991 (Teleostei: Cichlidae) das bacias hidrográficas do Nordeste do Brasil

Understanding the historical and ecological relationships which are influent in current biological diversity is one of the most challenging tasks of evolutionary biology. Recent systematics emphasizes the need of integrative approaches to delimit different lineages and species. The northeastern Brazil, mostly placed in Caatinga biome, is characterized by a semi-arid weather, low precipitation and seasonal behavior of rivers. This region is regarded lacking as ichthyological knowledge and one of the most threatened by anthropic activities. Further, will be affected by a massive water diverpsion work that will transfer waters from São Francisco basin, to other major four basins: Jaguaribe, Apodi-Mossoró, Piranhas-Açu and Paraiba do Norte. Loss of diversity and richness, hibridizitation, community interactions changes, population homogenization, changes in water quality and flow regime, are examples of environmental impacts already related with similar works. The present study aims to investigate morphological and molecular variation of Cichlasoma orientale Kullander 1983 and Crenicichla menezesi Ploeg 1991, two cichlid species present in northeastern Brazil basins. Further, the study aims to evaluate the influence of geomorphological and climatic processes in this variation, and point some possible impacts of the artificial connectivity which can be brought by São Francisco interbasin water transfer to their population dynamics. Geometric morphometrics and phylogeographical analysis were used to investigate the populations from three different hydrological regions. Our results showed a significant morphological variation of populations from basins that are involved in the São Franscisco s diversion project, not related to an ancient separation between populations, emphasizing morphological variation which could represent a set of plastic responses to the variable hydrological regime in Northeastern Brazil. The role of plastical responses in naturally variable habitats as well as the potential disturbs that could be brought by the interbasin water transfer works are discussed here. Further, our molecular data allowed us to make inferences about species distribution and their taxonomy, and identification of a potential new species of Crenicichla for São Francisco river basin. Our data also allowed to identify some shared haplotypes for both species, which could be related to lineage sorting scenarios or recent gene flow between populations. However a strong structure in most of the pairwise comparisons between populations for both species was revealed. Climatic events such as Atlantic forest regression during the Pleistocene, sea level fluctuations and dispersion by paleorivers in the mouth of Apodi-Mossoró river, and neotectonic events regulating the connection between drainages are likely to have had a contribution for the actual lineages distribution in northeastern Brazil. Further, analysis of molecular variation (AMOVA and SAMOVA) showed that the actual basin s isolation is an important factor to molecular variation, in spite of the signal of recent contact between some basins. Different genetic diversity patterns between species could be related to multiple historic events of colonization, basins landscapes or biological differences. The present study represents the first effort of integrative systematics involving fish species of northeastern Brazil, and showed important morphological and molecular patterns which could be irrecoverably affected by the artificial connection that might be caused by the São Francisco interbasin water transfer

Uma abordagem dialógica para a utilização de atividades experimentais em sala de aula

The belief of using experimental activities in the teaching of Physics as a strategy to produce a more efficient teaching-learning process is great among teachers and the school community. However, there are many difficulties for their implementation and when it happens they do not contribute for an improvement in class efficiency due to the method used. In this work, we developed a proposal for using these activities in Physics classes in high school, from a critical-reflexive approach in which the constant dialogue between the participants in the teaching-learning process is fundamental. The work was developed in two ways. The first, where the author/writer created an educational material and applied it in classroom and a second one, where he presented the idea to other teachers and undergraduate students from the Physics course at UFRN and IFRN (former CEFET-RN) through an extended workshop entitled "The role of experimental activities in the Physics teaching". This workshop had the duration of 60 hours and was implemented in 4 steps: i) sensitization and formation, ii) material development, iii) material implementation and iv) evaluation by teachers and students from the classes where the material was applied. The goal of this workshop was to present the approach, evaluate how the participants received the idea and how they would apply it in real situations. The results of the application in classroom allowed us to reach some conclusions. This approach was well received by the students as well as by the workshop participants. Despite some difficulties in relation to the handling of the implementation results by the workshop participants, they indicated changes in these professionals teaching practice and the introduction of experimental activities has been an important subsidy to assist them in Physics class in high school

O uso da representação cartográfica e a cartofobia: analisando a prática e a formação inicial docente na Geografia do ensino público em Teresina-PI

This word has objective to analyzer the relevance of the use of the cartographic representations, in the constructions of the geographical knowledge, during the process of the teaching-learning in the classes of the Geographic of the High School, drawing liam with the formation docent of the regulars courses of teacher training in the regular courses of Degree in Geography. Delimit is the area of empiric search to College State Zacarias de Goes (CEZG) Liceu Piauiense, and to regulars courses of Degree in Geography of the University Federal of the Piauí (UFPI) and University State of the Piauí (UESPI), educational institutions of the public network, located in the city of the Teresina Piauí. Expression of the problematic searched is gaps to been demystified on the vision cartofógica, when has reference to use of the cartographic representations, in the practice, and the initial formation docent in the Geography. To analyze the dynamics of the use of the cartographic resources, tried demystify the Cartography while of the space during the teaching of discipline Geography. So, the lyam with the initial formation in the begree search understand the impasses of construction to academic know and the possibilities of the didactic transposition to the restructure of the know scholar to teacher who works in the Geography, trying to make the teaching of this discipline more interesting and value

Educação ambiental e educação em valores em livros didáticos de ciências naturais

Os valores têm sido considerados importante conteúdo de ensino, sobretudo ao tratarmos de certas temáticas, como a ambiental. Procurando analisar o tratamento dado à dimensão valorativa da temática ambiental em três coleções de Ciências Naturais voltadas às séries finais do Ensino Fundamental verificamos a predominância da visão antropocêntrica, sendo a natureza valorizada em função de sua utilidade para o ser humano. O predomínio da valorização do conhecimento científico em detrimento de outras formas de conhecimento, da ação humana individual em detrimento da coletiva e a simples apresentação de leis ambientais foram outros aspectos problemáticos encontrados. Uma das coleções, entretanto, além de valorizar o trabalho coletivo dos alunos, também se destacou pela maior ênfase dada à dimensão estética, implicando uma visão de mundo menos utilitarista e um tratamento mais adequado do conteúdo valorativo da temática ambiental.