905 resultados para Science teaching


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Purpose The purpose of this chapter is to identify the pedagogical approaches that foster critical reflection using video among the preservice teachers during tutorials. Methodology/approach The research is situated in a school-based teaching programme in which pairs of pre-service teachers taught small groups of primary aged children over a period of seven weeks. Volunteer pre-service teachers videotaped their lessons and selected video excerpts to share with their peers in the tutorial. The educator guided the preservice teachers’ reflection using the video. A case study drawing on interviews with pre-service teachers and audio recordings of tutorials, charted the development of pedagogical decisions made by the educators to promote reflection.Findings The pre-service teachers had difficulties undertaking deep reflection of their own and peers’ teaching practice. The response by educators was to promote collaboration among pre-service teachers by discussing specific aspects of the teaching in small groups and to use a jigsaw approach. This enabled a deeper analysis of particular elements of the lesson that were then integrated to produce a more holistic understanding of the teaching. The video data is most suitable for reflection and provides valuable evidence for pre-service teachers to develop their practice. Practical implications For pre-service teachers to develop effective skills to analyse their own practice they need to experience teaching in a safe but challenging environment, over a sustained period; have opportunities to develop a shared understanding of what constitutes quality teaching; have opportunities to critically analyse their teaching in discussion with peers and educators and be able to be guided by a framework of reflective strategies.

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This study was conducted to determine if the use of the technology known as Classroom Performance System (CPS), specifically referred to as “Clickers”, improves the learning gains of students enrolled in a biology course for science majors. CPS is one of a group of developing technologies adapted for providing feedback in the classroom using a learner-centered approach. It supports and facilitates discussion among students and between them and teachers, and provides for participation by passive students. Advocates, influenced by constructivist theories, claim increased academic achievement. In science teaching, the results have been mixed, but there is some evidence of improvements in conceptual understanding. The study employed a pretest-posttest, non-equivalent groups experimental design. The sample consisted of 226 participants in six sections of a college biology course at a large community college in South Florida with two instructors trained in the use of clickers. Each instructor randomly selected their sections into CPS (treatment) and non-CPS (control) groups. All participants filled out a survey that included demographic data at the beginning of the semester. The treatment group used clicker questions throughout, with discussions as necessary, whereas the control groups answered the same questions as quizzes, similarly engaging in discussion where necessary. The learning gains were assessed on a pre/post-test basis. The average learning gains, defined as the actual gain divided by the possible gain, were slightly better in the treatment group than in the control group, but the difference was statistically non-significant. An Analysis of Covariance (ANCOVA) statistic with pretest scores as the covariate was conducted to test for significant differences between the treatment and control groups on the posttest. A second ANCOVA was used to determine the significance of differences between the treatment and control groups on the posttest scores, after controlling for sex, GPA, academic status, experience with clickers, and instructional style. The results indicated a small increase in learning gains but these were not statistically significant. The data did not support an increase in learning based on the use of the CPS technology. This study adds to the body of research that questions whether CPS technology merits classroom adaptation.

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Concerns over the quality and amount of science teaching in Australian primary schools has led to a concentration of research on the methods of delivery of science education. There is a growing interest in both Australian and International contexts on building teacher knowledge and confidence to teach science, how science is taught at the primary school level and also how pre-service teachers are prepared to teach science. The Science Teacher Education Partnerships with Schools (STEPS) project is one response to these concerns. The STEPS project is a collaboration of five Australian universities that each independently set-up their own school-based partnership approaches with schools to deliver their science education programs. Each university aimed to provide pre-service teachers with the genuine experience of teaching science while being supported by university teaching staff. The project has drawn on feedback from pre-service teachers, teachers, principals and teacher educators involved at the five universities to examine the prevailing practices and led to the development of a set of tools and process, referred to as the Interpretive Framework (IF)(Hobbs et al. 2015). The IF describes how to create and maintain effective partnerships with schools, based on this research. This current paper reports on a survey conducted in 2014 which aimed to feedback from teacher educators across Australia to explore the extent to which school-based teaching opportunities in science for PSTs were in use across the country and to identify the range of approaches and theories driving their practices. Some respondents were followed up for interview and key factors were analysed and reported here. These data will be used to further refine the IF.

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The following paper explores the use of collaborative pedagogical approaches to advance foundational architectural design education, by linking design process to sustainable technology principles. After a brief discussion on architectural design education, the mentioned collaborative approach is described. This approach facilitates students’ exchange of knowledge between two courses, despite no explicit/assessable requirement to do so. The result for the students is deeper learning and a design process that is enriched through collaboration with sustainable technology. The success of this approach has been measured through questionnaires, evaluation surveys, and a comparative assessment of students common to both courses. The paper focuses on the challenges and innovations in connecting architectural design and technology education, where students are encouraged to implement lessons learnt, thereby closing the gap that these courses have traditionally represented.

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Explanations of the role of analogies in learning science at a cognitive level are made in terms of creating bridges between new information and students’ prior knowledge. In this empirical study of learning with analogies in an 11th grade chemistry class, we explore an alternative explanation at the "social" level where analogy shapes classroom discourse. Students in the study developed analogies within small groups and with their teacher. These classroom interactions were monitored to identify changes in discourse that took place through these activities. Beginning from socio-cultural perspectives and hybridity, we investigated classroom discourse during analogical activities. From our analyses, we theorized a merged discourse that explains how the analog discourse becomes intertwined with the target discourse generating a transitional state where meanings, signs, symbols, and practices are in flux. Three categories were developed that capture how students intertwined the analog and target discourses—merged words, merged utterances/sentences, and merged practices.

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The development of scientifically literate citizens remains an important priority of science education; however, growing evidence of students’ disenchantment with school science continues to challenge the realisation of this aim. This triangulation mixed methods study investigated the learning experiences of 152 9th grade students as they participated in an online science-writing project on the socioscientific issue of biosecurity. Students wrote a series of hybridized scientific narratives, or BioStories, that integrate scientific information about biosecurity with narrative storylines. The students completed an online Likert-style questionnaire, the BioQuiz, which examined selected aspects of their attitudes toward science and science learning, prior to their participation in the project, and upon completion of the writing tasks. Statistical analyses of these results and interview data obtained from participating students suggest that hybridized writing about a socioscientific issue developed more positive attitudes toward science and science learning, particularly in terms of the students’ interest and enjoyment. Implications for research and teaching are also discussed.

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Teachers often have difficulty implementing inquiry-based activities, leading to the arousal of negative emotions. In this multicase study of beginning physics teachers in Australia, we were interested in the extent to which their expectations were realized and how their classroom experiences while implementing extended experimental investigations (EEIs) produced emotional states that mediated their teaching practices. Against rhetoric of fear expressed by their senior colleagues, three of the four teachers were surprised by the positive outcomes from their supervision of EEIs for the first time. Two of these teachers experienced high intensity positive emotions in response to their students’ success. When student actions / outcomes did not meet their teachers’ expectations, frustration, anger, and disappointment were experienced by the teachers, as predicted by a sociological theory of human emotions (Turner, 2007). Over the course of the EEI projects, the teachers’ practices changed along with their emotional states and their students’ achievements. We account for similarities and differences in the teachers’ emotional experiences in terms of context, prior experience, and expectations. The findings from this study provide insights into effective supervision practices that can be used to inform new and experienced teachers alike.

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In this paper, we report on how peer scaffolding was used to effect change in tertiary teaching practice and academic disposition in the use of Information and Communication Technology (ICT) in Science teaching and learning. We present a small-scale case study investigating the practice of one of this paper’s authors. It is told through two salient episodes which narratively describe the scaffolding used to support a teaching experiment. This was made possible through the national Teaching Teachers for the Future Project (2011-2012) which aimed to enhance the technological pedagogical capability of pre-service teachers across Australia. The outcome was a demonstrable shift in the academic’s disposition towards the use and benefits of ICT in teaching science and an increase in skills and confidence for both the academic and his students. This study and its outcomes fit within the contemporary push to “re-imagine” the teaching of Science, and more broadly of STEM, in schools.

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In this paper, we report on how peer scaffolding was used to effect change in tertiary teaching practice and academic disposition in the use of Information and Communication Technology (ICT) in Science teaching and learning. We present a small-scale case study investigating the practice of one of this paper’s authors. It is told through two salient episodes which narratively describe the scaffolding used to support a teaching experiment. This was made possible through the national Teaching Teachers for the Future Project (2011-2012) which aimed to enhance the technological pedagogical capability of pre-service teachers across Australia. The outcome was a demonstrable shift in the academic’s disposition towards the use and benefits of ICT in teaching science and an increase in skills and confidence for both the academic and his students. This study and its outcomes fit within the contemporary push to “re-imagine” the teaching of Science, and more broadly of STEM, in schools.

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Curriculum developers and researchers have promoted context-based programmes to arrest waning student interest and participation in the enabling sciences at high school and university. Context-based programmes aim for student connections between scientific discourse and real-world contexts to elevate curricular relevance without diminishing conceptual understanding. This interpretive study explored the learning transactions in one 11th grade context-based chemistry classroom where the context was the local creek. The dialectic of agency/structure was used as a lens to examine how the practices in classroom interactions afforded students the agency for learning. The results suggest that first, fluid transitions were evident in the student–student interactions involving successful students; and second, fluid transitions linking concepts to context were evident in the students’ successful reports. The study reveals that the structures of writing and collaborating in groups enabled students’ agential and fluent movement between the field of the real-world creek and the field of the formal chemistry classroom. Furthermore, characteristics of academically successful students in context-based chemistry are highlighted. Research, teaching, and future directions for context-based science teaching are discussed.

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It is known that bioscience is perceived to be difficult and causes anxiety within undergraduate nursing students; yet, commencing students' perceptions of bioscience is not known. Therefore, the aim of this study was to ascertain incoming students' perceptions, knowledge and approaches to learning bioscience. Incoming students to the Bachelor of Nursing completed a questionnaire prior to undertaking bioscience. Two hundred and seventy three students completed the questionnaire that explored their expectations, preconceptions of bioscience content, approaches to learning bioscience, and relationship to clinical practice in the context of biosciences. Participant ages ranged from 17 to 53 (mean 23 years), and 78% of students had completed at least one secondary school science subject, of which 60% had studied biology. Overall, students' preconceptions included anxiety about studying bioscience, bioscience being difficult and harder than nursing subjects, and that more content will be required for bioscience than nursing subjects. Analysis using ANOVA revealed the relationships for secondary school science and age on student responses. A significant effect of secondary school science was found for science in school being advantageous for bioscience (p = 0.010), understanding what bioscience entails (p = 0.002), needing to study science prior to the start of the semester (p = 0.009), and that bioscience is considered difficult (p = 0.029). A significant effect of age was found for exams being more difficult than other assessments (p = 0.000) and for being able to see the relevance of nursing when reaching the workplace (p = 0.011). The findings also indicated that perceptions and associated anxieties related to bioscience were present in commencing students, similar to those which have been reported previously in established student groups. This strongly suggests that the faculty should attempt to dispel preconceptions about bioscience and target improved supports to facilitate the transition of students into the commencement of bioscience for nursing students.

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An overview of teaching and research activities in the area of plant anatomy at QUT is provided. The current status of teaching of technical skills in plant anatomy is discussed briefly. Examples of applications of plant anatomy to a diverse range of fields are provided, including the crossover between art and science.

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[Es]En este trabajo se aborda la problemática detectada como consecuencia del fracaso que presenta gran mayoría del alumnado de la E. U. de Magisterio de Bilbao, futuro profesorado de Educación Primaria (EP), en la aplicación creativa de conocimientos transmitidos en el aula de ciencias, esto es, en la resolución de problemas y en la explicación de fenómenos cotidianos del mundo que nos rodea. Para ello se ha analizado, por un lado, su capacitación en relación a varios tópicos de ciencias incluidos en el Área de Conocimiento del Medio en la EP, presentados en un contexto de ciencia en la vida cotidiana y su autovaloración en relación a su capacitación didáctica para abordarlos en aulas de ciencias escolares y, por otro, la metodología didáctica utilizada en las clases de ciencias que han recibido en etapas educativas previas a la universitaria.

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Este estudo se insere em uma abordagem Pós-estruturalista. Nele, o conceito de discurso desenvolvido por Laclau é utilizado como categoria de análise para investigar o processo de legitimação do saber científico. O conceito de recontextualização por hibridismo proposto por Lopes (2005; 2006a) orienta a análise dos discursos produzidos nos diferentes contextos de produção curricular, a partir da abordagem do ciclo de políticas desenvolvida por Bowe, Ball e Gold (1992)e Ball (1994). No trabalho, são identificadas as demandas articuladas nos discursos de uma comunidade de pesquisadores que têm investigado o ensino de ciências nos anos iniciais do Ensino Fundamental. O estudo também apresenta uma reflexão produzida a partir de dados reunidos em uma pesquisa de cunho etnográfico,realizada em duas escolas da rede municipal de ensino do município do Rio de Janeiro. As análises indicam que o discurso educacional sobre o ensino de ciências expressa sentidos em disputa que oscilam entre a incorporação de novos paradigmas de ciência e de currículo e a manutenção de marcas que procuram preservar a ciência como conhecimento superior, contribuindo para a reafirmação dos princípios racionais que estão na base de constituição da escola como instituição da modernidade e associadas ao processo de hegemonização desse saber.