901 resultados para middle school science


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This response to the two papers (by Rodriguez and Carlone et al.) on science education reform acknowledges first the coherence of the arguments presented around four reform narratives; that of the process of becoming science-enthusiastic, the nature of beliefs of science reform teachers, the barriers to reform, and the institutional expressions of these barriers. In the commentary I first discuss the reform ‘problem’ in terms of two interacting issues—the purposes of school science and the value placed on it in an elementary school curriculum. The insights produced in these papers are then used to reflect on a range of experiences and current policy debates in Australia. Finally, in this commentary, I point out: (a) the relationship of the papers to the reform issue of opposition to Standards Based Science (SBS) from proponents’ traditional conceptions of science education, discussing how this more specific reform question relates to the two papers; and (b) the singular nature of the I-meanings characterised in the Carlone et al. paper, describing (using Australian examples) how the notions of tempered radicals and I-meanings might also be used to characterise complexities in the processes of school science reform.

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There is considerable international concern about science education based on the number of students engaged with science and mathematics, and research showing student disenchantment with school science curricula. ln this presentation I will trace through a history of concerns with school science, and describe the recommendations and curriculum responses to these concerns internationally and particularly in Australia. The new Australian Science Curriculum is based around ideas related to scientific literacy and inquiry curriculum, and includes science inquiry skills and science as a human endeavour' as major strands. I will describe the features of the course and raise the question - does it represent a productive way forward? The various aspects of the course are related to current directions in science education research, and examples will be given of my own involvement in national curriculum initiatives, into school-community links, and Deakin research into a pedagogy that focuses on student generation of representations, as examples of ways forward for improving student engagement with learning science.

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The aim of this chapter is to establish values as a key component of science and environmental education, consistent with the troika framework, and to explore the implications of this for teacher education. In the chapter, we review research that has increasingly placed values at the centre of the process of learning science, and central also in framing students' responses to school science. We then present findings from three projects that explore the relationship of values to teaching and learning science: first, an exploration of the pedagogies of effective teachers of science; second,an environmental education project in which students explore science and sustainability ideas in the context of a community exchange program in Mexico and Alaska; and, third, a teachcr education initiative focused on place-based education. In the chapter, we argue that learning science and engaging with the environment entails pedagogies that link conceptual learning, values and community.

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In this paper we will examine Shulman’s notion of signature pedagogies for its usefulness extended to school science, to analyse a representation-intensive pedagogy that lays claim to bringing school science closer to the knowledge building practices of science itself. Two case studies of teaching and learning will be presented based on research in primary and secondary schools that involved working closely with teachers to develop and validate the pedagogy. Video images of classrooms, interviews with students and teachers, and documentation of students’ work, were used to construct insights into the teaching and learning process. It is argued that Shulman’s notion of professional practice as involving apprenticeships of knowledge, practice and identity provides a useful lens through which to view this innovation. Shulman’s characterisation of signature pedagogy is used to identify key features of the approach.

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This paper uses cultural historical activity theory to examine the interactions between the choices primary teachers make in the use of practical activities in their teaching of science and the purposes they attribute to these; their emotions, background and beliefs; and the construction of their identities as teachers of science. It draws on four case studies of science lessons taught over a term by four exemplary teachers of primary science. The data collected includes video recordings of science lessons, interviews with each teacher and some of their students, student work, teachers’ planning documents and observation notes. In this paper, we examine the reflexive relationship between emotion and identity, and the teachers’ objectives for their students’ learning; the purposes (scientific and social) the teachers attributed to practical activities; and the ways in which the teachers incorporated practical activities into their lessons. The findings suggest that it is not enough to address content knowledge, pedagogy and pedagogical content knowledge in teacher education, but that efforts also need to be made to influence prospective primary teachers’ identities as scientific thinkers and their emotional commitment to their students’ learning of science.

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In this book we argue for an approach to representational work in school science learning and teaching that engages participants, is epistemologically sound, aligns with knowledge-building practices in the discipline, and draws on extensive classroom study. We review in this chapter current research agendas around student representational work in science learning, including the assumptions, rationale and research practices of these agendas. We do this (a) to clarify precisely what we see as the diversity of current mainstream thinking and practices around representational activity, and (b) to articulate what is distinctive about our own contribution, noting the traditions, influences and prior research we draw on. We begin by noting the current dominant role of image generation and analysis in much contemporary science, and its implications for science in schools.

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It is well established that teacher-student interactive talk is critically important in supporting students to reason and learn in science. Teachers’ discursive moves in responding to student input are keys to developing and supporting a rich vein of interactive discussion. While initiation-response-evaluation (IRE) sequences have been shown to dominate science classroom discourse patterns worldwide, teacher ‘prompts’ are important for opening up opportunities for reasoning and higher level learning. This paper describes the analysis of video sequences for five expert elementary teachers across three countries to develop a coding scheme for these teachers’ ‘discursive moves’ to guide and respond to student inputs, that unpacks more completely the strategies they use to develop interactive discussion. The analysis showed varied patterns of knowledge transaction, with teacher discursive moves serving three broad purposes: to elicit and acknowledge student responses, to clarify and to extend student ideas. The patterns of talk were also related to the dialogic-authoritative distinction in analysis of talk, to show that this distinction is only clear for particular types of expert practice. While the particular moves teachers use vary across parts of lessons we argue that they are revealing of teachers’ particular beliefs and of systemic constraints, and that there exist patterns in the use of the discursive categories that capture how expert teachers build deeper level knowledge in classroom interactive talk. We describe ways in which the analysis can inform science teacher education and the professional learning of teachers of science.

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Sleep helps the consolidation of declarative memories in the laboratory, but the pro-mnemonic effect of daytime naps in schools is yet to be fully characterized. While a few studies indicate that sleep can indeed benefit school learning, it remains unclear how best to use it. Here we set out to evaluate the influence of daytime naps on the duration of declarative memories learned in school by students of 10–15 years old. A total of 584 students from 6th grade were investigated. Students within a regular classroom were exposed to a 15-min lecture on new declarative contents, absent from the standard curriculum for this age group. The students were then randomly sorted into nap and non-nap groups. Students in the nap group were conducted to a quiet room with mats, received sleep masks and were invited to sleep. At the same time, students in the non-nap group attended regular school classes given by their usual teacher (Experiment I), or English classes given by another experimenter (Experiment II). These 2 versions of the study differed in a number of ways. In Experiment I (n = 371), students were pre-tested on lecture-related contents before the lecture, were invited to nap for up to 2 h, and after 1, 2, or 5 days received surprise tests with similar content but different wording and question order. In Experiment II (n = 213), students were invited to nap for up to 50 min (duration of a regular class); surprise tests were applied immediately after the lecture, and repeated after 5, 30, or 110 days. Experiment I showed a significant ∼10% gain in test scores for both nap and non-nap groups 1 day after learning, in comparison with pre-test scores. This gain was sustained in the nap group after 2 and 5 days, but in the non-nap group it decayed completely after 5 days. In Experiment II, the nap group showed significantly higher scores than the non-nap group at all times tested, thus precluding specific conclusions. The results suggest that sleep can be used to enhance the duration of memory contents learned in school.

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Using robots for teaching is one approach that has gathered good results on Middle-School, High-School and Universities. Robotics gives chance to experiment concepts of a broad range of disciplines, principally those from Engineering courses and Computer Science. However, there are not many kits that enables the use of robotics in classroom. This article describes the methodologies to implement tools which serves as test beds for the use of robotics to teach Computer Science and Engineering. Therefore, it proposes the development of a flexible, low cost hardware to integrate sensors and control actuators commonly found on mobile robots, the development of a mobile robot device whose sensors and actuators allows the experimentation of different concepts, and an environment for the implementation of control algorithms through a computer network. This paper describes each one of these tools and discusses the implementation issues and future works. © 2010 IEEE.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Our work aims to discuss the teaching of science in the context of informal education. Thus, we present and analyze the results of an initiative that we have made seeking to interest high school students to study sciences and technology. The Energy shows are activities which are presented in experimental demonstrations of science concepts to middle school students. After the show the students respond to a questionnaire which formed the basis for this study. The results indicate that the achievement of shows have had an impact on students.

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This action research paper was about a mandatory math club of seventh graders that met once per week over a 12-week period. The students gathered in the classroom during their regularly scheduled math class. The focus of the math club was to solve challenging math problems, usually cooperatively, and sometimes competitively. The math club activities varied from week to week to offer an element of surprise. Frequently, the students presented their solutions to peers, along with an explanation of the way they solved the problem. Instruments were used to collect information about problem-solving accuracy, student attitudes, and student and teacher behaviors. I discovered a slight improvement in problem solving. Also, on Math Club days, the teaching was less teacher-centered and more student-centered. As a result of this research, I plan to offer my middle school students more problem-solving opportunities and I plan to allow my students to work cooperatively on a regular basis.

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In this action research study of my classroom of 8th grade mathematics, I investigated the effect of reviewing basic fraction and decimal skills on student achievement and student readiness for freshman Algebra. I also investigated the effect on the quality of student work, with regards to legibility by having students grade each other’s work anonymously. I discovered that students need basic skill review with fractions and decimals, and by the end of the research their scores improved. However, their handwriting had not. At the end of the research, a majority of the students felt the review was important, and they were ready to take math next year in high school. As a result of this research, I plan to implement weekly fraction and decimal review assignments in all middle school grades: 6th, 7th, and 8th. In addition, fraction and decimals must be incorporated into daily assignments, where appropriate, in order to encourage students to retain these skills.

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Consultation is promoted throughout school psychology literature as a best practice in service delivery. This method has numerous benefits including being able to work with more students at one time, providing practitioners with preventative rather than strictly reactive strategies, and helping school professionals meet state and federal education mandates and initiatives. Despite the benefits of consultation, teachers are sometimes resistant to this process.This research studies variables hypothesized to lead to resistance (Gonzalez, Nelson, Gutkin, & Shwery, 2004) and attempts to distinguish differences between school level (elementary, middle and high school) with respect to the role played by these variables and to determine if the model used to identify students for special education services has an influence on resistance factors. Twenty-sixteachers in elementary and middle schools responded to a demographicquestionnaire and a survey developed by Gonzalez, et al. (2004). This survey measures eight variables related to resistance to consultation. No high school teachers responded to the request to participate. Results of analysis of variance indicated a significant difference in the teaching efficacy subscale with elementary teachers reporting more efficacy in teaching than middle school teachers. Results also indicate a significant difference in classroom managementefficacy with teachers who work in schools that identify students according to a Response to Intervention model reporting higher classroom management efficacy than teachers who work in schools that identify students according to a combined method of refer-test-place/RtI combination model. Implications, limitations and directions for future research are discussed.