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101.
Vaille Dawson 《International Journal of Science Education》2013,35(7):1024-1043
Climate change is one of the most significant science issues facing humanity; yet, teaching students about climate change is challenging: not only is it multidisciplinary, but also it is contentious and debated in political, social and media forums. Students need to be equipped with an understanding of climate change science to be able to participate in this discourse. The purpose of this study was to examine Western Australian high school students’ understanding of climate change and the greenhouse effect, in order to identify their alternative conceptions about climate change science and provide a baseline for more effective teaching. A questionnaire designed to elicit students’ understanding and alternative conceptions was completed by 438 Year 10 students (14–15 years old). A further 20 students were interviewed. Results showed that students know different features of both climate change and the greenhouse effect, however not necessarily all of them and the relationships between. Five categories of alternative conceptions were identified. The categories were (1) the greenhouse effect and the ozone layer; (2) types of greenhouse gases; (3) types of radiation; (4) weather and climate and (5) air pollution. These findings provide science educators a basis upon which to develop strategies and curriculum resources to improve their students’ understanding and decision-making skills about the socioscientific issue, climate change. 相似文献
102.
Fred Chou Janelle Kwee Robert Lees Kara Firth Jordan Florence Jake Harms 《Educational Action Research》2013,21(3):436-459
This Youth Participatory Action Research (YPAR) study represents a collaboration with six students from alternative education to inquire about the experiences of vulnerable youth – students in alternative education and youth who have dropped out of school. Utilizing the Enhanced Critical Incident Technique, youth researchers asked their peers what helped and hindered their retention and success in mainstream and alternative education. Youth researchers engaged in authentic participation and took part in the iterative phases of YPAR – critical reflection and social action. Their involvement empowered them to advocate for their peers by disseminating the results and recommendations to key stakeholders within the community. Youth researchers conducted semi-structured interviews with 18 participants. Overall, the findings show that relationships with staff and peers, flexibility, psychosocial and academic supports, and personal circumstances are vital in helping vulnerable students succeed in school. Engagement in YPAR provided insight into working with vulnerable youth in a manner that promotes agency and social change within educational institutions. 相似文献
103.
Early years curriculum: funds of knowledge as a conceptual framework for children’s interests 总被引:1,自引:1,他引:0
Children’s interests are frequently cited as a source of early‐years curricula. Yet, research has rarely considered the nature of these interests beyond the play‐based environment of early‐childhood education. This paper reports findings from a qualitative, interpretivist study in two early childhood settings in Aotearoa/New Zealand. Using participant observation, interviews, and documentation, the study examined children’s interests and teachers’ engagement with these in curriculum interactions. Evidence suggested children’s interests were stimulated by their ‘intent participation’ in family and community experiences and encapsulated in the notion of ‘funds of knowledge’. The concept of funds of knowledge provides a coherent analytic framework for teachers to recognize children’s interests and extend teachers’ curriculum planning focus beyond that of a child‐centred play‐based learning environment. 相似文献
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With trends across many countries still indicating the decline of student interest in school science and diminishing numbers of students studying science beyond the compulsory years, it seems that the field remains in crisis. To address these unfortunate trends, there needs to be a greater emphasis on science education research that highlights the good news stories. For example, what are science teachers actually doing in their classrooms to increase student interest and understanding in science? This article focuses on the science teaching beliefs and practices of four Western Australian primary school teachers. The teachers were nominated by a professional colleague as effective practitioners. The study involved gathering information from classroom observations and teacher interviews to provide background information to assist in developing understandings of these teachers and their science teaching. This article reports on the initial findings drawn from Deanne A, Kate B, Lisa C and Rebecca D. Their practices were organised into the following six categories: classroom environment; conceptual knowledge and procedural skills; teaching strategies and approaches; student-specific considerations; teacher-specific considerations; and context-specific considerations. In examining the components contributing to these categories, it was evident that the teachers’ beliefs, as well as the contextual factors inherent in each classroom environment, influenced how and why they teach science in the ways they do. 相似文献
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Viswanath P. Kurup Banani Banerjee Kevin J. Kelly Jordan N. Fink 《Indian journal of clinical biochemistry : IJCB》2000,15(1):31-42
Fungi are non-chlorophyllus microorganisms, which constitutes the main source of outdoor and indoor allergens. The antigens present in the spores and fragments of hyphae induce allergic responses in sensitized patients. The frequently recognized fungi associated with asthma include Alternaria, Cladosporium, Aspergillus, and Penicillium. With the advent of molecular biology techniques a number of fungal genes encoding relevant allergens have been cloned and the expressed allergens purified and characterized. In this review, we have presented the recent developments, where recombinant allergens have been used in the precise diagnosis of fungal allergy. We have also discussed the role played by these allergens and the T- and B-cell epitopes in the immune mechanism in fungal allergy. 相似文献
110.
Michael P. Jordan 《Instructional Science》1980,9(3):221-252
Linguistic analysis of short published reports leads to the presentation of an aigorithm that depicts the problem-solving process in terms of a series of evaluative questions. The work shows how reports enable us to define in detail the various stages of problem solving, and it shows that an understanding of these various stages enables us to recognise information structures in written texts; the writing of brief reports of high-priority information on which the whole thinking process is based is thus seen as a vital part of the problem-solving process. One report is analysed in detail to demonstrate the close relationship between information structures in the text and the real-life thought'action process it describes. There is discussion of how paragraphs, sentences and signals within the sentences enable the writer to communicate the information in a conceptual array that represents the actual thought/action process it describes. Educational implications for inter-sentential coherence, discourse analysis, and writing structures, and control of research through written reports are all discussed. 相似文献