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Concept mapping has been used effectively to represent understanding of afield of knowledge. The maps are highly individualistic and idiosyncratic. Three high‐performing junior college students, three average performing junior college students and two university physics teachers constructed maps using 22 electricity concepts. In this study several previously used and newly developed measures were applied to the maps in an attempt to gain further insight into differences in the quality of understanding of the three groups. It was found that the concept maps constructed by high performing students differed from those of average performing students and closely resembled the concept maps of physics experts, especially when the quality of the links between concepts was taken into account. 相似文献
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Damien Page 《British Journal of Sociology of Education》2017,38(7):991-1006
Schools are risky places: the risk of a poor Ofsted report, the risk of sliding down league tables, the risk of teachers abusing children, the risk of teachers being falsely accused of abuse. As a result of risk anxiety and the ever-increasing sophistication of technology, the surveillance of teachers has proliferated, becoming a future-oriented pursuit to manage this risk. Drawing on the surveillance studies literature, this article attempts to theorise the surveillance of teachers. Firstly the article argues that there are three types of teacher surveillance: the vertical perpetuated by Ofsted and senior school leaders such as teaching observations and learning walks, but also students recording their teachers on mobile phones; horizontal surveillance enacted by peers in terms of concertive control, but also parental surveillance via online and offline networks; and, finally, intrapersonal surveillance embracing reflective practice, data reporting and self-policing proximity from children. The article then concludes by arguing that while surveillance in schools embraces the themes of modern surveillance in general, by doggedly retaining the proximal and the interpersonal, it should be considered a hybrid form between traditional and modern forms of surveillance. 相似文献
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以pLF3为模板,PCR扩增得到葡聚糖酶的启动子,并将启动子基因重新连接到切除启动子基因及葡聚糖酶基因的pLF3载体上,构建pLF3-pro载体.采用PCR的方法扩增朱黄青霉总DNA中的α-1-6-葡聚糖酶基因,并插入到pLF3-pro载体上,构建pLF3-Pro-Dex质粒,以大肠杆菌DH5α为宿主菌,酶切验证及PCR验证均表明成功构建了pLF3-Pro-Dex质粒,且重组质粒中的α-1-6-葡聚糖酶基因与朱黄青霉中的α-1-6-葡聚糖酶基因有93%的同源性. 相似文献
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