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51.
Gill Johnson 《Education 3-13》2018,46(7):729-740
The role and deployment of teaching assistants (TAs) (paraprofessionals) have changed significantly over the past decade; TAs in England hold greater responsibilities in terms of their wider role in classrooms and, specifically, in relation to their support for children with literacy difficulties in a primary school context. The impact of their role has been both questioned and challenged; nevertheless, in relation to literacy support, their role is widely valued by schools, and evidence exists that there is a positive impact on attainment. This paper reports on a case study of an early literacy intervention implemented by TAs which, it is argued, provides a positive model of TA deployment and literacy intervention implementation. It is also argued that this model of intervention offers a scaffold to the TAs themselves, who are then far better placed to scaffold the literacy learning of children with individual needs. 相似文献
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单片机是一门实用性和和应用性很强的课程,但单片机传统的实验教学方法和设备不能很好地满足实际教学需要,本文详细的阐述了改革的必要性和新方案,并对仿真软件进行比较。 相似文献
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根据国内外超声技术的发展现状,介绍了将超声技术引入黄金提取的原理,浸取机理、工艺过程和发展前景 相似文献
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现阶段地球物理三维勘探面临越来越复杂的问题,其要求更精细的三维网格剖分,现有的一些方法随着网格节点的增加其收敛速度相应减慢。对于应用中更复杂实际模型、更细密网格剖分以及更快收敛速度要求,难于有进一步提高。要有所突破,需借助计算数学最新进展,引入新的高效算法。多重网格法是近二十年迅速发展的一种求解微分方程近乎最优的新算法。本文首先简单介绍了多重网格法基本原理和运算格式,着重介绍了当前国内外多重网格法在地球物理正反演中的应用成果和发展现状。此外,对多重网格法在地球物理正反演中的应用前景及发展趋势进行了展望。 相似文献
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Shigehiko Hasumi 《Inter-Asia Cultural Studies》2013,14(2):184-194
Abstract Dust in the Wind, a color film set in the verdant mountains of Taiwan, includes two scenes almost identical to the black‐and‐white and silent films by the Lumières, shot at the end of the nineteenth century: Arrival of a Train at La Ciotat and Passage Through a Railway Tunnel. As Hou’s mise‐en‐scène consists of the fixed camera angle with its long takes, it is the means of transportation that brings motion to the film, controlling dramatic elements of each work. The luxury cars, which appear in his first three romantic comedies, symbolize the rich and the motorbike the common people. The drivers are all young women, but an automobile cannot be a setting for love. In Daughter of the Nile and Goodbye South, Goodbye, the cars offer no protection to men trying to escape. Compared with the thematic negativity that the automobile possess in Hou’s universe, the motion of the passing trains, taken from many angles, offers rich and profound significations. When the camera is inside the train, the protagonists are taciturn, such as the two adolescents in Dust in the Wind who show their intimacy with each other without saying words. When the camera is next to the tracks or on the platform, the situation changes. In A Time to Live, A Time to Die, Hou depicts the grandmother sitting next to her grandson at a shop by the train and sipping sweet ice while behind them passes a freight train that emphasizes the anxious solitude of the old woman exiled from her homeland. A sublime depiction of the sense of powerlessness of both the deaf‐mute photographer and his family before a passing train is the scene on the deserted platform in A City of Sadness. In Café Lumière, the young woman and her friend in the passing train recognize how valuable they are to each other without saying words. This taciturnity suggests a certain kind of love that needs no sexual language. 相似文献
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用SKC-2000型光透过式粒度分布测试仪测试发泡剂ADC粒度.在测试之前,发泡剂ADC样品需经超声波分散仪进行分散处理,消除部分团聚颗粒后才能准确测定粒度.本文探讨了分散剂、超声波分散时间、搅拌取样等因素对发泡剂ADC粒度测试值的影响. 相似文献
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INTRODUCTION Parts of complex surfaces have found wide ap-plications today in airplane,ship,automobile industry,medical science,etc.How to detect the internal de-fects of parts of complex surfaces efficiently and ac-curately is an important issue.Due to its special ad-vantages of high sensitivity,good detection,strong penetration ability,and harmlessness to human body,ultrasonic detection has become a most important method of Nondestructive Test(NDT).However,at present in China,to detec… 相似文献