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11.
Curriculum for Excellence in Scotland outlines a policy vision of a more progressive, integrated and holistic form of education; a commitment which contains an obligation for health and well-being (HWB) to be a responsibility of all teachers. A critical policy analysis approach was utilized in order to review school-level progress in different stages of policy development, i.e. policy formulation, legitimation, implementation and evaluation. Evidence was collected through 15 semi-structured interviews with head teachers, teacher education academics and staff with national and local authority quality improvement remits. Questions focused on: aims and curriculum goals; school culture; learning and teaching; partnership relationships and evaluations of practice. Findings suggest a high degree of support for curriculum aims, however, there were often problems communicating policy expectations (policy formulation). Thus, despite impressive examples of innovative practice in relation to school ethos, wider achievement and pupils’ broader general education (policy legitimation), there were also examples of HWB being constrained by senior school examinations and the backwash effect this had on curriculum planning and engagement with interdisciplinary learning approaches (policy implementation/evaluation). These findings have implications in terms of policy to practice coherence as well as highlighting the need for further more specific research evaluations.  相似文献   
12.
将NTM方法应用于非线性贝叶斯动态模型,给出了它的递推公式以及随机变量的数字特征的计算,与蒙特卡洛方法相比提高了效率和精度.  相似文献   
13.
质疑程序:GPA协定独特的实施机制设计   总被引:1,自引:0,他引:1  
质疑程序是独立于世界贸易组织争端解决机制之外保障GPA协定实施的自身特有程序设计,其本质是要求缔约方以书面形式规制一套保障供应商获得政府采购活动中期待利益的“非歧视的、及时的、透明且有效的程序”,并用法院或其它公平、独立的审查实体以确保实现.  相似文献   
14.
基于拓扑不变性和抛物线端点处可求切线,设计了一个高斯图闭域网中最小闭域计算算法,利用多边形逼近抛物线段的特点,改进多边形包含测试算法来实现闭域包含测试,可将高斯图闭域网分解成最小闭域集———单类型区域.最后给出了一个计算实例.  相似文献   
15.
This study was conducted to investigate Taiwan University students' perceptions (including experience, confidence and preference) of online academic help seeking (OAHS) and students' level of web-based learning self-efficacy (WLSE). Two instruments, OAHS questionnaire, consisting of information searching, formal and informal query scales, and WLSE questionnaire, including general and functional scales, were then validated through collecting the responses from 300 university students. Results indicate reciprocal relations between experience, confidence and preference in students' online academic help seeking behaviors. Students' academic help seeking behaviors were related to their general self-efficacy in a web-based course setting. Students' functional WLSE was related to their perceptions of information searching for OAHS. Findings of this study also imply that students' experience of seeking help from informal online channels is prominent when they participate in a web-based course.  相似文献   
16.
从数学教学中重视知识发生过程教学;引导学生从观察实际生活中建立数学模型;解题中构建求异探索;鼓励学生大胆质疑;营造良好的学习环境五个方面,阐明了培养学生创新思维能力的思路和途径.  相似文献   
17.
The Inductive Query By Example (IQBE) paradigm allows a system to automatically derive queries for a specific Information Retrieval System (IRS). Classic IRSs based on this paradigm [Smith, M., & Smith, M. (1997). The use of genetic programming to build Boolean queries for text retrieval through relevance feedback. Journal of Information Science, 23(6), 423–431] generate a single solution (Boolean query) in each run, that with the best fitness value, which is usually based on a weighted combination of the basic performance criteria, precision and recall.  相似文献   
18.
The performance of parallel query processing in a cluster of index servers is crucial for modern web search systems. In such a scenario, the response time basically depends on the execution time of the slowest server to generate a partial ranked answer. Previous approaches investigate performance issues in this context using simulation, analytical modeling, experimentation, or a combination of them. Nevertheless, these approaches simply assume balanced execution times among homogeneous servers (by uniformly distributing the document collection among them, for instance)—a scenario that we did not observe in our experimentation. On the contrary, we found that even with a balanced distribution of the document collection among index servers, correlations between the frequency of a term in the query log and the size of its corresponding inverted list lead to imbalances in query execution times at these same servers, because these correlations affect disk caching behavior. Further, the relative sizes of the main memory at each server (with regard to disk space usage) and the number of servers participating in the parallel query processing also affect imbalance of local query execution times. These are relevant findings that have not been reported before and that, we understand, are of interest to the research community.  相似文献   
19.
基于VB和SuperMap Objects 2008平台,设计实现地形图图幅查询系统.该系统可在1954年北京坐标系或1980年西安坐标系下,实现任意单点或批量坐标解算任意国家基本比例尺地形图新、旧图幅编号,并能根据任意新、旧图幅编号计算四角图廓坐标,并可视化输出.  相似文献   
20.
独立建设“创新实验室”的必要性质疑   总被引:2,自引:1,他引:1  
高等院校所提倡的创新实验教学主要应定位在特定知识领域基础知识体系上的突破,而不应一味的追求创新.近年来国内掀起一股独立建设“创新实验室”的热潮,针对此“创新实验室”蓬勃兴起的现象,指出创新性是实验室的应有本质特征,传统实验室创新教育功能的不足是应有功能的缺失.对独立建设“创新实验室”的必要性提出质疑,主张传统实验室创新教育功能的本性“回归”.认为“传统”与“创新”不但不矛盾,而且是统一的,两者的组合才是一个真正实验室所应扮演的完整“角色”.补充传统实验室缺失的创新教育功能是我国高等院校实验室建设的一条可选道路.  相似文献   
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