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地理主题式问题网络的结构化创设与单元设计——以“地球上的水”为例
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作者 冯靓 袁帅 《地理教育》 2024年第12期27-31,共5页
核心素养培育时代下的地理教育更加注重学生对结构性知识的把握,从而促进其问题解决能力的提升。结构性知识的发展需要匹配相应的教学模式,因此,本文遵循先梳理单元概念体系,再构建结构化问题网络的过程,对人教版必修一第三章“地球上... 核心素养培育时代下的地理教育更加注重学生对结构性知识的把握,从而促进其问题解决能力的提升。结构性知识的发展需要匹配相应的教学模式,因此,本文遵循先梳理单元概念体系,再构建结构化问题网络的过程,对人教版必修一第三章“地球上的水”展开主题式结构化的单元设计与教学实践。基于课标要求和真实情境,创设结构化问题网络引导学生学习,以期达到整合教材内容、促进学生地理学科核心素养发展的目的。 展开更多
关键词 地理主题式教学 结构化问题网络 单元设计
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Remarks on the Efficiency of Bionic Optimisation Strategies
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作者 Simon Gekeler Julian Pandtle +1 位作者 Rolf Steinbuch Christoph Widmann 《Journal of Mathematics and System Science》 2014年第3期139-154,共16页
Bionic optimisation is one of the most popular and efficient applications of bionic engineering. As there are many different approaches and terms being used, we try to come up with a structuring of the strategies and ... Bionic optimisation is one of the most popular and efficient applications of bionic engineering. As there are many different approaches and terms being used, we try to come up with a structuring of the strategies and compare the efficiency of the different methods. The methods mostly proposed in literature may be classified into evolutionary, particle swarm and artificial neural net optimisation. Some related classes have to be mentioned as the non-sexual fern optimisation and the response surfaces, which are close to the neuron nets. To come up with a measure of the efficiency that allows to take into account some of the published results the technical optimisation problems were derived from the ones given in literature. They deal with elastic studies of frame structures, as the computing time for each individual is very short. General proposals, which approach to use may not be given. It seems to be a good idea to learn about the applicability of the different methods at different problem classes and then do the optimisation according to these experiences. Furthermore in many cases there is some evidence that switching from one method to another improves the performance. Finally the identification of the exact position of the optimum by gradient methods is often more efficient than long random walks around local maxima. 展开更多
关键词 Bionic optimisation EFFICIENCY evolutionary optimisation Particle Swarm optimisation artificial neural nets.
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