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在中学课堂教学中，新课内容讲完后，收尾工作显得特别重要，政治课的收尾工作更是重要。本文以自己的亲身感受谈几点收尾的方法。 相似文献
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Abstract The purpose of these experiments was to investigate further the variable practice effect found by Shea and Kohl (1990). Experiment 1 was an initial attempt to determine the locus of the retention benefits demonstrated by subjects provided variable practice experiences. All groups received 20 acquisition blocks consisting of five test trials per block at a target of 150 N. The interval between test trials was either unfilled or filled, with additional trials consisting of the same target force, variable target forces, or practice on an unrelated motor task. The results indicated retention was not incremented (relative to an unfilled interval) by requiring subjects to perform an unrelated motor task in the intertest–trial interval. However, when the intertest–trial interval was filled with practice on related motor tasks, retention was significantly improved. Experiment 2 assessed the impact of increasing the number of related motor tasks interpolated between test trials. The results indicated filling the intertest–trial interval with one motor task resulted in large retention benefits relative to an unfilled interval. Further increases in the number of related motor tasks (3) interpolated between test trials resulted in only modest increments to retention. The results were consistent with the elaboration perspective proposed by Shea and Zimny (1983). The elaboration perspective proposes that the simultaneous presence of related items in working memory facilitates interitem elaborative and distinctive processing that ultimately results in retention benefits. 相似文献
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JIN Xiao-dong ZHAO Min-jian SUN Ling SHEN Wen-li 《浙江大学学报(A卷英文版)》2007,8(12):1884-1888
This paper presents an equalization algorithm for continuous phase modulation (CPM) over frequency-selective channels. A specific training sequence is first embedded in each data packet. By recursive least-squares (RLS) estimation, the channel information parameters can be acquired, and a fractionally spaced equalizer performs joint decoding and equalization. Simulation results show that the proposed algorithm can acquire the channel information parameters rapidly and accurately, and that the fractionally spaced equalizer can eliminate the intersymbol interference (ISI) effectively, and is not sensitive to timing inaccuracy, so this algorithm can be exploited for demodulation system in burst mode. 相似文献
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负载均衡是特大型科技(工程)项目异构组织知识集成云计算网络空间联盟进行异构平台之间知识资源最优化配置的关键问题,其解决机制将会极大地影响异构组织知识的有效性、准确性、时效性,大大提高了异构组织众多相关干系人利益相关者间的知识共享。本文基于蚁群优化算法,结合复杂动态环境下特大型科技(工程)项目异构组织知识的特征和知识需求,构建了复杂动态环境下特大型科技(工程)项目异构组织知识集成云计算网络空间联盟负载均衡机制,基本实现了知识载荷的均衡状态,以及异构组织知识资源最优化配置,提高异构组织知识的实效性。 相似文献
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Shawna Petersen‐Brown Ashlee R. Lundberg Jannine E. Ray Iwalani N. Dela Paz Carrington L. Riss Carlos J. Panahon 《Psychology in the schools》2019,56(6):977-991
Spaced practice, or the distribution of practice opportunities across time, is a well‐known and effective practice for improving retention. However, spaced practice is not effectively implemented in schools, perhapsl as a result of a lack of educationally relevant research in the area. We conducted an educationally relevant investigation of the spaced practice. Using a quasi‐experimental between‐subjects design, we taught 62 third‐ and fourth‐grade students eight math vocabulary words under two patterns of spaced practice (fixed interval and expanded interval) and massed practice. Results showed a benefit of spaced practice over massed practice, but no difference between fixed interval and expanded interval spaced practice. The findings suggest that spaced practice may be implemented to improve the retention of math vocabulary words; however, more research is needed to provide guidelines to support educators in implementing spaced practice in schools. 相似文献
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国内大学美育研究少有从人生美学的高度提出大学生健康快乐成长的艺术教育方案。"人生艺术化"的生活理念使得人们在审美的精神中实现对物欲利害的超越,获得审美的人生体验。这一命题从艺术与人生二者关系的多重维度展开,具有外在和内在两条逻辑架构路径。在美育方面,"人生艺术化"理念有助于大学生树立正确的价值观念和艺术化的人生态度,进而实现心理的健康平衡和幸福体验。 相似文献
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交易时间、交易量和交易价格是市场交易者最容易观察到的交易信号,这些信号所传递的信息必然对交易者的交易策略和交易过程产生影响。根据Manganelli基于不规则时间序列对交易时间、交易量和交易价格建立的动态系统模型,在考虑交易时间间隔的不规则性对价格波动性度量影响的基础上提出了改进模型,并利用中国股市的数据对改进前后的模型进行了实证比较。比较结果表明改进模型能更好地解释微观结构理论所揭示的交易时间、交易量和交易价格之间的动态关系及其对交易过程的影响。 相似文献
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方匡水 《郴州师范高等专科学校学报》2011,(3):61-63
篆刻艺术是书法（主要是篆书）和镌刻相结合,用印章特定形式表现的一门艺术。战国、秦汉、魏晋六朝时期为“古代篆刻艺术时期”,其篆刻艺术特点主要是根据字与字之间的相互关系设计出相宜的形式。而唐、宋时期是印章艺术向篆刻艺术发展的一个过渡时期。到了明清两代,篆刻艺术进入了复兴时期,流派纷呈。在当代,篆刻刀法发生了相应的变化,刀法的视觉冲击力不断被强化。 相似文献
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篆刻艺术是书法(主要是篆书)和镌刻相结合,用印章特定形式表现的一门艺术.战国、秦汉、魏晋六朝时期为“古代篆刻艺术时期”,其篆刻艺术特点主要是根据字与字之间的相互关系设计出相宜的形式.而唐、宋时期是印章艺术向篆刻艺术发展的一个过渡时期.到了明清两代,篆刻艺术进入了复兴时期,流派纷呈.在当代,篆刻刀法发生了相应的变化,刀法... 相似文献
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