语文教科书体系的历史演变及思考     

王学丽  武玉鹏 《廊坊师范学院学报》2013,(3):116-119

考察我国语文教科书的历史发现,教科书的体系一直是一个重要的领域。教科书的体系,从总体上主要可以分为合编型和分编型两种。合编型语文教科书体系的发展主要经过了纯粹文选型、单元组合型和模块型三个阶段,分编型语文教科书先后经历了读写与语文知识分编、文言与白话分编、汉语与文学分编、阅读与写作分编等阶段。纵观我国语文教科书体系的演变,可以看出教材编写者一直都在探索教科书体系的科学化。而要探索教科书体系的科学化,就要处理好教材内容的序列性和综合性、语文知识和选文这两对重要的关系。  相似文献   

探索名篇选读为导向的英国文学课程教学模式     

周丽华  孙骅 《海外英语》2013,(8)

人文素质的培养是高校英语专业人才培养的基本准则,也是实现教学型和应用型大学的目标定位及人才培养目标。如何将英语专业重要课程之一的《英国文学》课程改革落实到实处,是提高学生人文素质为导向的英语专业人才培养方案中迫切需要解决的问题。课题通过剖析高等学校英语专业英国文学课程教学中存在的问题,研究实践教学中侧重以名篇选读为导向的英国文学课程教与学的案例,探寻英国文学课程改革的新思路,以此促进高等学校英语专业的高年级整体教学。  相似文献   

找个好理由——从教学现场看“好诗”     

洪淑苓 《海南师范大学学报(社会科学版)》2008,21(6):58-63

论文透过现代诗的教学经验,了解学生对诗的喜好,并由此思考什么是＂好诗＂。依据学生对白灵主编《九十一年诗选》的讨论稿以及本人＂现代女诗人作品选＂的课程响应,可知学生喜爱的作品有四个特点：一,文字浅显可读,简洁顺畅,较易吸引学生阅读;二,题材、主题可亲近,较易引起经验上的共鸣;三,以抒情为主,表达亲情或爱情的作品,学生最易进入诗境;四,具有象征性、思考性的诗,可以让不喜风花雪月的学生,从知性的角度去欣赏诗。  相似文献   

Burnside定理在组合计数问题中的应用     

董金辉 《黄冈师范学院学报》2008,28(3):13-14

针对一类组合计数方面的实际问题,利用二面体群、正多面体的对称性群等群的相关知识给出确切的数学描述,并运用Burnside轨道计数定理有效地加以解决,突破了用枚举法解决此类问题的局限性．  相似文献   

工件加工时间退化且可拒的带优势关系流水作业问题的动态规划算法     

程予绍  孙世杰 《上海大学学报(英文版)》2008,12(6):471-474

The permutation flow shop scheduling problems with deteriorating jobs and rejection on dominant machines were studied. The objectives are to minimize the makespan of scheduled jobs plus the total rejection penalty and the total completion time of scheduled jobs plus the total rejection penalty. For each objective, polynomial time algorithms based on dynamic programming were presented.  相似文献   

一类基于人工免疫系统与极值优化的混合算法求解流水作业调度问题     

孙凯  杨根科 《上海大学学报(英文版)》2008,12(4):352-357

The permutation flowshop scheduling problem (PFSP) is one of the most well-known and well-studied production scheduling problems with strong industrial background. This paper presents a new hybrid optimization algorithm which combines the strong global search ability of artificial immune system (AIS) with a strong local search ability of extremal optimization (EO) algorithm. The proposed algorithm is applied to a set of benchmark problems with a makespan criterion. Performance of the algorithm is evaluated. Comparison results indicate that this new method is an effective and competitive approach to the PFSP.  相似文献   

用MATHEMATICA求解置换群问题     

王积社  林妙芝 《韩山师范学院学报》2008,29(6)

研究了置换矩阵与置换群之间的关系,在置换矩阵的基础上,用Matllematica语言设计出若干关于置换计算问题的程序．  相似文献   

Decryption of pure-position permutation algorithms     

赵晓宇  陈刚  张亶  王肖虹  董光昌 《浙江大学学报(A卷英文版)》2004,5(7):803-809

Pure position permutation image encryption algorithms,commonly used as image encryption investigated in this work are unfortunately frail under known-text attack.In view of the weakness of pure position permutation algorithm,we put forward an effective decryption algorithm for all pure-position permutation algorithms.First,a summary of the pure position permutation image encryption algorithms is given by introducing the concept of ergodic matrices.Then,by using probability theory and algebraic principles,the decryption probability of pure-position permutation algorithms is verified theoretically; and then,by defining the operation system of fuzzy ergodic matrices,we improve a specific decryption algorithm.Finally,some simulation results are shown.  相似文献   

关于数学占位问题的探讨     

李士芳 《北京工业职业技术学院学报》2008,7(4):97-98

作为计数的应用,本文讨论占位问题,也就是计算把一些质点（或球）放到一些格子中的不同放法的数目。对不同性质的质点及不同性质的格子,得到不同放法的数目可以截然不同。在统计物理中有一些就对应于不同的统计法。  相似文献   

Random Permutation Testing Applied to Measurement Invariance Testing with Ordered-Categorical Indicators     

Benjamin A. Kite  Terrence D. Jorgensen  Po-Yi Chen 《Structural equation modeling》2018,25(4):573-587

We describe and evaluate a random permutation test of measurement invariance with ordered-categorical data. To calculate a p-value for the observed (?)χ², an empirical reference distribution is built by repeatedly shuffling the grouping variable, then saving the χ² from a configural model, or the ?χ² between configural and scalar-invariance models, fitted to each permuted dataset. The current gold standard in this context is a robust mean- and variance-adjusted ?χ² test proposed by Satorra (2000), which yields inflated Type I errors, particularly when thresholds are asymmetric, unless samples sizes are quite large (Bandalos, 2014; Sass et al., 2014). In a Monte Carlo simulation, we compare permutation to three implementations of Satorra’s robust χ² across a variety of conditions evaluating configural and scalar invariance. Results suggest permutation can better control Type I error rates while providing comparable power under conditions that the standard robust test yields inflated errors.  相似文献