Family socioeconomic status,parental expectations,and adolescents’ academic achievements: a case of China

This study examines direct and indirect effects of family socioeconomic status (SES) and parental expectations on adolescents’ mathematics and problem-solving achievement in mainland China. SES here is composed of family wealth, home educational resources, and parental education. Over 5,000 ninth-grade students in 5 geographical districts of China participated in the study and were assessed by using the items adapted from the Programme for International Student Assessment (PISA). Results from structural equation modelling indicated that 2 components of SES – home educational resources and parental education – positively predicted parental expectations; however, the 3rd component – family wealth – negatively predicted parental expectations. Family wealth, parental education, and parental expectations significantly predicted mathematics achievement, and home educational resources, parental education, and parental expectations significantly predicted problem-solving achievement. The 3 components of SES also had significant indirect effects on both mathematics and problem-solving achievement through parental expectations, and the effect of family wealth was a suppression effect. These results were further discussed from Chinese cultural contexts.     

基于支持4字节编码汉字的数字化及全文检索发布系统

全文数字化是信息资源建设的方向,研究型资源的全文化检索尤其重要.计算器现有系统能处理的汉字,对于中文古籍、辞书、人名地名系统、报刊出版远不够用.几年前,国际标准ISO/IEC 106462003(即Unicode 4.0)编码汉字字符集已经拥有7万余汉字,但其中有4万2千多个汉字是4字节编码,在应用领域的处理方面有一定难度.文章介绍中易公司处理4字节编码汉字的技术成果,并结合在古籍数字化项目中的实际应用,着重说明用自行开发的7万汉字的应用系统,支持数字化工程和全文检索发布的技术特点,强调超大字符集、XML开放数据等标准技术的应用等.通过实践,总结出一套基于支持超大字符集4字节编码汉字的数字化的应用技术,以及信息全文检索发布的可行方法,解决了古籍和文献的数字化工程中的技术难点.     

Supplemental instruction in introductory biology I: enhancing the performance and retention of underrepresented minority students

Supplemental instruction classes have been shown in many studies to enhance performance in the supported courses and even to improve graduation rates. Generally, there has been little evidence of a differential impact on students from different ethnic/racial backgrounds. At San Francisco State University, however, supplemental instruction in the Introductory Biology I class is associated with even more dramatic gains among students from underrepresented minority populations than the gains found among their peers. These gains do not seem to be the product of better students availing themselves of supplemental instruction or other outside factors. The Introductory Biology I class consists of a team-taught lecture component, taught in a large lecture classroom, and a laboratory component where students participate in smaller lab sections. Students are expected to master an understanding of basic concepts, content, and vocabulary in biology as well as gain laboratory investigation skills and experience applying scientific methodology. In this context, supplemental instruction classes are cooperative learning environments where students participate in learning activities that complement the course material, focusing on student misconceptions and difficulties, construction of a scaffolded knowledge base, applications involving problem solving, and articulation of constructs with peers.     

分析化学省级精品课程建设模式探索

通过介绍分析化学课程的改革发展与具体实践,探讨了分析化学省级精品课程的建设模式,提出了分析化学省级精品课程的定位和目标,从课程的教学重点和难点中找出好的解决办法,同时提出了加强实践教学的设计思想,通过改进组织形式和指导方法,发展新的分析化学实验考核内容、实验成绩和综合训练考评方法,提高了教学效果和管理质量,使学生达到综合运用基本知识和发展实验技能的目的.     

军队营养与食品卫生学本科实习培养模式初探

军队营养与食品卫生学是一门应用性很强的学科,传统的实习培养模式虽然能使学员全面熟悉教研室的日常工作,但对实习学员的综合应用能力培养不够,难以满足我军对军事预防医学复合型人才的需求。本教研室近年来尝试开展了实习培养模式改革,包括建立实习学员导师制、制定学科综合实习计划及制定实习学员课题制,使实习学员综合应用能力和独立工作能力得到显著提高,学员普遍反馈良好。     

Calculated democracy—Explorations in gerrymandering

This paper describes a lesson centered around a metric for measuring partisan gerrymandering: the efficiency gap. We situate the efficiency gap in the current US political climate, describe the activity itself, and then provide recommendations for readers interested in adapting the lesson for their own classrooms.     

反思性教学是英语教师专业发展的有效途径

反思性教学是教师以自己的教学活动为思考对象,对自己的教学行为和结果进行反省思考,发现问题并寻找解决问题的方法和途径的过程,它是教师提高专业能力的有效途径。依据反思性教学理论,从反思性教学内容、活动过程及基本方法三个方面对反思性教学做进一步的诠释,旨在促进英语教师专业发展。     

廉政文化独特功能——从反腐倡廉影视作品视角分析

反腐倡廉影视作品以其独特的优势和强烈的时代特点,正成为廉政文化建设不可或缺的新力量;其独特的艺术表现形式影响着人们的政治和社会生活,对党的廉政文化建设实践起到了很好的补充作用。从反腐倡廉影视作品的角度对我党的廉政文化的研究是崭新的尝试,具有鲜明的中国特色。     

现代篮球攻击性防守特征探析

现代篮球运动正在朝着高速度,高强度,激烈对抗,守中带攻的方向发展。对抗的焦点被充分体现在防守中,最终目的就为取得有效进攻。近几年,国内外对＂攻击性＂防守研究很多,也获得很不少成果,本文采用文献资料法;理论分析法;观察法,对攻击性防守的形成、发展、特征进行系统的分析。目前,世界篮坛强国都带有明显的攻击性防守特征,本文通过对攻击性防守的研究,找出攻击性防守的特征。     

新疆少数民族地区普通高中课改实施中英语教师适应状况调查及专业能力提高对策研究

文章对2009年新疆少数民族地区普通高中教师的适应状况进行了调研,对新疆普通高中英语教师在课改实施中遇到的问题进行统计分析,并提出应对方案.