重金属污染土壤的化学治理和修复

综合国内外研究现状,简要介绍了各种治理和修复重金属污染土壤的化学方法。     

教学投影机的选购和使用

介绍了教学投影机的选购原则和使用注意事项。     

我国南海海洋天然产物生理活性的研究进展

报导从我国南海海域采集、提取到的珊瑚、海绵、海蛾等生理活性物质三丙酮胺、喹啉酮、柳珊瑚酸、内酯二萜、环二肽、四羟基甾醇、神经酰胺等新化合物的药理作用最新进展,以及其发展成为新海洋药物的前景.     

新时期我国中学教育改革及教师队伍建设

以素质教育为核心的教育体制改革,是我国中学教育改革的战略重点。但在从传统的应试教育向素质教育转变的过程中,我们的教师队伍却面临着极大的挑战。如何正视教师队伍中存在的问题,建设一支适应新时代要求的、高素质的教师队伍,是实现这一改革的关键环节。本文从素质教育对教师队伍的要求、我国中学教学教师队伍存在的问题以及解决这些问题的思路三个方面阐述了笔者对这一问题的思考。     

学校网络德育的研究与实践初探

对学校网络环境下的德育教育的意义、方式方法从理论和实践两方面进行了探究．提出了加强网络德育工作的许多积极的意见和建议。     

语文网络教学案例分析和启示

通过语文教学中运用网络的案例分析，证明了网络教学是有利于激发学生学习兴趣，有利于分层教学的实施，有利于构建平等的师生关系和高效轻负的教学模式。     

数据检索中索引技术的探讨

设计索引的目的是为了加快数据检索．文章就与索引相关的一些特征元素．提出了创建索引中数据目录项的3种不同方法．同时对B^ 索引进行了描述．分析了其在进行数据搜索的实现原理．简要个绍了在实现数据删除和插入时的优化思路．     

构建新型农民职业教育培训体系全面推动农村小康社会建设

构建新型农民职业教育体系,是全面推动农村小康社会建设的必要条件.分析了我国农民职业教育体系的现状,并从这一现状出发,阐述新型农民职业教育培训体系的概念与内涵,提出构建这一体系的基本原则、体系框架、建设重点及主要模式.     

高中生文言文自学能力培养

言学习是中学语教学的重要组成部分。为了培养学生言自学能力,应重视朗读,培养语感;探求规律,积累知识;指点方法,训练能力;研读课,引导思维;拓展阅读,促进迁移。     

Relations of Children's Effortful Control and Teacher-Child Relationship Quality to School Attitudes in a Low-Income Sample

RESEARCH FINDINGS: The purpose of this study was to examine the relations of children's effortful control and quality of relationships with teachers to school attitudes longitudinally in an ethnically diverse and economically disadvantaged sample. Data were collected as part of a larger intervention project during mid-fall, winter, and late spring (ns = 823, 722, and 758, respectively) for 2 cohorts of 3- to 5-year-olds (collected during 2 different school years). Children's effortful control was assessed in the fall with parents' and teachers' reports and 2 behavioral measures. Teacher-child relationship quality was assessed mid-year with teachers' reports of closeness and conflict. Attitudes toward school were assessed in late spring using teachers' and students' reports of school avoidance and liking. Effortful control, in general, was positively correlated with teacher-child closeness and school liking and negatively correlated with conflict and school avoidance. Using structural equation modeling and controlling for sex and ethnicity, we found that effortful control was positively related to teacher-child relationship quality, which in turn was positively related to school attitudes. Furthermore, the relation of effortful control to school attitudes was mediated by teacher-child relationship quality. PRACTICE OR POLICY: Results provide evidence for the importance of relational processes that take place within the classroom context and have implications for teachers and clinicians working to increase school success in ethnic minority and low-income children.