幼儿园集体教学中教师提问的现状及其改进

本研究对观察记录的26个集体教学活动中来自教师的1453个提问进行分析,发现当前集体教学中,教师的提问多限于低水平的认知类问题,其主要目的是传授知识和技能;教师的提问通常不能面向全体幼儿,有20%左右的幼儿从来未被教师提问,教师更倾向对能力较强、性格活泼的幼儿提问;在提出问题后,教师虽有等候意识,但实际给予幼儿思考的时间都十分短暂,通常在1秒左右;幼儿的回答方式以个别作答、集体齐答、自由回答为主,而少有讨论后汇报的方式;当幼儿回答正确时,教师会表层化地追问,而当幼儿回答不正确、不完整或未回答时,教师多采用重述、简单否定、自己代答等方式;教师提问的有效性普遍不高,要么不能引导幼儿思维,要么不能抓住关键问题,要么与幼儿经验不符。为改变这种低效或无效的提问现状,教师需要根据教学内容、幼儿已有经验水平、幼儿发展的兴趣与需要精心设计提问,全面考虑问题的类型与难度、给予幼儿思考的时间、允许幼儿回答的方式以及教师自己的应答方式,使提问真正发挥促进幼儿思维与发展的作用,提高整个教学活动设计与实施的水平。     

幼儿园教师参与科研的现状及其对自身专业与园所发展的作用

本研究运用质的研究方法,对陕西省13位公办幼儿园园长进行半结构式访谈,力图描述现阶段幼儿园教师参与科学研究的现状,并探求幼儿教师参与科研对教师素质提升及园所发展的重要性.研究结果表明:教师参与科研比例较低;教师参与科研对教师专业修养、知识技能等方面的发展具有促进作用;教师参与科研通过提升教师素质有利于促进幼儿园的长远发展.     

埃里克森人格发展理论与儿童健康人格的培养

埃里克森人格发展理论将人一生的发展分为八个阶段,其中前三个阶段与学前儿童相关.这三个阶段分别是基本信任对不信任的阶段、自主对害羞和怀疑的阶段、主动对内疚的阶段.这些阶段依次出现的顺序是由遗传决定的,但个体能否顺利度过每个阶段,形成相应的良好品质则是由环境决定的,其中家庭、学校、社会都会对个体人格的健康发展产生深远影响.为帮助学前儿童顺利度过人生的前三个阶段,形成良好的基本人格特征,成人应重视早期和谐亲密的亲子关系的建立,在尊重孩子、为孩子提供独立做事机会、鼓励孩子与他人交往、让孩子体验成功中培养其自信、独立的心理品质,通过创设适宜的家庭环境和家园共育,让孩子在游戏中发展创新精神与能力.     

FARMER: A novel approach to file access correlation mining and evaluation reference model

File semantic has proven effective in optimizing large scale distributed file system. As a consequence of the elaborate and rich I/O interfaces between upper layer applications and file systems, file system can provide useful and insightful information about semantic. Hence, file semantic mining has become an increasingly important practice in both engineering and research community. Unfortunately, it is a challenge to exploit file semantic knowledge because a variety of factors could affect this information exploration process. Even worse, the challenges are exacerbated due to the intricate interdependency between these factors, and make it difficult to fully exploit the potentially important correlation among various semantic knowledges. This article proposes a file access correlation miming and evaluation reference (FARMER) model, where file is treated as a multivariate vector space, and each item within the vector corresponds a separate factor of the given file. The selection of factor depends on the application, examples of factors are file path, creator and executing program. If one particular factor occurs in both files, its value is non-zero. It is clear that the extent of inter-file relationships can be measured based on the likeness of their factor values in the semantic vectors. Benefit from this model, FARMER represents files as structured vectors of identifiers, and basic vector operations can be leveraged to quantify file correlation between two file vectors. FARMER model leverages linear regression model to estimate the strength of the relationship between file correlation and a set of influencing factors so that the “bad knowledge” can be filtered out. To demonstrate the ability of new FARMER model, FARMER is incorporated into a real large-scale object-based storage system as a case study to dynamically infer file correlations. In addition FARMER-enabled optimize service for metadata prefetching algorithm and object data layout algorithm is implemented. Experimental results show that is FARMER-enabled prefetching algorithm is shown to reduce the metadata operations latency by approximately 30%–40% when compared to a state-of-the-art metadata prefetching algorithm and a commonly used replacement policy.     

Searching high gray scale FPD scanning matrix based on PSO

With the increase of gray scale and flat panel display (FPD) size, subspace bitwise scanning strategy can be replaced traditional scanning method to cut down frame frequency. However, the direct searching strategy (DSS) becomes unfeasible to obtain corresponding high gray scale scanning matrix. Thus, particle swarm optimization (PSO) is introduced to accelerate searching for high gray scale weights scanning matrix (WSM) with its parallelism and global optimization feature. Finally a WSM of 256 gray scales is found out successfully with Matlab, which both gray linearity and scanning efficiency are satisfied.     

小学班主任阅读状况的调查研究

以上海市八个区县22所小学522名小学班主任为对象,调查了书籍阅读、杂志阅读、报纸阅读、网络阅读的状况.结果发现,小学班主任的阅读有一定数量和丰富性,但还需进一步提升,尤其需加强专业性导向.     

关于基础教育国际化的几个问题

教育国际化成为当前理论和实践热点话题,不同于高等教育国际化的是,基础教育的国际化特别需要讨论和澄清一些基本问题,如基础教育是否必须国际化,基础教育国际化与民族化的关系,基础教育与国际接轨问题,国际化人才培养与基础教育关系问题等.     

在课程内外联动中夯实学前教育专业学生的基本功

专业基本功是学前教育教师素质的重要方面,学前教育师资培养机构首先应根据学前教育专业特点确定学前教育师资应当具备的基本功项目及其包含的基本能力,然后依此设计和编制相应的课程模块与体系,并为这些课程确定人人都能过关的基本目标,和能充分发挥学生潜力与兴趣、发展其专业个性的提升目标.为了培养学生扎实的基本功,除了通过加强主干课程的实践性与提高其实施质量确保学生获得这些基本能力外,还应通过相关课程和社团活动为学生提供进一步练习与运用这些基本功的机会,通过组织与课程进程相匹配的竞赛活动为学生提供展示这些基本功的平台,以促进学生对基本功的熟练掌握与灵活运用,最终形成基础厚实、内容充实的教育基本能力,提高其将来对岗位要求的适应力.     

未成年人贫困对个体健康、能力与就业的影响

未成年时期的贫困会影响个体的先天素质、营养摄取、生活环境及所能获得的医疗资源,不利于贫困个体的健康成长,会对其智力发育和受教育情况产生消极影响,并经由人力资本积累最终作用于个体成年后的身体健康、能力获得与劳动就业,使其在就业和生活中均处于弱势.国家与政府应加强未成年人贫困问题的研究,积极倡导社会抚养的理念,通过制定和实施完善的政策体系保障贫困未成年人的健康成长与发展.     

溴化（E）-1,1′-（六烷-1,6-二甲氨基）二（4-（E）-2-（噻吩基）乙烯基吡啶的合成、表征及光电性质的研究

合成和表征了一个新的吡啶衍生物溴化（E）-1,1′-（六烷-1,6-二甲氨基）二（4-（E）-2-（噻吩基）乙烯基吡啶,这是一种自组装膜合成的中间配体,具有特殊的结构特征和氧化还原性,以其为配体继续合成自组装膜材料,在共价和静电自组装膜研究的领域有很高的研究价值,本文对它的合成、表征及其紫外可见光谱和荧光光谱等的性质作一研究。