以材料为载体培养幼儿的探究力

幼儿生来具有探究的本能,教师应善于选择和提供适合儿童年龄特征的材料,激发幼儿的探究兴趣,并引导幼儿通过自由探索、交流讨论与定向探究实现探究的目的,在鼓励幼儿迁移探究经验中帮助幼儿保持探究的兴趣,形成稳定的探究能力。     

利用"光合作用发现史"培养学生探究能力

本文结合光合作用发现史的教学实践，从创设持续的问题情境、体验探究过程与方法、研究知识的深入发展、尝试部分探究和全程探究几个方面探讨了利用生物科学史培养学生探究能力的基本方法和基本模式，即“创设情境-体验过程-模拟探究-部分探究-全程探究”。通过教学实验研究，从探究活动主要步骤的完成人数和Chi—Square Test的统计结果可知，依照该模式和方法可以有效地培养学生多方面的探究能力。     

Investigation of differential movement at railroad bridge approaches through geotechnical instrumentation

Railway transitions experience differential movements due to differences in track system stiffness, track damping characteristics, foundation type, ballast settlement from fouling and/or degradation, as well as fill and subgrade settlement. This differential movement is especially problematic for high speed rail infrastructure as the ??bump?? at the transition is accentuated at high speeds. Identification of different factors contributing towards this differential movement, as well as development of design and maintenance strategies to mitigate the problem is imperative for the safe and economical operation of both freight and passenger rail networks. This paper presents the research framework and initial instrumentation details from an ongoing research effort at the University of Illinois at Urbana-Champaign. Three bridge approaches experiencing recurrent geometry problems were instrumented using multidepth deflectometers (MDDs) and strain gages to identify different factors contributing to the development of differential movements.     

Automatic attention cueing through eye movement in 2-year-old children with autism

Automatic attention cueing by perceived changes in gaze direction was studied in 2-year-old children with autism and typically developing (TD) controls using a visual attention cueing paradigm. In Experiments 1 and 2 the cue consisted of an eye movement (Eyes) and a nonbiological movement (SimEyes), respectively. The results suggest that visual attention in children with autism and their TD counterparts is cued by perceived eye movement. Thus, although in naturalistic situations toddlers with autism do not follow the gaze of others, they are sensitive to directional cues inherent in eye movement. Cue-specific differences in performance related to the level of engagement and cue-processing time may suggest reliance on different underlying strategies for gaze processing in autism.     

Lifelong learning through the SkillsFuture movement in Singapore: challenges and prospects

This article examines the promotion of lifelong learning (LLL) in Singapore through a new national initiative known as the SkillsFuture movement. It is argued that the attainment of LLL is confronted with three key challenges, the first being the sociocultural preference for academic rather than vocational education in Singapore. Secondly, there is an absence of a strong local culture that underscores the habits of mind needed for LLL. The final challenge is the dominant ideology of pragmatism that potentially conflicts with the goal of the SkillsFuture movement for individuals to enjoy learning and pursue their passion. The article further recommends a reconceptualisation of the notion of LLL in Singapore by supplementing the skills growth model with the individual development and social learning models. The Singapore example illustrates the difficulties and prospects of advocating LLL due to historical and socialcultural conditions and practices.     

爱的探索

You hold a hybrid rose in your hand,then place it into mine.With love you kiss my languid lips,caress my sun-glistened cheek,then murmur,“This rose is special,the last of summer.”     

Discovery of potential biomarkers for human atherosclerotic abdominal aortic aneurysm through untargeted metabolomics and transcriptomics

Journal of Zhejiang University-SCIENCE B - Abdominal aortic aneurysm (AAA) and atherosclerosis (AS) have considerable similarities in clinical risk factors and molecular pathogenesis. The aim of...     

重构发现学习

布鲁纳的发现学习在教育界影响深远．重构发现学习是时代对于这一学习理论的崭新诠释。发现学习是不断超越固定结构的建构学习，是学习者亲历真实情境的研究性学习。是注重发展学生主体性的自主学习．在教学中有着广阔的应用空间。     

Learning by Discovery

This paper illustrates how expected mean squares needed in the analysis of variance can be arrived at via the use of only one rule: the E(MS) for any source of variation for any ANOVA model is the specified effect (main effect or interaction) plus the specified effect in combination with any random effect (including combinations of random effects). Once the procedure has been mastered, it can be quickly applied to ANOVA designs of any complexity.     

发现与寻找--现代哲学文化中的生命本体论

现代哲学和人科学关注人的生命存在。力求消除现实中的人的非人化。异化，在生命哲学的视域中，以艺术承担拯救生命的重任，使生命得以自由地展开。     

Web Services的服务发现技术

服务发现技术是Web Services中的一个关键技术,本文阐述了服务发现的涵义和目前使用的UDDI和WS-Inspection两种服务发现技术并分析了它们的关系,在此基础上探讨了现在服务发现技术存在的问题。     

Joy of movement

Movement is as natural and essential to young children's lives as loving care, rest, and nutrition. Movement provides children with an outlet for expression, creativity, and discovery. Through movement, children learn about themselves, their environment, and others. Movement is a stimulus for physical growth and development. The joy of movement is a child's expression of an emotional need fulfilled. Sandra Curtis is a consultant in Science Education at the University of California in Berkeley. This article is excerpted, with permission, from The Joy of Movement in Early Childhood, ©1982 by Teachers College Press, New York.     

"抛物线的焦点弦性质"教学中的新发现

众所周知,设直线l与抛物线y2=2px(p>0)相交于A(x1,y1)、B(x2,y2)两点,若l经过抛物线的焦点F,则y1·y2=-p2,反之也成立.那么,若y1·y2=p2,直线l也经过某一定点吗?著名的数学教育权威弗赖登塔尔认为,数学教学方法的核心是学生的“再创造”.在具体实施过程中必须努力激发学生“再创造”的动机,必须以学生的“数学现实”为基础,必须重视合情推理的作用.基于这一教学理念,在2004年安徽省六安市高中数学研讨课的一节公开课“抛物线y2=2px(p>0)的焦点弦性质”的教学中,通过师生互动,发现了一个新的结论.为说明问题,先将本节课的主要教学环节简介…