现代教育技术条件下对数学证明的一些新认识

多媒体教学技术和网络技术是现代教育技术的重要特征.技术环境为进行解释性的证明提供了条件,由技术所带来的某些效果可拓展问题解决的思路并为证明提供方向.数学教学中,不仅要把计算机当作一种现代化的教具,更重要的是把它当作一种媒介;应加强学生认识证明的必要性并进行相关的训练,正确处理好生动形象与演绎推理的关系.     

数学学习困难儿童的多媒体教学策略

如何对数学学习困难儿童进行有效干预是很多教育工作者关心的问题。已有研究表明,工作记忆的缺陷是数学学习困难的根本原因。而基于认知负荷理论的教学设计正是针对人的工作记忆容量有限这一特点,利用多媒体来促进意义学习的完成。文章试图以工作记忆为桥梁,结合认知负荷理论,提出几条针对数学学习困难儿童的多媒体教学的干预措施,并指出了将来的研究方向。     

中长跑、马拉松运动员训练过程实时监控指导系统的开发与研究

针对中长跑、马拉松训练中教练员难以实时地掌握运动员自身的信息和背景情况,双方之间无法进行及时信息交流等突出问题。利用卫星定位系统等现代高新信息技术,结合中长跑运动特点,研制开发了能够在中长跑、马拉松等项目训练中实时进行监督和及时指导训练的辅助信息系统。经过实验表明,此辅助信息系统应用在中长跑、马拉松训练中对运动成绩提高有明显帮助,使训练的实时指导得以实现,为科学化训练提供了有效手段。     

网络教学软件设计中的技术优化

本文讨论了多媒体网络教学软件设计的技术路线,提出了具体的实施方案。由于制作矢量动画和设计交互的工具Flash在网络教学软件设计中占有重要地位,本文还结合实际对优化使用Flash做了讨论。     

Load reduction instruction: Exploring a framework that assesses explicit instruction through to independent learning

Load reduction instruction (LRI) is an instructional approach aimed at managing the cognitive burden on students in the initial stages of learning; then, as fluency and automaticity develop, students are encouraged to engage in guided independent learning. LRI comprises five factors: difficulty reduction, support and scaffolding, practice, feedback, and guided independence. This study examined an instrument (the Load Reduction Instruction Scale, LRIS) aimed at assessing these five factors. Among a sample of high school students from 40 classrooms, findings supported the validity of the LRIS, the conceptualising underpinning it, and its potential to guide instructional practice.     

内隐学习理论的研究进展及其对体育教学的启示

内隐学习和外显学习是人类学习的两种方式或两种类型,它们平行发生、相对独立,组成一个共生系统.在体育教学领域,运动技能的学习在情境多变、紧张应激、事物结构高度复杂、关键信息不明等条件下以及在技能的保持时间上,内隐学习比外显学习更具优势.内隐学习的研究及其理论提示我们,体育教学必须高度重视并充分开发利用学生的内隐学习潜能.     

A combined approach to strengthen children’s scientific thinking: direct instruction on scientific reasoning and training of teacher’s verbal support

Inquiry-based lessons have been demonstrated to improve children’s scientific thinking (i.e. reasoning abilities and domain-specific knowledge). Although empirical evidence shows that inquiry-based learning requires instruction, research comes from two approaches that have not been bridged yet: direct instruction of scientific reasoning and teacher training of verbal support. We investigated how these two types of instruction separately or combined strengthened children’s scientific thinking by comparing four conditions: baseline, direct instruction, verbal support, and a combined approach. Effectiveness of an inquiry-based lesson series on scientific reasoning abilities, vocabulary, and domain-specific knowledge (near and far transfer) were studied among 301 fourth graders. Results showed that both approaches strengthened different components of scientific reasoning abilities, and that a combination of instructions was most effective for scientific reasoning abilities, vocabulary, and domain-specific knowledge. Domain-specific knowledge acquisition was strengthened only when both instructions were provided. It can thus be concluded that each type of instruction has unique contributions to children’s science learning and that these instructions complement each other. Our study thus showed that inquiry-based lesson series when preceded by direct instruction of scientific reasoning and scaffolded with verbal support are most effective.     

Teaching Young Children Science: Three Key Points

Many early childhood teachers report lacking confidence to teach science. Today, science education is defined as “doing science”, as opposed to memorization of facts (Seefeldt & Galper, 2002). This paper discusses developmentally appropriate practices in the context of teaching science. Knowledge of child development, individual differences and the role of children’s socio-cultural context are explicitly discussed. The use of questioning and the 5 Es (engaging, exploring, explaining, elaborating, evaluating) instructional model are also discussed. A sample science lesson is provided to model the use of 5 Es and questioning strategies.     

Launching the Virtual Academic Center: Issues and Challenges in Innovation

In October 2010, the University of Southern California School of Social Work entered the online education environment with the launch of the first national web-based MSW program. After an initial enrollment of 80 students, in just 3 years this state-of-the-art MSW, offered in a technology-advanced synchronous and asynchronous format, has generated an enrollment of 2,000 students residing in 38 states. The development and rapid growth of the Virtual Academic Center has not been without significant challenges, the most substantial of which has been the creation of a national field education program. This paper describes the MSW courses taught in the online environment, and pedagogical hurdles faced in order to maintain the educational quality that is the hallmark of the School's campus-based MSW program.     

论大学英语教学中的文化导入

中西文化差异是影响学生领会、掌握和运用外语的重要因素.不同的民族有着不同的社会文化背景,学习一种外语必须了解这种语言所承载的文化.通过语言与文化关系的探讨,论述了外语教学中文化导入的重要性,提出了教学中文化导入的内容和方法.