Professional knowledge or motivation? Investigating the role of teachers’ expertise on the quality of technology-enhanced lesson plans

In an expertise study with 94 mathematics teachers varying in their relative teacher expertise (i.e., student teachers, trainee teachers, in-service teachers), we examined effects of teachers' professional knowledge and motivational beliefs on their ability to integrate technology within a lesson plan scenario. Therefore, we assessed teachers' professional knowledge (i.e., content knowledge, pedagogical content knowledge, technological knowledge), and their motivational beliefs (i.e., self-efficacy, utility-value). Furthermore, teachers were asked to develop a lesson plan for introducing the Pythagorean theorem to secondary students. Lesson plans by advanced teachers (i.e., trainee teachers, in-service teachers) comprised higher levels of instructional quality and technology exploitation than the ones of novice teachers (i.e., pre-service teachers). The effect of expertise was mediated by teachers' perceived utility-value of educational technology, but not by their professional knowledge. These findings suggest that teachers’ motivational beliefs play a crucial role for effectively applying technology in mathematics instruction.     

科学解释在知识创新中的作用

科学解释是科学家用科学规律来消解自然之谜的知识创新活动，它在知识创新中的作用表现在：第一，科学解释具有预测未知现象的存在中未来事态发展趋势的功能；第二，它在建构新颖理论体系的过程中起着特别重要的作用。     

大学英语教学应重视交互式教学模式

交互式教学模式是教学中经常使用的一种方法。这种教学模式有利于调动学生学习语言的积极性、主动性和创造性 ,提高学生的语言表达能力。国外采用自主和交互式教学模式培养学生的一些成功事例 ,为我国外语教学在培养外语人才提供了有益的启示。     

国内数字图书馆建设的反思

在调查咨询的基础上,总结目前我国数字图书馆发展中存在的问题,探讨问题产生的原因并提出解决办法。     

面向知识管理的高校图书馆

章主要引入了知识管理概念、目的、内容，分析知识管理的动态发展，探讨知识管理与高校图书馆业务之向的联系，阐述高校图书馆实施知识管理的措施。     

物理模型与股票投资

股票投资的方法很多，建立物理模型进行投资是一种简明有效的方法，使用金字塔模型和平衡理论对股票进行操作，能把握最佳投资机会。     

异化理论与媒介批判

本文从马克思的“异化理论”与卢卡奇的“物化理论”出发 ,对媒介批判的内容与目的进行了反思 ,提出媒介批判的内容应涉及“媒介产品的异化”、“媒介活动本身的异化”、“媒介组织与媒介从业者的异化”、“媒介组织与其他参照物之间的异化”等诸多层面 ,媒介批判的目的就是从当今社会媒介的异化现象出发 ,找寻媒介“扬弃异化”的方法与途径 ,在批判与超越中使人们逐渐摆脱被自己创造物“奴役”的状况 ,从而实现社会个体与社会整体的自由发展与全面进步。     

竞争情报与知识管理关系浅析

在分析竞争情报、知识管理的共性和相异性的基础上,论述两者之间的交叉、互融关系,并提出建立一种两者之间的良性互动机制提升企业的竞争力。     

The impact of digital technology on archival science

Archival science is to be regarded as a system. The properties of that system can be investigated and integrated. The methodology to do so has been tested in two research projects which are presented in this article as examples of the way in which the view of archival science as a system supports the development of new knowledge and as a demonstration of the stability of archival theory. This article presupposes that the archival discipline is also a “science”. Many have argued against the idea on the basis of a common perception that a science is a type of study entirely objective by virtue of the rigorous manner in which it is carried out and the restricted range of topics to which it applies. In fact, the activity of science is based upon a complex framework of assumptions that make it possible for the landscape of the scientific endeavour to be redrawn over time, and, while striving towards objectivity, considers it to be an unattainable ideal.