共查询到20条相似文献，搜索用时 15 毫秒
1.
Nancy Chitera 《美中教育评论》2014,(12):861-872
The purpose of this article is to develop a framework that can be used to describe and explain how mathematics teachers construct a multilingual classroom and the discourse practices being produced in a mathematics classroom. It conceptualizes the discourse practices used by mathematics teacher educators as they prepare student teachers to teach mathematics. The framework developed here is shaped by Critical Discourse Analysis （CDA） drawn from Fairclough. This provides the theoretical and conceptual tools to examine the discourse practices of mathematics teacher educators and how the）＇ make available these discourse practices for student teachers to draw on. In broad terms, this article examines the discourse practices of the mathematics teacher educators and how they support the student teachers develop discourse practices relevant for teaching and learning school mathematics in multilingual classrooms. This article is broken down into several sections. The first section discusses what it means for student teachers to develop discourse practices for mathematics teaching. The second section provides an introduction to CDA, followed by its origins, key terms, and elements of Fairclough＇s CDA. Thereafter, the author outlines the strategies involved in doing CDA. The last section discusses why CDA is relevant to the mathematics classroom. 相似文献
2.
In the process of classroom education, setting questions in class is an important teaching method, which is used in the whole teaching activity and acts as the link between the thoughts of teachers and students. Hence, creating a wisdom class and using according questions to aid the class are of great significance to both students and teachers. In this paper, 40 elementary students from the 9th grade and 10 of their teachers were studied and the result showed that learning requirements facing to the whole class and students＇ learning beliefs are essential principles, and questions should be set by having an exhaustive understanding of the textbook, giving previous homework, creating a thinking atmosphere, and setting a proper difficulty for the students. The proper time to set questions is when the old knowledge and new knowledge of the student conflict in the awareness of the student, when the teacher wants to spread thought, and when the teacher wants to make a conclusion. 相似文献
3.
Alan Brown 《美中教育评论》2008,5(1):9-17
National （and European） qualifications frameworks, the specification of learning outcomes and grand targets like the Lisbon goals of increasing the supply of graduates in Europe in order to achieve a more knowledge-based society are all predicated upon the idea of moving people through to higher and well-defmed levels of skills, knowledge and understanding. However, the work of researchers, from the UK＇s Teaching and Learning Research Programme （TLRP）, examining work-related learning from a number of perspectives, would suggest that the way to move towards a more knowledge-based society is for as many people as possible, whatever their supposed highest overall ＂level＂ of skills is, to believe that they should develop their skills, knowledge and competence in a number of ways unrelated to their current highest ＂level＂. This means rather than having an essentially binary conception of competence at the heart of the levels, it would be far more beneficial in inducing the frame of mind required of a knowledge-based society to have a developmental view of expertise. Such an approach can address three particular challenges that a ＂levels＂ approach f＇mds difficult to accommodate. First, there is the issue of transfer-there would be an expectation that graduates would be some way from ＂experienced worker standard＂ when they completed their initial training. Secondly, such an approach could provide the conditions in which a commitment to continuous improvement at work could flourish, as most people would believe that they needed to develop in a number of ways （at a range of ＂levels＂） in order to improve their performance. Thirdly, this approach of continuing to expect people to continue to develop a range of skills would offer some protection against the development of ＂skilled incompetence＂ （where organisations and individuals continue to focus upon what they do well without paying due regard to the future）. 相似文献
4.
Oyelami Olufemi Moses 《美中教育评论》2008,5(11):22-27
More recent motivational research focuses on the identification of effective techniques for enhancing instructional design and meeting the needs of diverse student populations （Wlodkowski R. J., 1981）. Learning-motivation researchers are applying some of the same theories and concepts found to be effective in industry to the development of motivational models that enhance the teaching-learning environment. One of such models is the Attention Relevance Confidence Satisfaction （ARCS） model of motivational design developed by John M. Keller （Small Ruth V., 2007）. The continuous improvement in handheld devices technologies has led to a new learning paradigm called mobile learning which involves the delivery of learning contents to learners utilizing mobile computing devices. Handheld devices, however, have constraints which limit their use for effective learning. Towards improving the effectiveness of mobile learning is a new mobile learning model proposed by Shih on which instructional designs for mobile learning can be based to facilitate mobile learning design and to achieve better mobile learning outcomes （Yushin E. Shih ＆ Dennis Mills, 2007）. Shih＇s model is based on Graphical User Interface （GUI）. This paper presents an enhanced Shih＇s model for effective mobile learning outcome in a university environment by making provision for instructional design to include online library search for both e-books and audio books using collaborative filtering algorithm to aid the search and posting and reading of testimonials about positive mobile learning outcomes so as to encourage other mobile learners. It also incorporates the use of Voice User Interface （VUI） to access the learning portal in order to overcome mobile devices interface limitations in addition to Graphical User Interface （GUI） proposed by Shih, so as to cater for the learning needs of the blind and the visually impaired. 相似文献
5.
Mun Fie Tsoi Ngoh Khang Goh 《美中教育评论》2008,5(7):29-35
The development of e-learning materials for teaching and learning often needs to be guided by appropriate educational theories or models. As such, this paper provides alternative e-learning design pedagogy, the TSOI Hybrid Learning Model as a pedagogic model for the design of e-learning cognitively in science and chemistry education. This model is hybridized from the Piagetian science learning cycle model and the Kolb＇s experiential learning cycle. The TSOI Hybrid Learning Model represents learning as a cyclical cognitive process of four phases： translating, sculpting, operationalizing and integrating. A major feature is to promote cognitive processing in the learner for active learning proceeding from inductive to deductive. Design specificity in science and chemistry education is illustrated in terms of instructional storyboarding for the developed research-based e-learning product. Learners＇ cognitive ability for example positive concept achievement will be addressed as part of the research data collected. 相似文献
6.
In this study, a simple roller burnishing tool was made to operate burnishing processes on A356/5%SIC metal matrix composite fabricated by electromagnetic stir casting under different parameters. The effects of burnishing speed, burnishing force and number of burnishing passes on the surface roughness and tribological properties were measured. Scanning electron microscopy （SEM） graphs of the machined surface with PCD （insert-10） tool and roller burnished surface with tungsten carbide （WC） roller were taken into consider- ation to observe the surface finish of metal matrix composites. The mechanical properties （tensile strength, hardness, duc- tility） of A356/5%SIC metal matrix composites were studied for both unburnished samples and burnished samples. The results revealed that the roller burnished samples of A356/ 5%SIC led to the improvement in tensile strength, hardness and ductility. In order to find out the effects of roller bur- nishing process parameters on the surface roughness of A356/ 5%SIC metal matrix composite, response surface methodol- ogy （RSM） （Box-Behnken design） was used and a prediction model was developed relevant to average surface roughness using experimental data. In the range of process parameters, the result shows that roller burnishing speed increases, and surface roughness decreases, but on the other hand roller burnishing force and number of passes increase, and surface roughness increases. Optimum values of burnishing speed （1.5 m/s）, burnishing force （50 N） and number of passes （2） during roller burnishing of A356/5%SIC metal matrix com- posite to minimize the surface roughness （predicted 1.232 μm） have been found out. There was only 5.03% error in the experimental and modeled results of surface roughness. 相似文献
7.
Laser welding is an established manufacturing technology for a large variety of automotive applications due to its attractive properties such as low heat input, high precision and fast welding speed. Especially when welding high strength steels, which are dominantly used in today＇s car body construction, the low heat input by laser welding bears significant advantages with regard to the properties of the weld seam. The exploitation of the full application potential of laser welding in mass production requires an appropriate manufacturing concept and corresponding auxiliary technologies. The present paper demonstrates the integration of laser welding into the surrounding manu- facturing concepts by a modular setup with different levels of automation. This approach offers flexible solutions for individual needs thereby optimizing investment cost, labor cost and productivity. Recently available laser sources enable exceptionally high welding speed on thin gauged sheet metals but require efficient material handling con- cepts to utilize the full speed potential. Industrial concepts are presented offering efficient material handling and high process robustness for mass production welding. 相似文献
8.
Ruben Jans Ria Bollen 《美中教育评论》2008,5(7):36-40
Employees in technical firms, like garages, need more and more formations. Due to the very fast innovation in technology, lifelong learning is a real need for these labour forces. On the other hand, there are the needed formations very specialized and expensive. Another problem employers faced in these economical sectors in Western Europe is the lack of candidates. Also in secondary education schools, the wide interest for these formations is decreasing. One of the factors causes this problem is that schools don＇t have enough money for investing in new and high-tech machines. Therefore two interreg projects were submitted and approved for financing. Interreg is an initiative of the European Union meant for the permanent development of the ＂European Space＂. The third phase of interreg means enhancing the economic and social cohesion within the European Union. In this paper, we describe two successful projects, namely Autoweb and V@K, which try to help employers, employees, schools and students to keep up with the high-tech innovations with a workplace-based e-learning program. 相似文献
9.
Darra Pace Diane Schwartz 《美中教育评论》2008,5(12):20-26
The inclusion of students with disabilities at the university is a relatively new occurrence in the field of special education. Although legislation in the United States has supported the acceptance of students with disabilities at the post-secondary level, it has only provided minimal support with the emphasis on the learner rather than the curriculum. Now we are looking for multiple ways for students to access learning and demonstrate mastery. Universal Design for Learning （UDL） is currently seen as a means to reconceptionalize curriculum. This study examines the experience of four professors and their effort to use a Classroom Performance System （CPS） as part of reformatting their courses using UDL. The Center for Applied Special Technology, CAST （2001） states that the goal of Universal Design for Learning is to develop teaching methods that enable all students with diverse learning needs, including those with disabilities and cultural differences, to have equal access to classroom curriculum. This paradigm shift echoes the move in special education from a deficit model to a minority rights model put forward by Hahn （1989）, and which is the basis of inclusive educational philosophy. Together inclusion and UDL create learning environments that strive to serve all students. This research describes the implementation of clickers as part of the CPS program in college courses in a special education teacher preparation program. The case study demonstrates how technology can provide access for all learners with positive outcomes such as increased participation and application of knowledge. It also illustrates some of the difficulties in making this pedagogical paradigm shift particularly in the use of technology, and the value of overcoming the existing barriers in place. 相似文献
10.
Dennis Ping-Cheng Wang 《美中教育评论》2008,5(9):32-41
Movement activities can be used to integrate with any other curriculum in childhood education. The movements can inspire the sense of rhythmic concepts for children. This study aims at investigating how children can be motivated and inspired rhythmically by body movement through Dalcroze approach. In this research, the author revealed how physical movements can motivate children＇s potential sense of rhythm and inspire children＇s interest of musical rhythmic concepts learning. The study was conducted with 1000 primary school 6th grade students from twenty primary schools in Taipei, Taiwan. These 1000 6th grade students have the same age, same music syllabus and have equally same music training at their schools. The 1000 students were divided into two equal groups, one having different activities of body movements at school, and the other without. The different activities included tapping, swinging, clapping, turning, and stamping simple rhythms. The experiments consisted two parts which were rhythm dictation and improvisational skills. All the participants were equally given the pre-test and post-test as evidences of progress of the experiment, and the researcher then compared with the differences of the two tests of the two groups before and after the experiment to see if there were any progress in their learning of musical rhythms. The study lasted 6 months and consisted of three stages： observation, comparison, and analysis. The author observed and compared the two groups of students, analyzed the results and found out that the two groups demonstrated obvious differences in their degree of progress on learning of musical rhythms. 相似文献
11.
Christian Harteis Tina Koc Barbara Morgenthaler 《美中教育评论》2008,5(1):68-80
Intuition usually is defined as the capability to act or decide appropriately without deliberately and consciously balancing alternatives, without following a certain rule or routine, and possibly without awareness （Gigerenzer, 2007; Hogarth, 2001; Klein, 2003; Myers, 2002）. It allows action which is quick （e.g. reaction to a challenging situation） and surprising, in the sense that it is extraordinary in performance level or shape. This paper reports theories of intuition and their empirical evidence in the field of professional work. It aims at reporting the state of research on intuition, discussing the relevance of different approaches for analyzing work performance, and describing challenges for future empirical research in the domain of professional working life. 相似文献
12.
YANG Xi-yao WU Yong-an 《美中教育评论》2008,5(9):50-54
The study was to investigate the vague words measurement across native and non-native English speakers and gender differences. Ninety-two students from the University of Oklahoma participated in this study by filling out an internet-based questionnaire on the vague words. The researchers put each of the thirty-two vague words in a context, or the same word put into different contexts. The participants were asked to rate the degree or the numerical value that they thought was the most appropriate in the context of the vague word. It was found that ten out of the thirty-two words had a significant difference across the native and non-native English speakers, and two of thirty-two words had a significant difference across genders. The word ＂fairly＂ showed the most significant difference interactions of language speaking by gender. 相似文献
13.
阮幼丽 《宁德师专学报(自然科学版)》2008,20(2):213-215
由于基础设施的限制,农村中学学生视野较窄,但他们所处的生活环境中生物资源丰富多彩．农村中学生物教学可利用得天独厚的自然资源,促进教学,激发学生的学习兴趣,引导学生更好地学习生物,认识生物资源与人们生活的密切关系,促进学生的资源保护意识,培养高尚的情操。 相似文献
14.
黄丹红 《宁德师专学报(自然科学版)》2007,19(2):200-202
就物理课堂中让学生在学习知识与技能的同时，体验知识产生过程的乐趣，掌握解决实际问题的本领，并把探究落实到课堂教学，让学生学会探究． 相似文献
15.
概念图在高中生物复习总结中应用的初探 总被引：1，自引：0，他引：1
陈敏 《宁德师专学报(自然科学版)》2008,20(1):92-94
高中生物复习课教学是师生双方从新的视角对所学知识进行系统梳理、深化、拓宽及灵活应用的教与学的过程．应用概念图可以有效地组织课程内容,激发学生自主构建生物学知识体系,使知识概括化、网络化,并能灵活地迁移． 相似文献
16.
The purpose of this study is to promote more open-ended inquiry activities in junior high school science lessons in the current educational system with fixed textbooks. Researchers adapted existing curriculum-based experimental activities for more open-ended inquiry ones. In addition, the whole class was provided with more opportunities to explore complete activities in limited teaching time. This study used Hazel＇s proposals of levels of inquiry. The method was to carry out the current 8th grade experiments through the step-by-step teaching material modification （from levels of inquiry 0 to 2b） and to combine the experimental teaching method with the 5E （engage, explore, explain, elaborate, and evaluate） learning cycle. After a quasi-experimental study, we compared the traditional teaching method with the step-by-step open-ended inquiry teaching one on 8th graders＇ basic and integrated science process skills and academic achievements. The study result showed that the academic achievement in the experimental group, based on the same instructional time, was not worse than that in the control group. No significant difference was found on the total scores of the basic science process skills between the two groups, but a significant difference was found on the ＂predicting＂ dimension. There was a significant difference on the total scores of the integrated science process skills between the two groups. Significant differences were found on ＂interpreting data＂ as well as ＂experiment designing＂ dimensions. Hence, the study indicated that it could enhance students＇ inquiry ability through step-by-step openly inquiry levels to change the existing curricula, which served as a reference of educational reform. 相似文献
17.
18.
A combined numerical model of thermal field and the primary dendrite arm spacing （PDAS） was proposed to correlate the process parameters and PDAS in laser welding of Cu and A1. The solidification parameters simulated by the finite volume method with commercial software ANASYS FLUENT were applied in the PDAS model to predict the dendrite arm spacing of fusion zone. Dendrite was also examined by the metallographic method to validate the model. Results indicate that the calculated PDAS agrees with metallographic measurements reasonably, especially the Hunt model. PDAS increases apparently with increasing laser power while decreases slightly with increasing welding speed. Increasing laser power increases the secondary dendrite and increasing welding speed increases the microporosity in dendrite. 相似文献
19.
当今,大学生利用假期来到教学资源相对贫乏的偏远山区进行支教已成为大学生回报社会的途径之一。在支教逐渐被大众广泛接受的社会背景之下,提升支教项目的系统性和专业性就成为了更多支教团队追求的目标。本文将以中国地质大学(北京)学生英语专业支教实践为实例,从团队建设、前期备课、宣传工作、教学实践四个方面分析支教规范性建设的新思路,为大学生支教项目的进一步发展提出更好的实施方案。 相似文献
20.
Anne Beate Reinertsen 《美中教育评论》2008,5(10):52-65
This is a writing story about trying to create just classroom assessment practices not excluding anybody and therefore an attempt to explore what an opening up to judgment, and in my view, what assessment focused on learning might mean and subsequently imply. Social justice and democracy is at stake. How to develop and improve our assessment literacy？ How to develop trustworthy and good assessment systems？ What are our tools and what methods can we use？ Given a discussion about either summative or formative assessment and preferably both, this is primarily an attempt to think about principals before turning to instruments or starting with the beginning and beyond rather than the endpoint. I argue for keeping classroom assessment as an indefinite problem, a problem not to be solved or a term not to be understood once and for all. That will hopefully foster cultural pluralism and heterogeneity around the term： learning more, learning all, all learning. Ultimately this is about the linguistic conditions for change; but as a move from language to law and as aporetic thinking and through the pivoting but liberating effects of writing; a writing both positioning and giving direction. Through language and as a right to philosophy that is. It is about creating a heteroglossia of a fresh writing inscribed in, through and with otherness; ＂another logic＂ that is. 相似文献