高等学校扩建面临的机遇和问题研究

高等学校扩建面临多种机遇:社会发展进程、各级政府政策支持、舒缓就业压力、教育的投资和消费等推动了高等教育的发展。但是高校扩建中会遇到教育资源不足、筹资渠道有限、生源竞争激烈、投资效益不高等问题,亟待解决。     

PDAs as lifelong learning tools: an activity theory based analysis

This paper describes the use of an activity theory (AT) framework to analyze the ways that distance part time learners and mobile workers adapted and appropriated mobile devices for their activities and in turn how their use of these new tools changed the ways that they carried out their learning or their work. It is argued that there are two key strengths in using an activity theory framework in this context. The first strength is the emphasis activity theory places on tools, including computer artefacts, as mediators of activity. This emphasis focuses attention on the activity itself rather than, for example, simply the interaction between the human and the computer. The focus is on the learner or user’s objectives and activities and the computer is the tool through which the user achieves her objectives. The second strength was referred to briefly above. The AT perspective also enabled analysis of an interactive dynamic process of users or learners and their tools—in this case personal digital assistants (PDAs). It revealed a two way process in which the user adapts the tools they use according to their everyday practice and preferences in order to carry out their activities; and how, in turn, the tools themselves also modify the activities that the user is engaged in. Three case studies illustrate these processes. The first case study is of distance learners’ use of e‐books on PDAs, to supplement their access to other static media such as books and computers. The second case study investigated how mobile workers in the energy industry used mobile devices to access information when away from the office. The third and final case study investigated the use of mobile devices in an art gallery. The paper concludes with a discussion of the information access needs that are apparent in each of these learning contexts, and highlights the pertinent issues in the use of mobile technologies to support lifelong learners’ information needs.     

在传统与保守中获取自由——论大学传统与保守的文化品格及当下意义

大学传统与保守的文化品格形成具有必然性和合理性,其发展与升华的最高境界是自由,自由教育是其精神内核。大学传统与保守文化品格的形成与超越,必须坚持自由探索的原则,坚持“教育重于教学”的思想,保守人文教育传统,实现自由教育与职业性教育的调和发展,达到保守性与进取性的均衡和谐状态。     

EPR-RCGA-based modelling of compression index and RMSE-AIC-BIC-based model selection for Chinese marine clays and their engineering application

The compression index is a key parameter in the field of soft clay engineering. In this paper, we propose an improved method for correlating the compression index with the physical properties of intact Chinese marine clays that are involved in many construction projects in coastal regions in China. First, the compression index and some common physical properties of clays from 21 regions along the Chinese coast are extracted from the literature. Then, a basic regression analysis for the compression index using the natural water content and Atterberg limits is conducted. To improve the correlation performance, an evolutionary polynomial regression (EPR) and real coded genetic algorithm (RCGA) combined technique is adopted to formulate different equations involving different numbers of variables. An optimal correlation using only natural water content and liquid limit as input parameters is finally selected according to the root mean square error (RMSE), Akaike’s information criterion (AIC), and Bayesian information criterion (BIC). The proposed correlation is evaluated and shown to perform better than existing empirical correlations in predicting the compression index for all selected Chinese marine clays. This correlation is validated to be reliable and applicable to engineering applications through the prediction of the properties of an embankment on the southeast coast of China using finite element method. All comparisons show that the EPR and RCGA combined technique is powerful for correlating the compression index with the physical properties of the clay, and that model selection by RMSE, AIC, and BIC is effective. The proposed correlation could be used to update current formulations, and is applicable to engineering design in coastal regions of China.     

Towards a theory of instruction in the 1980s

The purpose of this article is to provide a historical perspective on the contributions of learning and instruction to instructional theory and to discuss some of the major obstacles currently inhibiting the growth of “Instructional Theory.” Some suggestions for future development of this discipline are provided. In clarifying the impediments to instructional theories' development, heavy reliance is placed upon the process of theory construction as perceived by philosophers of the natural and social sciences. Some comments are made regarding the appropriate use of instructional theory in developing nations.     

Group trust,communication media,and interactivity: toward an integrated model of online collaborative learning

The present investigation examines the multidimensional relationships among several critical components in online collaborative learning, including group trust, communication media, and interactivity. Four hundred eleven university students from 103 groups in the United States responded survey items on online collaboration, interactivity, communication media, and group trust. Structural equation modeling was employed to examine the relationships among these variables. Results revealed that trust among group members had a positive and powerful influence on online collaboration. Results further revealed that the influence of group trust on online collaboration was mediated by communication media and the interactivity among group members. These findings are discussed in the context of existing literature in the field. Practical implications and directions for future investigation are provided.     

Located in the thin of it: Young children’s use of thin moral concepts

One important socio-cultural medium through which young children’s moral understanding is cultivated is parent/child discourse. Of particular interest to us was young children’s use of basic (‘thin’) evaluative concepts (good, bad, right and wrong), which are ubiquitous in everyday discourse and serve as a potential bridge from the non-moral to the moral domain. We investigated 14 2–5-year-old children’s (and their parents’) use of thin evaluative concepts and found that while they frequently used good and bad to morally evaluate other people’s and their own psychological/dispositional states and behaviors—as well as, less frequently, to highlight relevant standards, expectations and rules—they did not use right and wrong. In contrast, a sample of US written and spoken public conversation revealed that adults did. Reasons for this are discussed, along with the frequency of different types of moral evaluations, differences between children and their parents, and age-related trends.     

A PERSONAL CONSTRUCT APPROACH TO EVALUATING TEACHING PRACTICE

During 1976, one of us decided to investigate the use of Kelly's personal construct theory and the triadic form of his repertory grid in enhancing understanding between a supervisor and a student‐teacher, when evaluating that student's teaching. An account of the procedure is given. In discussion, the student and supervisor agreed that the procedure, although long and demanding, led to a greater understanding of their own and each other's perspectives of the lesson evaluated. But it was admitted that the particular procedure employed and the use of the triadic form of the repertory grid are both time consuming and tiring. A rating form of the repertory grid in a simpler procedure was then explored in a similar teaching situation. An account of this second approach is also given. It was agreed that this approach was much simpler than in the original investigation and both student and supervisor (who were common to both investigations) found that it led to a greater understanding of their own and each other's perspectives. The authors therefore suggest that a rating form of the repertory grid (and the accompanying theory) can be used to enhance understanding between student‐teachers and their supervisors. They also propose that this would be a useful procedure in other educational contexts when an evaluation takes place.