在线学习的理论与实践

本刊今年第3期刊登了记者对国际知名远程教育专家、加拿大阿萨巴斯卡大学特里·安德森教授的专访。安德森教授在专访中提及他和同事法希·埃劳米的新著《在线学习的理论与实践》,“希望能得到我们中国朋友的青睐和欣赏”。该书收录了16篇论文,作者全部是阿萨巴斯卡大学的教师和研究者,也都是20世纪90年代中期以来阿萨巴斯卡大学为了应对日益裁减的政府资助和生源的锐减而进行大规模教育改革的实践者和见证人,这些论文既有经验总结又有前瞻性的思考,对我国的远程教育事业不无借鉴价值。鉴于此,本刊特邀肖俊洪先生谨将该书两位主编所撰写的“引言”中的有关全书内容概要的部分译成中文,以飨读者。     

The influence of pictures on the derivation of meaning from children's reading materials

This discussion is a review of experimental work designed to determine whether pictures have an effect upon the derivation of meaning from the text printed in children's reading materials. Many reading schemes emphasize the use of illustration, but for a number of different purposes ranging from the provision of a referent for a specific word, to the provision of' contextual support, and the generation of motivation for reading. Experimental studies of the interactions between pictures arid words in the cognitive system go some way to supporting three uses of illustration in (a) the provision of meanings against which the print may be compared, (b) in the development of an organized understanding of the meaning of the text, and (c) in the enhancement of subsequent recall. The danger of distraction arising from the pictures has also been investigated, and been found to lead to decoding errors in young children presented with one word at a time. An analysis of mutual interference effects between pairs of pictures and words leads to the conclusion that the cognitive representations of meanings arc organized in a semantic system common to pictures and words. Thus, any decoding errors due to interference effects are of more than local importance—they can affect comprehension and influence the stored representation.     

State-mandated accountability as a constraint on teaching and learning science

The purpose of this study is to examine the effect of state-mandated policy, emphasizing control through performance-based instruction and student test scores as the basis for determining school accreditation, on the teaching and learning of science. The intended consequence of instigating the rational theory of management by one state is to improve their current level of student literacy. However, some contend that the implementation of the policy has results that are not intended. The identification of the tension between the intended and unintended results of centralized policy making is the basis for examining a specific case in which the rational model is implemented. One hundred and sixty-five seventh-grade science students and four teachers are participants in the study. Qualitative analysis is the research methodology used as a means to provide detailed information about the contextual nature of the classroom processes. The intention is to identify and describe features of the behavior setting that influence the behavior of the teachers and their students. Three assertions generated during the field work were: Teachers redefine the goals of science instruction as the acquisition of facts and isolated skills, teachers alter their usual instructional behavior to implement uniform instructional procedures, and the teacher/student classroom interaction constrains students' opportunities to learn science. The implications of the study indicate that the state-mandated policy has results that are in opposition to the intended results. Instead of improving the practices of teachers, the implementation of the policy constrains and routinizes the teachers' behavior, causing them to violate their own standards of good teaching. They feel pressured to “get through” the materials so students will score well on tests. The classroom interaction is structured in such a way as to inhibit students from asking questions of their own. As a result, students' opportunity to express curiosity and inquiry—central processes in scientific thinking—are constrained. These unintended consequences of the implemented state policy, instead of improving science teaching and learning, continue to reduce science instruction to the literal comprehension of isolated facts and skills.     

Dialect variation,dialect-shifting,and reading comprehension in second grade

The purpose of this study was to examine second graders’ (n = 680) changing spoken nonmainstream American English (NMAE) use in relation to their oral language and reading comprehension achievement. Fall NMAE production was negatively associated with fall achievement scores. NMAE production generally decreased from fall to spring. Students who qualified for the US Free and Reduced Lunch program (FARL) and who had stronger language skills were more likely to decrease their NMAE use (i.e., dialect shifting) than their peers who did not qualify for FARL or their peers with weaker language skills. Dialect shifting for a sub-sample of 102 students who used substantial amounts of NMAE at the beginning of the school year was predicted by school context, controlling for reading and language skills—in general, students who attended more affluent schools dialect shifted to a greater extent than did their peers who attended higher poverty schools. Greater dialect shifting in this group predicted gains in reading comprehension from fall to spring.     

Academic offences and e-learning: individual propensities in cheating

It has been argued that the use of Information and Communications Technologies has made academic dishonesty easier but this does not necessarily mean that it is more prevalent. The study presented here investigated the attitudes to, and extent of, self‐reported involvement in Internet supported dishonest academic practices. Multiple linear regression analyses showed that Internet experience, acceptability of cheating and assessment of risk predicted an individual student's acceptance of acts such as plagiarism as a legitimate way to achieve academic goals. There was a complex interrelationship among gender, frequency of Internet usage, and maturity of students. Academic offences tended to be more acceptable to males, but also to active Internet users, who were often female: that is females who joined the Internet culture were more prone to plagiarise than their non‐active peers. New undergraduates were more likely to err than students in later years of their degree. These results show that there are a number of interrelated factors impacting on individuals’ willingness to commit academic offences. The final discussion of this paper both recognises that Internet supported academic offences occur and briefly outlines some technical and non‐technical responses that should be considered by faculty to ameliorate this problem.     

Achieving equivalence: a transnational curriculum design framework

Transnational education is now essential to university international development strategies. As a result, tertiary educators are expected to engage with the complexities of diverse cultural contexts, different delivery modes, and mixed student cohorts to design quality learning experiences for all. To support this transition we developed a transnational curriculum design framework that synthesises knowledge about what impacts on curriculum design. This framework aims to help academic developers communicate complex educational concepts and foster international communities of practice. It guides cyclical implementation that is focused on achieving equivalent and quality educational outcomes for students regardless of their location across the globe.     

IDEA: Identifying design principles in educational applets

The Internet is increasingly being used as a medium for educational software in the form of miniature applications (e.g., applets) to explore concepts in a domain. One such effort in mathematics education, the Educational Software Components of Tomorrow (ESCOT) project, created 42 miniature applications each consisting of a context, a set of questions, and one or more interactive applets to help students explore a mathematical concept. They were designed by experts in interface design, educational technology, and classroom teaching. However, some applications were more successful for fostering student problem-solving than others. This article describes the method used to mine a subset (25) of these applets for design principles that describe successful learner-centered design by drawing on such data as videos of students using the software and summaries of written student work. Twenty-one design principles were identified, falling into the categories of motivation, presentation, and support for problem solving. The main purpose of this article is to operationalize a method for post hoc extraction of design principles from an existing library of educational software, although readers may also find the design principles themselves to be useful. This project was funded by a seed grant from the Center for Innovative Learning Technologies funded by the National Science Foundation (REC # 9720384), and was partially supported by Educational Testing Service. Any opinions expressed in this publication are those of the authors and not necesarily of Educational Testing Service.