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401.
The Role of Metaphor in Scientific Epistemology: A Constructivist Perspective and Consequences for Science Education 总被引:1,自引:0,他引:1
I examine the role played by metaphor, in supporting andconditioning our thinking about theoretical models of learning in science education.Some examples are given, of cases where the use of inappropriate metaphors can actually counteract a properunderstanding of the topic being learnt. With special reference to von Glasersfeld's theory of radicalconstructivism, it is argued that much of the controversy appearing in the academic discussion of this theorystems from the injudicious use of metaphors of ``truth' and ``reality', concepts that are in a sense inheritedfrom the domain of Law. These metaphors are often taken too literally, as representing ``obvious' and henceindisputable constraints on scientific investigation; and they then strongly favour the adoption of an epistemologyof scientific realism, which is at variance with the theory of knowledge that is proposed by radical constructivism.However, it is argued that this realist epistemology is not compelling, since it rests on a somewhat contentiousmetaphoric base, and that a radical-constructivist epistemology offers a better strategy for the purposesof science education. 相似文献
402.
Manfred Hofer Stefan Fries Andreas Helmke Britta Kilian Claudia Kuhnle Ilija Živković Richard Goellner Tuyet Helmke 《Learning and Instruction》2010,20(3):239-249
The experience of motivational interference during studying and leisure in a school-leisure conflict and its relationship to pupils' value orientations were investigated in a self-report study of Vietnamese pupils (N = 346, mean age = 15 years). The results were compared with a combined sample consisting of pupils from nine other countries (N = 2155). From a cross-cultural perspective, the mean values of the variables show that Vietnamese pupils differ with regard to their values and motivational interference from pupils in other countries. Within the Vietnamese sample, modern value orientation was positively related to decision for a studying activity in a school-leisure conflict and to experience of motivational interference during a leisure activity and negatively related to interference during studying. For post-modern value orientation, the relationships were mostly reversed. Despite differences between sample means, the consistency in the relationships between the variables across the samples indicates that the pattern of relationships can be generalized. 相似文献
403.
404.
Andreas R. Köhler Conny Bakker David Peck 《European Journal of Engineering Education》2013,38(4):441-451
Developed economies have become highly dependent on a range of technology metals with names such as neodymium and terbium. Stakeholders have warned of the impending scarcity of these critical materials. Difficulties in materials supply can affect the high-tech industries as well as the success of sustainable innovation strategies that are based on sophisticated technology. Industrial designers and engineers should therefore increase their awareness of the limits in availability of critical materials. In this paper, it is argued that materials’ criticality can give a fresh impetus to the higher education of industrial design engineers. It is important to train future professionals to apply a systems perspective to the process of technology innovation, enabling them to thrive under circumstances of constrained material choices. The conclusions outline ideas on how to weave the topic into existing educational programmes of future technology developers. 相似文献
405.
406.
Andreas Nehring Kathrin H. Nowak Annette Upmeier zu Belzen Rüdiger Tiemann 《International Journal of Science Education》2013,35(9):1343-1363
Research on predictors of achievement in science is often targeted on more traditional content-based assessments and single student characteristics. At the same time, the development of skills in the field of scientific inquiry constitutes a focal point of interest for science education. Against this background, the purpose of this study was to investigate to which extent multiple student characteristics contribute to skills of scientific inquiry. Based on a theoretical framework describing nine epistemological acts, we constructed and administered a multiple-choice test that assesses these skills in lower and upper secondary school level (n?=?780). The test items contained problem-solving situations that occur during chemical investigations in school and had to be solved by choosing an appropriate inquiry procedure. We collected further data on 12 cognitive, motivational, and sociodemographic variables such as conceptual knowledge, enjoyment of chemistry, or language spoken at home. Plausible values were drawn to quantify students’ inquiry skills. The results show that students’ characteristics predict their inquiry skills to a large extent (55%), whereas 9 out of 12 variables contribute significantly on a multivariate level. The influence of sociodemographic traits such as gender or the social background becomes non-significant after controlling for cognitive and motivational variables. Furthermore, the performance advance of students from upper secondary school level can be explained by controlling for cognitive covariates. We discuss our findings with regard to curricular aspects and raise the question whether the inquiry skills can be considered as an autonomous trait in science education research. 相似文献
407.
Analyzing and designing productive group work and effective communication constitute ongoing research interests in mathematics education. In this article we contribute to this research by using and developing a newly introduced analytical approach for examining effective communication within group work in mathematics education. By using data from 12 to 13-year old students playing a dice game as well as from a group of university students working with a proof by induction, the article shows how the link between visual mediators and technical terms is crucial in students’ attempts to communicate effectively. The critical evaluation of visual mediators and technical terms, and of links between them, is useful for researchers interested in analyzing effective communication and designing environments providing opportunities for students to learn mathematics. 相似文献
408.
Three experiments with students from 7th and 8th grade were performed to investigate the effects of decorative pictures in learning as compared to instructional pictures. Pictures were considered as instructional, when they were primarily informative, and as decorative, when they were primarily aesthetically appealing. The experiments investigated, whether and to what extent decorative pictures affect the learner’s distribution of attention, whether they have an effect on the affective and motivational state and whether they affect the learning outcomes. The first experiment indicated with eye-tracking methodology that decorative pictures receive only a bit initial attention as part of the learner’s initial orientation and are largely ignored afterwards, which suggests that they have only a minor distracting effect if any. The second experiment showed that despite the small amount of attention they receive, decorative pictures seem to induce better mood, alertness and calmness with learners. The third experiment indicated that decorative pictures did not intensify students’ situational interest, but reduced perceived difficulty of the learning material. Regarding outcomes of learning, decorative pictures were altogether neither harmful nor beneficial for learning. However, they moderated the beneficial effect of instructional pictures––in essence: the multimedia effect. The moderating effect was especially pronounced when learners had lower prior knowledge. The findings are discussed from the perspective of cognitive, affective and motivational psychology. Perspectives of further research are pointed out. 相似文献
409.
The expertise reversal effect occurs when learner’s expertise moderates design principles derived from cognitive load theory. Although this effect is supported by numerous empirical studies, indicating an overall large effect size, the effect was never tested by inducing expertise experimentally and using instructional explanations in a computer-based environment. The present experiment used an illustrated introductory text and a computer program about statistical data analyses with 93 students. Retention and transfer tests were employed as dependent measures. Each learner was randomly assigned to one condition of a 2 × 2 between subjects factorial design with the two factors expertise (novices vs. ‘experts’) and explanations (with vs. without). Expertise was induced by adding expository examples and illustrations to the introductory text to enhance text coherence and facilitate text comprehension. The expertise reversal effect was replicated for the dependent measure transfer, but not for retention. Results and implications for adaptive learning environments are discussed. 相似文献
410.
Manuel Jonas Steinbauer Andreas Gohlke Christine Mahler Andreas Schmiedinger Carl Beierkuhnlein 《Journal of Cultural Heritage》2013,14(3):219-228
Historic buildings are important for cultural history and provide a variety of habitats for animals and plants. Especially structural heterogeneity of wall surfaces is perceived to support biological diversity. Nevertheless, in traditional approaches goals of biodiversity preservation and monument restoration are perceived to interfere and to be mutually exclusive. As a consequence, priority is often given to constructional restoration accepting the loss of local populations and biodiversity. At walls of medieval castles, including an experimental restoration project where conventional and less intensive restoration techniques were applied, we relate species composition and richness to wall properties. Especially wall surface structure is quantified using a novel approach. The study focuses on lichens, mosses and vascular plants. Boosted regression tree analyses and non-metric multidimensional scaling techniques are applied to detect the influence of abiotic site conditions on biodiversity. We find species richness to be promoted by wall surface heterogeneity. However, species composition is more affected by restoration approaches than species richness. Lichen composition varies considerably while vascular plants and mosses are less affected by wall properties. We suggest strategies that are combining both societal targets, the preservation of historic monuments and of species diversity. Careful restoration is capable of supporting both, the maintenance of cultural heritage and of rare and unique anthropogenic habitats. Wall surface heterogeneity needs to be witnessed for both aspects as it affects both species composition as well as the effectiveness of cleaning methods. 相似文献