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Evaluating the effectiveness of interactive computer tutorials for an undergraduate mathematical literacy course 总被引：1，自引：0，他引：1
Vera Frith Jacob Jaftha Robert Prince 《British journal of educational technology : journal of the Council for Educational Technology》2004,35(2):159-171
This article describes a study of learning when students used interactive spreadsheet‐based computer tutorials in a mathematical literacy course. It foregrounds theories relating to the role of computer technology (and specifically spreadsheets) as a mediator for learning of mathematics. It outlines the application of quantitative methods involving pre‐ and post‐testing of students, both in the computer laboratory and in the lecture sessions, and discusses factors constraining the experimental design and the usefulness of the results. There are indications that the data reveal real differences between the learning experiences in the lecture sessions and the computer laboratories. It appears that in some respects the computer tutorials were more effective in conveying the concepts than the lecture sessions were. A method of analysing and representing the data, that tracks the extent of learning of concepts through the pre‐ and post‐tests, was developed. It allows for the performance of sub‐groups of students to be examined separately. This analysis shows that simple definitions of disadvantage (such as having English as a second language) are inadequate to account for the poor performance of students in the lower quartile. 相似文献
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Two studies investigating the relationship betweenphoneme awareness and word reading ability in Downsyndrome (DS) are reported. The first study included33 Brazilian individuals with DS (mean age = 23years). They all had begun to read and all showedclear signs of phonological recoding skills. Thirty-three normal children (mean age = 7 years),matched with the individuals with DS for readingability, participated as controls. The second studyincluded individuals with DS with a wider range ofreading ability: a group of 46 readers (mean age = 22years) and a group of 47 nonreaders (mean age = 18years). The results question Cossu, Rossini, andMarshall's (1993a) claim that phoneme awareness is notrelated to alphabetic reading acquisition in DS.Although the individuals with DS who participated inthe first study performed rather poorly on a task thatpresupposes the ability to explicitly manipulatephonological representations, they performed quitewell on a task assessing the ability to detectphonemic similarities in words. We suggest that it wasthis ability that enabled them to acquire phonologicalrecoding skills as well as they did, despite theircognitive limitations. The results of the second studywere consistent with this interpretation. The abilityto detect phonemic similarities in wordssignificantly differentiated between the readers andthe nonreaders, even after we controlled forvariations in letter knowledge, intelligence, andchronological age. 相似文献
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This article explores the issue of what academic literacies research can bring to the study of knowledge and curriculum in higher education from a theoretical perspective and by means of illustrations from a work in progress academic literacies research project in the natural sciences. It argues that reading and writing are central to the process of learning in any discipline and that discipline specialists need to take this into consideration when planning their curricula. It also considers what knowledge means in the context of academic literacies research and how this conception of knowledge may differ from the knowledge structures researchers’ concern with knowledge as an object with its own properties. It comes to the conclusion that academic literacies research with its ethnographic-type exploration of social practice and theorisations of knowledge in the knowledge structures research can complement one another because each field of enquiry brings a lens that the other lacks. 相似文献
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This study explored the differences in young consumers' cognitive responses to visual ads across two cultures. In an experiment, 120 college students from the USA and 120 college students from China were exposed to different types of visual ads, and subsequently participants were instructed to recall objects from the ads, and to list thoughts regarding the product/brand meanings. It was found that compared with Chinese participants, participants from the USA recalled more salient objects and generated more product/brand thoughts elicited by salient objects from the ads. Moreover, Chinese participants were more likely to assign a social role to a person recalled from the ads than their American counterparts. These findings suggested that young Americans attended more to salient objects in the ads, and therefore are more analytic than their Chinese participants. Implications for international advertising were provided. 相似文献
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Exploration of the autistic child's theory of mind: knowledge, belief, and communication 总被引：16，自引：0，他引：16
26 autistic children with mental ages of 3-13 years were tested on 3 tasks that are within the capability of 3- or 4-year-old normal children. The first task tested understanding of a mistaken belief. Children were shown a typical box of a certain brand of sweets, and they all thought that it contained that kind of sweet. To their surprise, however, the box contained something else. Yet, only 4 out of the 26 autistic children were able to anticipate that another child in the same situation would make the same mistake. In contrast, all but 1 of 12 children with specific language impairment, matched for mental age, understood that others would be as misled as they had been themselves. The autistic children were also tested for their ability to infer knowledge about the content of a container from having or not having looked inside. All 4 children who had passed the belief task and an additional 4 performed perfectly, but most failed. The third task assessed children's pragmatic ability to adjust their answers to provide new rather than repeat old information. Here, too, most autistic children seemed unable to reliably make the correct adjustment. These results confirm the hypothesis that autistic children have profound difficulty in taking account of mental states. 相似文献
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Family risk of dyslexia is continuous: individual differences in the precursors of reading skill 总被引：12，自引：0，他引：12
The development of 56 children at family risk of dyslexia was followed from the age of 3 years, 9 months to 8 years. In the high-risk group, 66% had reading disabilities at age 8 years compared with 13% in a control group from similar, middle-class backgrounds. However, the family risk of dyslexia was continuous, and high-risk children who did not fulfil criteria for reading impairment at 8 years performed as poorly at age 6 as did high-risk impaired children on tests of grapheme-phoneme knowledge. The findings are interpreted within an interactive model of reading development in which problems in establishing a phonological pathway in dyslexic families may be compensated early by children who have strong language skills. 相似文献