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This article investigates whether different formats of visualizing information result in different mental models constructed
in learning from pictures, whether the different mental models lead to different patterns of performance in subsequently presented
tasks, and how these visualization effects can be modified by further external representations during task performance. A
total of 80 university students learned from an illustrated text different day times and different dates exist simultaneously
on the earth. One half of the participants received the text combined with pictures visualizing the earth as a kind of carpet
(carpet pictures), whereas the other half received the text combined with pictures visualizing the earth surface as a circle
(circle pictures). After learning, the participants received a test including different kinds of tasks. In both visualization
groups, one half of the participants solved the tasks with an additional external representation, whereas the other half solved
the tasks without an external representation. The findings indicate that the form of visualization affects the structure of
mental models. Different structures of mental models result in different patterns of performance, when individuals solve tasks
based only on their mental representations acquired during their previous learning. However, these effects decrease, when
further external representations are made available to the learners. The findings are discussed within a broader framework
of learning with multiple external representations. 相似文献
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知识可视化的理论与应用 总被引：8，自引：2，他引：8
介绍了知识可视化的由来、原因、目的及方法,在分析知识可视化原有文献的基础上对知识可视化的本质及理论基础提出了自己的不同看法,并介绍了知识可视化在教学中的实际应用。 相似文献
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文章以教育信息化2.0为背景,旨在借助智能技术可视化地诊测内隐于学生心中的最近发展区,解决教师精准定位教学起点和补教内容等问题。利用文献研究方法发现,社会知识与个体认知之间可以借助语言符号进行转化。研究结果表明:准确诊测学生最近发展区的基本原理,就是将学生现有基础水平同其需要达到的学习目标进行比对,再以认知地图方式找出其可视化的差距。其技术实现原理为:采用Spring MVC技术,推送易、中、难测试题,区分出学生基础水平层次,再将学生残缺和模糊不清的知识点进行可视化补教导航。运用这些原理进行教学实验研究,得出了以下结论:(1)通过分层推送练习题,可准确定位学生最近发展区,有针对性地促进其发展;(2)根据学生最近发展区现状,可实现全班大面积的个性化智能教学导航;(3)针对入门教学特征,需要进行认知地图可视化导航设计,针对教学难点,需要开展解题智能可视化导航设计。 相似文献
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对CAD和GIS数据模型进行分析后,论述了如何高效构造可视化的转换模型。可视化转换模型可以在转换结果的准确性和工作效率间找到平衡点,是一种方便、快捷、高效的解决方案。 相似文献
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近五年来图书情报学研究热点与前沿的可视化分析——基于13种高影响力外文源刊的计量研究 总被引：4，自引：0，他引：4
以SCI和SSCI收录的13种高影响力外文源刊在2006-2010年五年间所刊载的论文为研究对象,引入CiteSpaceⅡ工具,并结合传统的文献计量方法,从高影响力作者、高频关键词以及突变专业术语三个方面,对国际范围内图书情报学领域的研究热点和前沿进行辨识和追踪.研究发现,近年来国际范围内的图书情报学呈现出计量、管理、技术三大研究维度,图书情报学定量化研究的趋势不断加强.在Glanzel、Leydesdorff、Egghe 等国际知名计量学家的推动之下,图书情报学将以引文分析、h指数等主题为研究前沿,进入新一轮的繁荣阶段.与此同时,图书情报学的学科发展也将随之进入成熟期和完善期. 相似文献
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E-government is becoming more picture-oriented. What meaning do stakeholders attach to visual events and visualization? Comparative case study research show the functional meaning primarily refers to registration, integration, transparency and communication. The political meaning refers to new ways of framing in order to secure specific interests and claims. To what the institutional meaning relates is ambiguous: either it improves the position of citizens, or it reinforces the existing bias presented by governments. Hence, we expect that the emergence of a visualized public space, through omnipresent penetration of (mobile) multimedia technologies, will influence government–citizen interactions. 相似文献
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雍进军 《四川职业技术学院学报》2012,22(4):84-86
针对传统《高等数学》教学模式单调、教学枯燥等缺点,利用MATLAB强大的数值计算、符号计算、图形可视化三大基本功能辅助高等数学教学,大大提高了教学效率,激发了学生的学习热情,取得很好的教学效果.本文探讨了MATLAB在《高等数学》教学中最常见的几种应用. 相似文献