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The purpose of the current article is to examine the impact of laboratory demonstrations and computer visualizations on learning in a third-year fluid mechanics course at Norwegian University of Science and Technology (NTNU). As a first step, on entering the course, students were exposed to a laboratory demonstration focusing on the nature of waves. Students were subsequently taught the theory of wave mechanics in a regular class along with exercises. Finally, the computer algebra system Maple was used to simulate physical properties of the waves using the mathematical equations. The illustrations throughout the paper are examples of some of the pedagogical devices that students were exposed to during the project. The students enjoyed the demonstrations, but there are some indications that the interventions did not help to improve learning of phenomena. 相似文献
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CHEN Su-shing GRUNWALD Sabine 《浙江大学学报(A卷英文版)》2005,6(11):1235-1248
INTRODUCTION A large number of environmental digital librar- ies have been designed and implemented recently to effectively manage environmental data such as satel- lite photos and images, map images, cartographic materials, and so on. Support for storing, distributing, searching for, retrieving, and utilizing this informa- tion is imperative in order for it to be used to its maximum potential benefit and effectiveness (Hicks and Tochtermann, 1998). The variability of envi- ronmental data… 相似文献
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Richard Lesh James A. Middleton Elizabeth Caylor Shweta Gupta 《Educational Studies in Mathematics》2008,68(2):113-130
In this information age, the capacity to perceive structure in data, model that structure, and make decisions regarding its
implications is rapidly becoming the most important of the quantitative literacy skills. We build on Kaput’s belief in a Science
of Need to motivate and direct the development of tasks and tools for engaging students in reasoning about data. A Science
of Need embodies the utility value of mathematics, and engages students in seeing the importance of mathematics in both their
current and their future lives. An extended example of the design of tasks that require students to generate, test, and revise
models of complex data is used to illustrate the ways in which attention to the contributions of students can aid in the development
of both useful and theoretically coherent models of mathematical understanding by researchers. Tools such as Fathom are shown
as democratizing agents in making data modeling more expressive and intimate, aiding in the development of deeper and more
applicable mathematical understanding.
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| James A. MiddletonEmail: |
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Recent increased interest in computational thinking poses an important question to researchers: What are the best ways to teach fundamental computing concepts to students? Visualization is suggested as one way of supporting student learning. This mixed-method study aimed to (i) examine the effect of instruction in which students constructed visualizations on students’ programming achievement and students’ attitudes toward computer programming, and (ii) explore how this kind of instruction supports students’ learning according to their self-reported experiences in the course. The study was conducted with 58 pre-service teachers who were enrolled in their second programming class. They expect to teach information technology and computing-related courses at the primary and secondary levels. An embedded experimental model was utilized as a research design. Students in the experimental group were given instruction that required students to construct visualizations related to sorting, whereas students in the control group viewed pre-made visualizations. After the instructional intervention, eight students from each group were selected for semi-structured interviews. The results showed that the intervention based on visualization construction resulted in significantly better acquisition of sorting concepts. However, there was no significant difference between the groups with respect to students’ attitudes toward computer programming. Qualitative data analysis indicated that students in the experimental group constructed necessary abstractions through their engagement in visualization construction activities. The authors of this study argue that the students’ active engagement in the visualization construction activities explains only one side of students’ success. The other side can be explained through the instructional approach, constructionism in this case, used to design instruction. The conclusions and implications of this study can be used by researchers and instructors dealing with computational thinking. 相似文献
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GU Qian-yi AHMAD Faisal SUMNER Tamara 《浙江大学学报(A卷英文版)》2005,6(11):1306-1311
INTRODUCTION In this paper, we present our work in the Strand Map Service (SMS), which provides concept map based browsing interfaces for resource discovery in a library independent manner within American Na- tional Science Digital Library (NSDL). As critical components of digital libraries, dis- covery systems provide interfaces that support user to search and browse for resources in digital libraries (Hall et al., 1999). The effectiveness of discovery systems has big impact on the… 相似文献
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分析C程序的函数调用机制,阐述函数调用可视化实现技术,并利用GNU编译器工具链跟踪函数,对函数调用进行可视化展示,从而有助于对复杂函数调用特别是递归调用中的算法设计、栈区使用、代码优化等内容的理解。 相似文献
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医药行业正在面临一场巨大的转折：大量药物陆续失去专利保护,进入仿制药行业;同时新的治疗作用的化合物实体发现的脚步在放缓,以生物标志物为前提的下一代医疗技术——个性化医疗已初露端倪。在这场转折中,行业面临着如何预警新的仿制药品种,如何提高新药研发效率,以及如何及时洞察个性化医疗中出现的新技术。信息的有效利用是顺利解决以上问题的不可或缺的环节,尤其在2008年我国启动了“重大新药创制”专项的大背景下,如何有效利用医药情报,提高专项经费的利用效率与成功率,也将成为一个重大的课题摆在我们面前。文章试图通过探讨如何利用信息的可视化分析技术,有效地将零散的信息,转化成有意义的情报,用以指导研发与政策策略的制定,更好地应对当前所面对的问题。 相似文献
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