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Creating Engaging Online Learning Material with the JSAV JavaScript algorithm Visualization Library

IEEE TRANSACTIONS ON LEARNING TECHNOLOGIES 2016年第2期9卷 171-183页

作者： Karavirta, Ville Shaffer, Clifford A. Univ Turku Dept Informat Technol Helsinki Finland Virginia Tech Dept Comp Sci Blacksburg VA 24061 USA

data structures and algorithms are a central part of Computer Science. Due to their abstract and dynamic nature, they are a difficult topic to learn for many students. To alleviate these learning difficulties, instructors have turned to algorithm visualizations (AV) and AV systems. Research has shown that especially engaging AVs can have an impact on student learning of DSA topics. Until recently, most AV systems were Java-based systems. But, the popularity of Java has declined and is being supplanted by HTML5 and JavaScript content online. In this paper, we present JSAV: the JavaScript AV development library. JSAV goes beyond traditional AV library support for displaying standard data structures components, to provide functionality to simplify creation of AVs on many engagement levels including interactive exercises. We describe the growing body of content created with JSAV and summarize our three years of experience and research results from using JSAV to build content that supports CS education.

关键词： data structure and algorithm visualizations algorithm animation interactive courseware HTML5 active electronic textbooks hypertextbook JSAV

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algorithm Visualization: A Report on the State of the Field 07

Algorithm Visualization: A Report on the State of the Field

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38th SIGCSE Technical Symposium on Computer Science Education

作者： Shaffer, Clifford A. Cooper, Matthew Edwards, Stephen H. Virginia Tech Dept Comp Sci Blacksburg VA 24061 USA

ISBN: (纸本)9781595933614

We present our findings on the state of the field of algorithm visualization, based on extensive search and analysis of links to hundreds of visualizations. We seek to answer questions such as how content is distributed among topics, who created algorithm visualizations and when, the overall quality of available visualizations, and how visualizations are disseminated. We have built a wiki that currently catalogs over 350 algorithm visualizations, contains the beginnings of an annotated bibliography on algorithm visualization literature, and provides information about researchers and projects. Unfortunately, we found that most existing algorithm visualizations are of low quality, and the content coverage is skewed heavily toward easier topics. There are no effective repositories or organized collections of algorithm visualizations currently available. Thus, the field appears in need of improvement in dissemination of materials, informing potential developers about what is needed, and propagating known best practices for creating new visualizations.

关键词： data structure and algorithm visualizations algorithm Animation Courseware

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Active eTextbooks for CS: what should they be? (abstract only) 12

Active eTextbooks for CS: what should they be? (abstract onl...

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Proceedings of the 43rd ACM technical symposium on Computer Science Education

作者： Clifford A. Shaffer Virginia Tech Blacksburg VA USA

ISBN: (纸本)9781450310987

What should the textbook of tomorrow look like in a world of ubiquitous access to computing? Hypertextbooks have proved difficult to create and been fundamentally passive experiences. Commercial eBooks are merely books printed on an electronic screen instead of paper. New technologies such as HTML5 make it feasible to develop interactive applications that integrate with web services to provide a rich, pedagogically effective learning environment compatible with a range of computing platforms. We seek to generate discussion by participants to describe what they hope to see in online textbooks in the near future, and what resources and support would be required for them to adopt such a thing into their own courses.

关键词： active electronic textbooks courseware algorithm animation data structure and algorithm visualizations

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