GreedEx: A Visualization Tool for Experimentation and Discovery Learning of Greedy Algorithms

Autor/inn/en	Velazquez-Iturbide, J. A.; Debdi, O.; Esteban-Sanchez, N.; Pizarro, C.
Titel	GreedEx: A Visualization Tool for Experimentation and Discovery Learning of Greedy Algorithms
Quelle	In: IEEE Transactions on Learning Technologies, 6 (2013) 2, S.130-143 (14 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1939-1382
DOI	10.1109/TLT.2013.8
Schlagwörter	Computer Science Education; Visual Aids; Mathematics; Experiments; Discovery Learning; Computer Uses in Education; Computer Software; Usability; Computer Software Evaluation; Expertise; College Instruction; College Students; Instructional Effectiveness; Active Learning; Instructional Innovation; Foreign Countries; Visualization; Spain + Suchen Sie Ihr Suchwort? Computer science lessons; Informatikunterricht; Anschauungsmaterial; Mathematik; Erprobung; Entdeckendes Lernen; Computernutzung; Softwareanalyse; Expert appraisal; Hochschullehre; Collegestudent; Unterrichtserfolg; Aktives Lernen; Educational Innovation; Bildungsinnovation; Ausland; Visualisation; Visualisierung; Spanien
Abstract	Several years ago we presented an experimental, discovery-learning approach to the active learning of greedy algorithms. This paper presents GreedEx, a visualization tool developed to support this didactic method. The paper states the design goals of GreedEx, makes explicit the major design decisions adopted, and describes its main characteristics in detail. It also describes the experience of use, the usability evaluations conducted, and the evolution of GreedEx in these years in response to the findings of the usability evaluations. Finally, the positive results obtained in an evaluation of educational effectiveness are shown. The paper has three main contributions. First, the GreedEx system itself is an innovative system for experimentation and discovery learning of greedy algorithms. Second, GreedEx is different from other visualization systems in its support to higher levels of learning, in particular evaluation tasks. Finally, GreedEx is an example of a medium-term research project, where an educational system was designed from explicit learning goals and was later refined in a user-centered design process involving instructors and students, before carrying out a successful evaluation of educational effectiveness. (As Provided).
Anmerkungen	Institute of Electrical and Electronics Engineers, Inc. 445 Hoes Lane, Piscataway, NJ 08854. Tel: 732-981-0060; Web site: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4620076
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10