Newtons Pen II: An Intelligent, Sketch-Based Tutoring System and its Sketch Processing Techniques

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dc.contributor.authorLee, Chia-Kengen_US
dc.contributor.authorJordan, Josiahen_US
dc.contributor.authorStahovich, Thomas F.en_US
dc.contributor.authorHerold, Jamesen_US
dc.contributor.editorKaran Singh and Levent Burak Karaen_US
dc.date.accessioned2014-01-28T18:19:35Z
dc.date.available2014-01-28T18:19:35Z
dc.date.issued2012en_US
dc.description.abstractWe present a pen-based intelligent tutoring system (ITS) for undergraduate Statics which scaffolds students in the construction of free body diagrams and equilibrium equations. Most existing ITSs rely on traditional WIMP (Windows, Icons, Menus, Pointers) interfaces, which often require the student to select the correct answer from among a set of predefined choices. Our system, by contrast, guides students in constructing solutions from scratch, mirroring the way they ordinarily solve problems, which recent research suggests is important for effective instruction. Our system employs several new techniques for sketch understanding, including a simple-to-implement stroke merging technique, a stroke clustering technique, and a technique that uses a Hidden Markov Model to correct interpretation errors in equations. Our tutoring system was deployed in an undergraduate Statics course at our university. Attitudinal surveys indicate that the tutoring system is preferable to traditional WIMP-based systems and is an effective educational tool.en_US
dc.description.seriesinformationEurographics Workshop on Sketch-Based Interfaces and Modelingen_US
dc.identifier.isbn978-3-905674-42-2en_US
dc.identifier.issn1812-3503en_US
dc.identifier.urihttps://doi.org/10.2312/SBM/SBM12/057-065en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectCategories and Subject Descriptors (according to ACM CCS): I.3.3 [H.5.2]: Information interfaces and presentation (e.g., HCI)-User Interfaces Prototypingen_US
dc.titleNewtons Pen II: An Intelligent, Sketch-Based Tutoring System and its Sketch Processing Techniquesen_US
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SBM12: Sketch Based Interfaces and Modeling 2012