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Unformatted text preview: Copyright 2007 by the Association for Computing Machinery, Inc. Permission to make digital or hard copies of part or al of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for commercial advantage and that copies bear this notice and the ful citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, to republish, to post on servers, or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from Permissions Dept, ACM Inc., fax +1 (212) 869-0481 or e-mail firstname.lastname@example.org . Sketch-Based Interfaces and Modeling 2007, Riverside, CA, August 02-03, 2007. 2007 ACM 978-1-59593-913-5/07/0008 $5.00 EUROGRAPHICS Workshop on Sketch-Based Interfaces and Modeling (2007) M. van de Panne, E. Saund (Editors) Newtons Pen - A Pen-based Tutoring System for Statics WeeSan Lee, 1 Ruwanee de Silva, 2 Eric J. Peterson, 2 Robert C. Calfee, 3 and Thomas F. Stahovich 2 1 Computer Science Department, University of California, Riverside 2 Mechanical Engineering Department, University of California, Riverside 3 Graduate School of Education, University of California, Riverside Abstract We present Newtons Pen, a statics tutor implemented on a pentop computer, a writing instrument with an in- tegrated digitizer and embedded processor. The tutor, intended for undergraduate education, scaffolds students in the construction of free body diagrams and equilibrium equations. This project entailed the development of sketch understanding techniques and user interface principles for creating pedagogically-sound instructional tools for pentop computers. Development on the pentop platform presented novel challenges because of limited computa- tional resources and a visually static, ink-on-paper display (the only dynamic output device is an audio speaker). We show that a system architecture based on a f nite state machine reduces the computational complexity, and serves as a convenient means for providing context-sensitive tutorial help. Our pilot study suggests that Newtons Pen has potential as an effective teaching tool. 1. Introduction Intelligent tutoring systems have been widely studied and have been applied to a variety of domains [ SH04 , FAR84 , BDM06 , RHC 03 , VLS 05 ]. Most current systems are based on WIMP (windows, icons, mouse, and pointer) interfaces. However, research suggests that transfer of skills from train- ing to testing is higher when the testing and training envi- ronments are similar [ Mes05 ]. Thus, there is a clear bene f t to creating tutoring systems with interfaces that match real- world problem-solving environments....
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This note was uploaded on 06/12/2011 for the course CAP 6105 taught by Professor Lavoila during the Spring '09 term at University of Central Florida.
- Spring '09