Educational scenarios for cooperative use of Personal Digital Assistants

1. Educational scenarios for cooperativeuse of Personal Digital Assistants Group 4 Present by: Carlos, Jesse, Patrick Date: November 30, 2006

2. Author (I) N. Pinkwart • Interim Professor for Software Engineering • Clausthal University of Technology Computer Science Institute,Germany Research Interests: • Semantic Web technologies used within recommender systems • Visual modeling languages with heterogeneous semantics • Lecture support through integration of digital whiteboards with web based portals • Graph grammars and their use for model-checking • Learning community support through collaborative filtering approaches and machine learning techniques

3. Author (II) H.U. Hoppe • Principal researcher, Computer Graphics Group of Microsoft Research, within Microsoft Corporation. Research Interests: • Texture synthesis (data amplification) • Geometry images(regularly sampled surfaces) • Progressive meshes (irregular connectivity) • Subdivision-based multiresolution (semi-regular connectivity) • Surface parametrization (geometry texturing) • Efficient rendering • Surface reconstruction(geometry creation)

4. Author (III) M. Milrad • CeLeKT School of Mathematics and SystemsEngineering,SWEDEN Research Interests: • design of learning environments to support learning about complex domains • collaborative discovery learning • the development of mobile and wireless applications to support collaborative learning.

5. Author (IV) J. Perez

6. Abstract • Three approaches for extending co-constructive modeling and discussion environments with Personal Digital Assistants (PDAs) connected through a wireless network are described. • Annotation Tool • Modeling System • Wireless Optical Reader

7. Introduction • PDA is useful • NIMIS • Hardware • Interactive Whiteboard • Pen-based Tablet • Software • Special Application • Today’s Talking Typewriter (Initial Reading&Writing)

9. Introduction Cont. • Four principles • Provide uniform access • Avoid letting the technology ”get in the way” • Do not let the educational scenario be determined by the use of a computer • Exploit the added-value

10. Introduction Cont. • Collaborative Mind Tools • Synchronous Collaboration • Interactive-constructive environment • Two Example • System Dynamics • Petri Nets Petri Nets 是一種數學模型工具(mathematical modeling tool), 在西元 60 年代左右由德國的數學及電腦科學家 Petri 所提出, 因此名稱就叫 Petri-Nets, 它由 place , transition 與 arc 組成. place 是圓(circle)或橢圓(ellipse)表示, place 中存放的是 token, transition 以矩型表示, arc 連接 place與 transition.

11. Educational applications of PDAs • Two Types • PDA serving as an interface (can’t without PC) • ImageMap • Museum Guide • Standalone Application (can without PC) • Geney • PiCoMap

12. Geney

13. Pico Map

14. Educational applications of PDAs(cont.) • AF’s Disadvantage • One-time download or upload • Distance and Direction • The model-view-controller concept • A partial view • A reduced processing • A partial data

15. A platform for collaborative modeling • Cool Modes • Share Workspace • Different Visual Language • Four Layer • One for background image • One for annotation • Two for object • Personal Annotation • MatchMaker

16. Extensions for handheld devices • Three Case • Only an image transmitted • Small modeling tool synchronize with PC • Provide a discussion environment

17. CoolCom • Windows CE • PersonalJava 1.1 • Synchronize with CoolMode • Three characteristics • Partial Data • Free-hand Input Only • Reduced background image

18. Cool Modes ME • Cool Modes Mobile Edition in SaveJe • Java Based Operating System • Java Version 1.3 • Just Need One PC • Allow Student exchange ideas

19. C-Notes • Server • PC with MySQL • Client • PDA • C-Pen • Java Database Connectivity (JDBC) • Cell Phone • PC

20. Conclusions and futures • With/Without Deep sharing of data model • Different I/O functionalities • Worthwhile to look for pen-based device with bigger display and similar portability

21. Thank you