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Pushing the Envelope of Instructional Technology: Handheld Computers and Wireless Networks

http://aa.uncwil.edu/numina. Pushing the Envelope of Instructional Technology: Handheld Computers and Wireless Networks. Charles R. Ward Department of Chemistry University of North Carolina at Wilmington. Outline of Presentation. Historical Background Numina I

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Pushing the Envelope of Instructional Technology: Handheld Computers and Wireless Networks

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  1. http://aa.uncwil.edu/numina Pushing the Envelope of Instructional Technology: Handheld Computers and Wireless Networks Charles R. Ward Department of Chemistry University of North Carolina at Wilmington

  2. Outline of Presentation • Historical Background • Numina I • Brief Overview of Handheld PC • Classroom Use • Pocket PC vs. Handheld PC • Numina II • Pocket PC Applications • Conclusions

  3. Department of Chemistry Departments of Mathematics Department of Computer Science History of Project Numina I • Multi-disciplinary team that has been working together on technology projects since 1990. • The team predicted that small handheld computing platforms would be ubiquitous by 2003. • Funding obtained from Pearson Education and UNCW to explore the use of handheld computer technology for teaching science and mathematics.

  4. HP Jornada 720 Handheld Computers • StrongArm CPU: 206 MHz • 32 MB + 48 MB of RAM • WinCE (Word, Excel, PowerPoint, Explorer) • Hyperchem, FTP, SRS (SWATT), Textbook

  5. Cisco 340 Wireless Network • 802.11b Standards-based network • 150’ range around access point (indoors) • 11 Mbps throughput • Wireless access throughout entire building

  6. Handheld Computer Distribution • Computers distributed in class from carts • 32 computers on each cart with power supplies • The contents of each cart can be distributed and returned in under 6 minutes

  7. eBook Chemistry Textbook • Chemistry: The Central Science 8th Ed. • Prentice-Hall Publishers • HTML format – entirely editable

  8. eBook Chemistry Textbook • Fully illustrated • Recently added problems, appendices, links • Access to Prentice-Hall Web site

  9. GraphData: Graphing for Pocket Excel • Pocket Excel has no graphing capability • GraphData uses data copied to the clipboard from within Excel • The graphs from GraphData can be pasted into Pocket Word

  10. Pocket Hyperchem from Hypercube • Pen-based interface • MM+ and Semi-Empirical Calculations • Standard functions for general, inorganic, and organic chemistry

  11. Bond angle calculation General Chemistry • View and rotate molecules (pre-built) • Measure bond angles and bond lengths • View molecules in different renderings

  12. Organic and Inorganic Chemistry • Build molecules • Optimize geometries • Explore properties of molecules

  13. Organic Chemistry • Study the nature of the strain in methyl substituted cyclohexanes mono hexa

  14. Inorganic Chemistry • Generate the MO diagram for BF3 and study its Lewis acid-base chemistry

  15. Exercise #1Experimental group used Hyperchem to rotate molecules and measure bond angles

  16. Exercise #2Control group used the Jornadas to view this as a Web form in color, but with no rotation capability

  17. Sample Quiz Questions

  18. Results T-Test for Subtotal 1:X1AVG = 4.3 X2AVG = 3.7N1 = 65 N2 = 49t = 2.27 df = 112p (two-tail) = 0.025 VSEPR Questions

  19. Results T-Test for Subtotal 1:X1AVG = 4.3 X2AVG = 3.7N1 = 65 N2 = 49t = 2.27 df = 112p (two-tail) = 0.025 T-Test for Subtotal 2:X1AVG = 0.91 X2AVG = 0.94N1 = 65 N2 = 49t = -0.24 df = 112p (two-tail) = 0.810 VSEPR Questions Gas Law Questions

  20. SWATT: Student Response System • Interactive classroom questioning • Completely Web-based system • Student feedback is anonymous • Data are available for later analysis

  21. SWATT: Student Response Pad • Student view is synchronized with classroom view through the Web-based database • IP address of Jornada is used to prevent multiple responses to the same question • Student feedback is anonymous

  22. Numeric Response Graphic Response Confidence Response SWATT: Interfaces Under Development

  23. Which one of the following statements about a chemical reaction at equilibrium is correct? • The concentrations of reactants and products are equal. • The rates of the forward and reverse reactions are equal. • No more reactants are converted to products. • d) The concentrations of reactants and products change with time.

  24. Which one of the following statements about a chemical reaction at equilibrium is correct? • The concentrations of reactants and products are equal. • The rates of the forward and reverse reactions are equal. • No more reactants are converted to products. • d) The concentrations of reactants and products change with time.

  25. What is the half-life of the following first-order reaction? a) 2 s b) 10 s c) 5 s d) 20 s

  26. What is the half-life of the following first-order reaction? a) 2 s b) 10 s c) 5 s d) 20 s

  27. What is the value of the equilibrium constant (K) for this reaction? a) 9.0 b) 1.0 c) 0.90 d) 0.11

  28. What is the value of the equilibrium constant (K) for this reaction? a) 9.0 b) 1.0 c) 0.90 d) 0.11

  29. Pros and Cons of Each Platform • Keyboard • Size & Weight • Features of OS • Expandability • TFT LCD Display

  30. Pros and Cons of Each Platform • Handheld PC has backlit TFT display • Pocket PC has backlit / reflective TFT display • Pocket PC can be viewed in direct sunlight

  31. Project Numina II • Internal seed grant obtained to study the Pocket PC as an alternative to the Handheld PC. • Is it possible to do serious chemistry on a Pocket PC? • This depends on both thehardware and the softwarethat are available.

  32. Software Development for Numina II • Molecular Animator (states of matter, vapor pressure, phase diagrams, etc.) • Kinetics Simulator • Equilibrium Simulator • Data Analysis Module • Data Acquisition Software & Hardware

  33. The Ultimate Device? • Horizontally oriented Pocket PC with detachable keyboard.

  34. Project Funding Acknowledgements • National Science Foundation • Pearson Education • UNCW • College of Arts and Sciences • Division of Academic Affairs • Information Technology Systems Division

  35. Acknowledgements Collaborators • Department of Chemistry • Dr. Jimmy Reeves • Dr. David White • Dr. Barbara Heath • Ms. Jennifer Bishoff, Graduate Student • Ms. Rebecca Popovec, Undergraduate • Ms. Jenny Wright, Undergraduate • Ms. Gina Taylor, Undergraduate • Ms. Katy Magolan, Undergraduate

  36. Acknowledgements Collaborators • Mathematics and Statistics • Dr. Gabriel Lugo • Dr. Russ Herman • Ms. Valerie Kepley, Undergraduate • Computer Science • Dr. Ron Vetter • Mr. Steve da Silva, Undergraduate • Mr. Eli Weinstock-Herman, Undergraduate

  37. http://aa.uncwil.edu/numina

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