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Teaching Nanotechnology Using Haptics

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This document describes research on developing a haptic virtual environment to teach nanotechnology concepts to visually impaired students. Key points: - Traditional teaching methods rely on diagrams which are difficult for visually impaired students to understand and do not engage students. Haptics can provide interactive multi-sensory exploration. - Researchers created learning modules using a low-cost haptic device to teach concepts of size and scale by zooming in on familiar objects, and dominant forces at the nanoscale. - Preliminary results showed extremely positive reactions from students tested at various education levels. Future work will validate the approach using cognitive and affective measures compared to vision alone and traditional teaching methods.

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2009 ASEE Annual Conference and Exposition Development of a Nanoscale Virtual Environment Haptic Interface for Teaching Nanotechnology to Individuals who are Visually ImpairedDianne Pawluk1, Curtis Taylor2, Marcia Hoffman1 and Maria McClintock11Dept. of Biomedical Engineering, Virginia Commonwealth University2Dept.of Mechanical and Aerospace Engineering, University of FloridaVCUWith support from the National Science Foundation
22009 ASEE Annual Conference and Exposition 2Outline of PresentationWhat is haptics?Motivation for using haptics to teach nanotechnologyBackgroundLearning ModulesPreliminary ResultsFuture Plans
3Traditional Teaching of Abstract Science and Nanotechnology2009 ASEE Annual Conference and Exposition Traditional methods of teachinglectures
rely on 2-D diagrams or display
poor engagement of students
difficult to conceptualize
more difficult for visually impairedmaterialstructureatomic structureNew methods needed to increase engagement and perceptionmolecular machine3
4What is haptics?2009 ASEE Annual Conference and Exposition The combination of:Perception of forces and positionSense of touch4
5Why Nanotechnology, Why Haptics?2009 ASEE Annual Conference and Exposition Governments, educators and researchersFuture demand for employeesDiversityeducate, attractStudents who are blind or visually impairedNo one can see what goes on at the nanoscalePictures are not very intuitive in describing forcesinclusiveness, opportunitySighted studentsConsiderable portion haptic learnersengaged, interestThe first atomic force microscope5
62009 ASEE Annual Conference and Exposition Virtual Reality System with Hapticsfor a wide range of ages, compare to something familiar
include individuals who are blind or visually impaired, sonification6
72009 ASEE Annual Conference and Exposition State-of-the-art in HapticsHapticstraining

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Teaching Nanotechnology Using Haptics

  • 1. 2009 ASEE Annual Conference and Exposition Development of a Nanoscale Virtual Environment Haptic Interface for Teaching Nanotechnology to Individuals who are Visually ImpairedDianne Pawluk1, Curtis Taylor2, Marcia Hoffman1 and Maria McClintock11Dept. of Biomedical Engineering, Virginia Commonwealth University2Dept.of Mechanical and Aerospace Engineering, University of FloridaVCUWith support from the National Science Foundation
  • 2. 22009 ASEE Annual Conference and Exposition 2Outline of PresentationWhat is haptics?Motivation for using haptics to teach nanotechnologyBackgroundLearning ModulesPreliminary ResultsFuture Plans
  • 3. 3Traditional Teaching of Abstract Science and Nanotechnology2009 ASEE Annual Conference and Exposition Traditional methods of teachinglectures
  • 4. rely on 2-D diagrams or display
  • 5. poor engagement of students
  • 6. difficult to conceptualize
  • 7. more difficult for visually impairedmaterialstructureatomic structureNew methods needed to increase engagement and perceptionmolecular machine3
  • 8. 4What is haptics?2009 ASEE Annual Conference and Exposition The combination of:Perception of forces and positionSense of touch4
  • 9. 5Why Nanotechnology, Why Haptics?2009 ASEE Annual Conference and Exposition Governments, educators and researchersFuture demand for employeesDiversityeducate, attractStudents who are blind or visually impairedNo one can see what goes on at the nanoscalePictures are not very intuitive in describing forcesinclusiveness, opportunitySighted studentsConsiderable portion haptic learnersengaged, interestThe first atomic force microscope5
  • 10. 62009 ASEE Annual Conference and Exposition Virtual Reality System with Hapticsfor a wide range of ages, compare to something familiar
  • 11. include individuals who are blind or visually impaired, sonification6
  • 12. 72009 ASEE Annual Conference and Exposition State-of-the-art in HapticsHapticstraining
  • 13. surgery, flying aircraft, etc.
  • 15. teachingPhantom (> $10,000)SideWinder (< $50)Novint Falcon affordableforce feedback device, with position information
  • 16. easily replicated in a classroom
  • 17. allows for interactive, multi-sensory exploration of nanoscale concepts for sighted and visually impairedNovint Falcon (< $200)7
  • 18. 82009 ASEE Annual Conference and Exposition What are the big ideas in nanotechnology?1. Size and Scale2. Dominant Forces3. Structure of matter4. Instrumentation5. Nanomachines6. Nanoscale FabricationScienceEngineering8
  • 19. 9Module 1: Size and Scale2009 ASEE Annual Conference and Exposition Understanding of size continuum helps understand matter and materialsIdea: controllably “zoom in” on objects that are familiarImplementationrepresent objects at different scales by gray-scale imagesintensity = heightgraphicstriangular tesselation in openGLHapticsF = kvirtual* dpenetration9
  • 20. 10Module 2: Dominant Forces2009 ASEE Annual Conference and Exposition Properties of matter change with scaleMacroscale gravity
  • 22. adhesion forces (electrostatic, capillary, etc.)force10
  • 23. Preliminary ResultsFor Teaching Nanoscale Science and EngineeringTouching AtomsInteractive NanofabricationUnderstanding Atomic PotentialsFalcon Force-Feedback Controller
  • 24. 12Conclusion2009 ASEE Annual Conference and Exposition Developed new haptic-based, interactive simulations to teach abstract science and nanotechnology concepts
  • 25. Developed learning modules to teach concepts of
  • 26. size and scale
  • 28. Demonstrated to prototype to elementary school, undergraduate and graduate students
  • 30. Will validate using:
  • 33. compare to: vision alone and traditional methods 12