Chemic able

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ChemicAble is an interactive tabletop interface that helps students of grade 8-10 understand ionic compound formation. It acts as an exercise tool for students to understand better the concepts of ionic bonding by letting them explore and learn. It has first 20 elements of the periodic table being represented by 20 hemispherical tokens (atoms). Lewis dot structure which is being taught in these classes, formed the basis of our instructional content for the prototype.

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Chemic able

  1. 1. Tangible Interaction Approach for learning Chemical Bonding ChemicAble
  2. 2. Current system of teaching chemistry Alternative Methods of Teaching ChemicAble System design considerations How it works Discussion
  3. 3. Current way of teaching chemistry in India
  4. 4. Lewis structure forms the base for understanding the concept of electron transfer for students of grade 8 and 9 in India.
  5. 5. Formation of NaCl by lewis dot structure
  6. 6. Current way of teaching chemistry in India
  7. 7. The task of understanding the Lewis model and the electron transfer with the help of just text and figures is a really herculean one for kids.
  8. 8. Lets take a look at alternative methods of teaching
  9. 9. Manipulating physical objects supports and develops thinking in children and hence tangible user interfaces might bring about expedited natural learning. - Piaget’s developmental theory Piaget, J. The language and thought of the child. Psychology Press, 1998
  10. 10. Tangible User Interfaces
  11. 11. Analytic framework on tangibles for learning Paul Marshall (2007). Do tangible interfaces enhance learning? In proceedings of TEI'07, 163-170
  12. 12. AC system with back-projection screen The rotation cube is operated with the right and while the constructed molecule sits on the center platform Augmented Chemistry - Tangible User Interface for Chemistry Education Fjeld, M., Fredriksson, J.,Ejdestig, M., Duca, F., Bötschi, K.,Voegtli, B., Juchli, P. (2007). Tangible User Interface for Chemistry Education: Comparative Evaluation and Re-Design, proceedings of CHI’07, 805-80
  13. 13. First-person perspectives of the interface Usability test with pupils from secondary school Chemieraum - Tangible Chemistry in Exhibition Space Gläser, T., Franke, J., Wintergerst, G., Jagodzinski, R. (2009). Chemieraum - Tangible Chemistry in Exhibition Space, Proceedings of TEI’09, 285-288
  14. 14. Concept of the Mixed Object - A MO pipette where the top is physical and squeezable, and where the bottom is a graphical representation of a glass tube Use of CheMO and detailed interactions CheMO: Mixed Object Instruments and Interactions for Tangible Chemistry Experiments Song, K., Kim, G., Han, I., Lee, J., Park, J., Ha, S. (2011). CheMO: Mixed Object Instruments and Interactions for Tangible Chemistry Experiments, in proceedings of CHI 2011, 2305-2310
  15. 15. There hasn’t been any significant work done in this direction specifically for the Indian context.
  16. 16. We try to leverage the concept of Lewis dot structure taught to Indian students and build upon that to develop a system particularly relevant for the Indian education system. There hasn’t been any significant work done in this direction specifically for the Indian context.
  17. 17. Introducing
  18. 18. ChemicAble
  19. 19. ChemicAble
  20. 20. A tangible user interface that helps children understand ionic compound formation.
  21. 21. A tangible user interface that helps children understand ionic compound formation. Exploratory in nature and promotes collaborative learning with fun.
  22. 22. A tangible user interface that helps children understand ionic compound formation. Exploratory in nature and promotes collaborative learning with fun. Interactive table-top interface in which first 20 elements of the periodic table are represented by 20 tokens.
  23. 23. Here is how it works
  24. 24. Here is how it works
  25. 25. Here is how it works
  26. 26. Here is how it works
  27. 27. Task Flow
  28. 28. System Design Consideration
  29. 29. For Indian students
  30. 30. Learning through exploration, trials and failure.
  31. 31. Collaboration
  32. 32. Proceed in small steps
  33. 33. Feedback
  34. 34. Basic Setup of ChemicAble
  35. 35. Aim of the testing was to observe and measure ease, engagement and understanding of the system for students of grade 8-10. 4 point likert scale was used in the questionnaire to be answered by the students and detailed observations were made. User Testing
  36. 36. Basic Setup of ChemicAble
  37. 37. Interaction with Dr. LN Gupta It was presented to Dr L.N. Gupta, the chemistry teacher at Kendriya Vidyalaya. He found it very useful and suggested addition of covalent and co-ordination compound formation to the system. He also suggested showing a real ionic compound formation visually as opposed to showing that just through text and colour based feedback. Discussion
  38. 38. Collaboration- Students enjoyed exploration and they grasped the method of interacting with the table better when in groups than when alone. Exercise Tool- Students used their prior knowledge of chemical bonding taught in class to figure out which atom to bring next. Discussion (positive points)
  39. 39. Display penultimate shell in metals Students found problems in deciding whether a metal had become stable or not. The cause for this was that only the valence shell of the atoms is displayed on the table. So when a metal loses electrons its valence shell becomes empty and the octet stability of its penultimate shell is not visible. Discussion (point for improvement)
  40. 40. Addition of covalent and co-ordination compound. Multi-modal feedback – accompanied by haptic and auditory response. Transfer dependent on proximity of atoms. Future Work
  41. 41. Thank You!! Department of Design, IIT Guwahati

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