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Refraction State Space Diagrams: Illuminating Student Learning Pathways

Visualize all states in a learning system, transitions, successful and unsuccessful student pathways in Refraction game. Study student trajectories, productive paths, rare ones, and provide hints based on paths.

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Refraction State Space Diagrams: Illuminating Student Learning Pathways

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Presentation Transcript

  1. Week 6 Video 4 Visualization State Space Networks

  2. State Space Diagrams • Visualizations of all the states that the learning system can have during a problem • State = complete characterization of the situation • Also referred to as student learning pathways or interaction networks

  3. State Space Diagrams in Refraction • http://play.centerforgamescience.org/refraction/site/ • Martin, T., Aghababyahm A., Pfaffman, J., Olsen, J.,Baker, S., Janisiewicz, P., Phillips, R., Smith, C.P. (2012) Nanogenetic Learning Analytics: Illuminating Student Learning Pathways in an Online Fraction Game. Proceedings of the 3rd International Conference on Learning Analytics and Knowledge, 165-169.

  4. State 1 (Refraction)

  5. State 2 (Refraction)

  6. State 3 (Refraction)

  7. Transitions between states

  8. Can show single student trajectories

  9. Successful student (Martin et al., 2012) Success state

  10. Unsuccessful student (Martin et al., 2012) • Student goes back and forth endlessly between a small number of states…

  11. Can be used to show all paths, and for more complex systems… Johnson, M., Eagle, M., Stamper, J., Barnes, T. (2013) An Algorithm for Reducing the Complexity of Interaction Networks. Proceedings of the 6th International Conference on Educational Data Mining, 248-251.

  12. Start state Thicker lines = more students Success states

  13. Uses • Study specific student trajectories • See which paths end up being productive • See which paths are rare (despite being productive) • Make recommendations (hints) to students based on their path (Stamper, Barnes, & Lehmann, 2008)

  14. Next lecture • Other visualizations of educational data

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