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18 October 2007

Representations. Scott Klemmer ta s: Marcello Bastea-Forte, Joel Brandt, Neil Patel, Leslie Wu, Mike Cammarano. 18 October 2007. The Oranges Puzzle. goal Order the oranges by size: largest-to-smallest, left-to-right rule 1 Only one orange can be transferred at a time

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18 October 2007

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  1. Representations Scott Klemmertas: Marcello Bastea-Forte, Joel Brandt,Neil Patel, Leslie Wu, Mike Cammarano 18 October 2007

  2. The Oranges Puzzle goal Order the oranges by size: largest-to-smallest, left-to-right rule 1 Only one orange can be transferred at a time rule 2 An orange can only be transferred to a plate on which it will be the largest rule 3 Only the largest orange on a plate can be transferred to another plate

  3. The Donuts Puzzle goal Order the donuts by size: largest-to-smallest, left-to-right rule 1 Only one donut can be transferred at a time rule 2 A donut can only be transferred to a peg on which it will be the largest rule 3 Only the largest donut on a peg can be transferred to another peg

  4. The Coffee Cups Puzzle goal Order the coffee cups by size: largest-to-smallest, left-to-right rule 1 Only one cup can be transferred at a time rule 2 A cup can only be transferred to a plate on which it will be the largest rule 3 Only the largest cup on a plate can be transferred to another plate

  5. What Did We Learn? goal Order the coffee cups by size: largest-to-smallest, left-to-right rule 1 Only one cup can be transferred at a time rule 2 A cup can only be transferred to a plate on which it will be the largest rule 3 Only the largest cup on a plate can be transferred to another plate

  6. thinking through doing Learning Through Doing

  7. Let’s play a card game! Two players One the table, there are nine cards, numbered 1 to 9 Players draw alternately The objective is to make a “book” – a set of 3 that adds to 9

  8. How ‘bout Tic-Tac-Toe?

  9. These Games are Isomorphs 4 9 2 3 5 7 8 1 6

  10. Problem Solving as Representation “Solving a problem simply means representing it so as to make the solution transparent” —Herbert Simon, The Sciences of the Artificial

  11. thinking through doing Epistemic Action

  12. Working Memory

  13. Getting Things Done

  14. A Good Representation… …shows all of the relevant information, and nothing else. Should enable: Comparison Exploration Problem solving

  15. visibility Invisibility

  16. CsikszentmihalyiClassroom Study

  17. Attention, Stress, and Risk HIGH Performance LOW Attentional Load LOW HIGH

  18. example Smart Cars Anti-lock Brakes Traction & Stability Control Automatic Cruise Control Lane-keeping systems

  19. Risk

  20. risk Tradeoffs LOW RISK HIGH RISK Convergent Thought Concentration/ Commitment Exhilaration Forced to Act Divergent Thought Exploration/Simulation Safety/Playfulness Freedom to Act

  21. risk Commitment

  22. risk Social Cost

  23. risk Pain

  24. buxton Chunking

  25. Announcements Assignments are due at 11am cs547 tomorrow: Ed Chi, PARC – Augmented Social Cognition

  26. Further Reading Don Norman, Things that Make Us Smart Ed Hutchins, Cognition in the Wild Herbert Simon, Sciences of the Artificial Ed Hutchins, How a Cockpit Remembers its Speed Herbert Simon, Why a Diagram is (Sometimes) Worth 1000 words

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