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Norman - Things that make us smart

1. one artifacts
2. representations:
1. “herein lie both the power and the weakness of representations: get the relevant aspects right, and the representation provides substantive power to enhance people's ability to reason and think; get them wrong, and the representation is misleading, causing people to ignore critical aspects of the event or perhaps form misguided conclusions.”
2. let you reason about things at a later time and place.
3. solving a problem simply meas representing it so as to make the slution transparent. (Simon, 1981)
1. example tic-tac-toe
2. example roman vs arabic numbers vs graphical representation

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