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Lecture 9

Lecture 9

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Eileen Wood

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Lecture 9 • So how to you solve the problem? o Algorithm  Formulas or procedures (step-by-step) that automatically generate correct solutions  E.g. mathematically and chemical formulas, sequenced routines.  Cost: may be time consuming. o Heuristic- “rule of thumb”, strategies.  General Problem- solving strategies that we apply to certain classes of situations  Mental short cuts  Lotto ticket example- same probability of picking any numbers even if they are in order. • So what makes it possible for you to solve the problem? o Hierarchical  Subroutines- allocating resources  Automatic processes • Testing your automatic processing o The stroop effect o See coloured disks o Say out the colour you see- row 1 left to right, then row 2 • Stroop effect- we are fully automatized (saying different coloured words) o You will see a decline in activity because of this • Problems in problem solving: o Mental set: stay with one approach to the problem o This is what happened with the last two sets of volume problems o Functional Fixedness  Fixed
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