Problem Solving Flashcards
Analogical problem solving
Using a solution to a similar problem can aid solution to new problem
Analogical transfer
transfer from one source problem to another target) problem
Mutilated Checkerboard Problem
Duncker’s radiation problem
Person has cancer/tumor
Radiation can destroy it, but this will also kill healthy tissue
So, how do we cure the patient?
Solution: use low-intensity radiation beams at different angles and make them converge where you want them to
Gick and Holyoak– used radiation problem
Two groups: radiation problem only vs. reading analogous problem (“fortress story”) first
When told to remember fortress story: 75% solved
G&H proposed three steps in successful analogical transfer
Noticing relationship
Mapping correspondence between source and target
Applying mapping
what might facilitate noticing/mapping?
participants often focus on surface features (specific aspects of particular problem)
Best transfer will occur if underlying structural features are used
Holyoak and Koh
Invented “lightbulb” problem
Varied surface and source similarity to radiation problem (now used as source problem)
Result: greater surface or structural similarity improved target solution
Gentner and Goldin-Meadow
People have difficulty noticing structural similarities
Analogical encoding training: training to improve analogical transfer to problems with similar structural features
How experts solve problems
Better at noticing structural similarities
Solve problems faster and more accurately than beginners
Spend more time analyzing problems (trying to figure out structure)
BUT experts can also be more rigid
Gestalt problem-solving framework
how people represent a problem in their mind, and
how solving a problem involves a reorganization or restructuring of this representation
Insight
“Reorganization of a person’s mental representation” corresponds to restructuring
“sudden comprehension” corresponds to the Gestalt emphasis on suddenly realizing the problem’s solution
Metcalfe and Wiebe
distinguish between insight problems and noninsight problems
insight = not able to distinguish when you’re close to the answer
noninsight = more likely to know how close you are to solving problem because of methodical process
functional fixedness
focusing only on familiar functions or uses of an object
Luchins water jug problem
figure out on paper how to obtain a required volume of water, given three empty jars for measures
mental set can influence problem solving both because of preconceptions about the functions of an object (candle and two-string problems) and because of preconceptions about the way to solve a problem (water jug problem)
Mental set
A preconceived notion about how to approach a problem based on a person’s experience or what has worked in the past.