HD FS 229 Lecture Notes - Lecture 14: Dual Representation, Apache Hadoop, Egocentrism

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HDFS 229
Lecture 14
Piaget’s Stages of Development
Preoperational period
o2 – 7 years
oAchievements
Huge gains in mental representations
Language accelerates (vocabulary)
oWithout inner though/mental representations,
no language maturation
Make-believe play
oSociodramatic play
5 years of age
When two or more children are
coordinating imaginations together
Drawing
Dual representation
oViewing a symbolic object as both an object
and a symbol
Example:
Map: realizing it has information
oLimitations
Cannot perform mental operations
Mental representations of actions that obey logical rules
Egocentrism
oCannot take someone else’s viewpoint
3 Mountains Task
Big, medium, small
oDiorama
Two people on opposite sides
What does person on other side see?
Preoperational:
oThey see exactly same as what I see
Egocentric
Emotional:
See caregiver upset, give teddy bear for comfort
because it comforts them
oEgocentric
Cannot perform mental operations
Cannot conserve
Definition:
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