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Lecture

Lecture Notes with Powerpoint References


Department
Psychology
Course Code
PSYA02H3
Professor
John Bassili

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Chapter 12 Life Span Development January 31
Piaget Recap from Last Lecture
Jean Piaget focused the ages from birth to 16
He focused on cognitive development
Babies make circular motions; they do not know if objects are out of sight, they think the
objects don’t exist (object permanence)
Piaget’s Preoperational Period
From ages 2-7, preoperational period occurs
Children are able to use symbolic thoughts such as numbers
Children are able to use the imagination to play (i.e. dressing up, symbolic)
Children see the world in an egocentric way during this period (i.e. cannot put oneself in
another’s perspective)
Conversation in Preoperational Period
A limitation to what a child can do during this period is the inability to conserve
A child thinks a tall container contains more liquid than the shorter container, although
they’ve seen that the liquid were of the same volume before being poured in the
containers (irreversibility)
Irreversibility refers to the thought process of reversing an action (squishing playdoh and
thought of reversing it back to original shape)
Piaget’s Concrete Operations Period
From ages 7 to 11, this period is called the concrete operations period
Children are now able to notice things such as irreversibility (no longer having difficulty
with conservation)
Operations refer to mental actions that obey logical rules
Transitivity is the operation required to answer questions such as Jane is taller than Kim
and Kim is taller than Sue, who is tallest?”
As the long as things are concrete, problems could be solved (i.e. using objects, or
people; not getting involved with symbols)
Children noticed that just because the playdoh was flattened, it wasn’t the same size
Piaget’s Formal Operations Period
Children being able to think abstractly (mathematical thinking)
Different behaviours have different consequences in different contexts
Abstract thought is not thought of the same way in different cultures
If people had no thumbs?” is an abstract question
Adolescence is able to answer these questions using abstract thoughts
As children grow they develop better cognitive skills
Assimilation and Accommodation
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