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06-09-2018
Biology

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According to piaget, at what age will most children enter the concrete operations stage of cognitive development?
a.between the ages of 4 and 6
b.usually by age 2
c.by age 12
d.by age 7

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manuf012p2db64 manuf012p2db64

06-09-2018

d. By age 7, and until 11

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