-
Period: to
0-2 years
Direct sensory and motor contact. lack of object permamanence in early infancy, develops in toddler stage. Separation anxiety develops -
Period: to
2-6 years
Child uses pretend play. The child is egocentric. The child words and images to respresent things and cannot yet reason logically. -
Period: to
7-12 years
The child understands conservation and can think logically. They no longer act in pretend play. -
Period: to
12 years- adulthood
The adolescant can reason, think abstractly, think hypothetically, logically, and fully understands conservation