APPsychologyUnit9FRQ - Liz Parent 7th period Unit 9 FRQ...

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Liz Parent 7th period Unit 9 FRQ Jean Piaget studied cognitive development and created four stages that he believes every person goes through. These stages are the sensorimotor period, preoperational period, concrete operational period and formal operational period.The sensorimotor stage is the first stage and it goes from birth to around two years. During this stage, children use their senses to explore the world and begin to move around. At around 8 months, the child will learn object permanence, or the idea that even though an object is out of sight, it still exists. This stage is also marked by the onset of stranger anxiety, where the child is no longer immediately comfortable with strangers. Piaget’s second stage is called the preoperational period and he believes that during this stage children are too young to perform mental operations. This goes from two years old to about six or seven years old. During the stage, children are egocentric, meaning that they have difficulty seeing things from another person’s perspective. They also lack the concept of conservation, which is the principle that quantity remains the same despite changes in shape. The third stage is the concrete operational period and typically occurs through ages seven to eleven. During this
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