Five-year-old rajon is playing with his baby sister, andrea. he takes andrea’s teddy bear and hides it behind a pillow while she watches. andrea quickly finds the bear. then rajon puts teddy in a bag, dumps teddy behind a chair, and then brings out the empty bag. andrea looks inside the bag, is surprised when it’s not there but doesn't look for teddy behind the chair. according to piaget, andrea

A-not-B error

Explanation:

According to my research on studies conducted on child development, I can say that based on the information provided within the question according to Piaget, Andrea is committing the A-not-B error. This is defined by Piaget as an error in the mental perception of objects seen in infants before the age of one year.

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