The belief, often observed among adolescents, that one cannot be harmed by things that would hurt most people is referred to as:

While being dressed for bed, 7-month-old Darnell picked up new baby’s comb that his mother just bought for him. Darnell had never seen this before and didn’t know how it was used, so he tried to put it in his mouth. Piaget might say that Darnell was

A dialectical thinker is likely to recognize the:

A 15-year-old girl realizes that the dress she has worn to school has a small stain on it. Her belief that everyone will notice it is an example of:

A 5-year-old watches a puppet show where Puppet A puts a ball in a red box and leaves. Puppet B moves the ball to a blue box. When asked where Puppet A will look for the ball first, the child says, “In the red box.” Successfully answering this question demonstrates the child’s understanding of:

When a child encounters a new concept that she cannot fit into her current understanding, she experiences a state of internal conflict that motivates her to modify her cognitive frameworks. This state of imbalance is referred to by Piaget as:

7-year-old Aisha is working with clay in art class, and she rolls a round ball of clay between her hands until it becomes a long rope of clay. However, she decides that she doesn’t want the rope of clay, but would prefer that the clay is in the shape of a ball again. Aisha knows that this is possible. Piaget would say that Aisha is demonstrating the knowledge of

The adult thinking process in which every idea implies an opposite idea, and both the idea and its opposite can be integrated into a synthesis is referred to as:

Jean Piaget and Bärbel Inhelder developed the three-mountains task to test children’s

Twenty-four-month-old Joey is visiting a theme park for the first time. At the park he sees some zebras, an animal with which he is unfamiliar. Despite this, he looks at the animals and shouts, “Look… horsey!” Clearly, Joey had previously formed a mental scheme for horses, but not one for zebras. Piaget would say that Joey’s reaction best demonstrates the concept of: