Answer:
preoperational
Step-by-step explanation:
Adam’s Mom cuts his piece in half saying: “There, Adam, now you have two pieces!” This worked. Adam is now happy. Adam is in the preoperational Piagetian Stage. This period takes place in children from 2 to 7. During this stage, children cannot manipulate information with their developing mental abilities. This example illustrates that Adam does not understand conservation yet.