Each stage of development requires that certain tasks are mastered. Piaget, a psychologist and father, observed his own children and identified the following milestones to be achieved in the baby years:
* Through the first two years in a baby’s life it is important to integrate perception and action. Babies learn how to use visual, auditive and tactile inputs to direct their grabbing and walking.
* During this period the baby starts to form the concept of object permanence. This refers to the fact that the child will keep on looking for a toy even if they cannot see it anymore.
* Children learn to imitate and copy others. This means that a child develops symbolic thought.
