Your niece loves to play peek-a-boo. the way that you like to play is to put your blanket over your face and after a few seconds
abruptly remove the blanket. each time that you remove the blanket, your niece acts like she is very surprised to see you. according to piaget, what concept does your niece lack?
Object permanence refers to the ability to understand that an object is still present and physically exists even if it is hidden out of sight. In this example, your niece lacks object permanence since she does not understand that you are behind the blanket even though you cover yourself with it or you are temporarily.
