1) Solitary play: Child plays alone unaware of other children playing nearby, 2) Onlooker play: Child watches other children play, 3) Parallel play: Children play with similar toys in similar ways but not together, 4) Associative play: Children interact, observing each other and sharing, but their play is not yet mutual or reciprocal, 5) Cooperative play: Children play together, creating and elaborating a joint activity or taking turns.