Bronfenbrenner came up with view that the child develops within a complex system of relationships affected by multiple levels of the surrounding environment.
Microsystem - activities and interaction patterns in the child's immediate surroundings. Behavior is bidirectional.
Mesosystem - connections between the microsystems, such as home, school, neighborhood, day care - places that includes children.
Exosystem - social settings that do not contain children but still affect children's experiences in immediate settings, such as parents' workplace, health services, extended family, friends.
Macrosystem - cultural values, laws, customs and resources.
Bronfenbrenner believed that the environment is not a static force that affects children in a uniform way, it is ever-changing. Children are products and producers of their own environment. This idea is known as chronosystem.