Ecological Systems Theory, also called Development in Context or Human Ecology theory, specifies four types of nested environmental systems, with bi-directional influences within and between the systems.

Contents 1 Overview 2 Bronfenbrenner's Ecological Theory 3 See also 4 References 5 Further reading

Overview

The theory was developed by Urie Bronfenbrenner Urie Bronfenbrenner was an Russian American psychologist, known for developing his Ecological Systems Theory, and as a co-founder of the Head Start program in the United States for disadvantaged pre-school children, generally regarded as one of the world's leading scholars in the field of developmental psychology Developmental psychology, also known as human development, is the scientific study of systematic psychological changes that occur in human beings over the course of the life span. Originally concerned with infants and children, the field has expanded to include adolescence and adult development, aging, and the entire life span. This field examines.

The four systems:

• Microsystem: Immediate environments (family Family denotes a group of people or animals affiliated by a consanguinity, affinity or co-residence. Although the concept of consanguinity originally referred to relations by "blood," anthropologists[who?] have argued that one must understand the idea of "blood" metaphorically, and that many societies understand 'family', school A school (from Greek σχολή , originally meaning "leisure", and also "that in which leisure is employed", "school"), is an institution designed to allow and encourage students (or "pupils") to learn, under the supervision of teachers. Most countries have systems of formal education, which is commonly, peer group A peer group is a social group consisting of people who are equal in such respects as age, education or social class. Members of a particular peer group often have similar interests and backgrounds, bonded by the premise of sameness. Howe