The answer is bronfenbrenner's bioecological approach.
The bronfenbrenner's bioecological approach is a method to study the human development over time and it comes under the educational psychology branch of science.It was developed by russian-american psychologist Urie Bronfenbrenner.He divided the person's environment into five different levels: the microsystem, the mesosystem, the exosystem, the macrosystem, and the chronosystem.