Introduction The ecological systems theory was developed by renowned scholar Urie Bronfenbrenner. The theory argues that development should be viewed as a socio-cultural phenomenon shaped by a number of systems containing, factors that shape development. The theory identifies five systems that contribute to development as direct social inputs and also greater cultural influences (Bronfenbrenner, 1981). The systems include the microsystem, the mesosystem, the exosystem, and macrosystem. The microsystem is basically the setting in which the individual lives and includes family, peers, school, and neighborhood. Most research is done on this system as the individual has the most direct interaction with the social agents of development and actively participates in constructing these settings. The mesosystem involves the interaction of two microsystems; they may be for example family to church or school to peers. The exosystem is the interaction whereby the individual does not play an active role in forming the setting but is nevertheless directly affected the system. The macrosystems, on the other hand, revolve around the culture of the people among which the individual dwells. More recently developed is the chronosystem which looks at the way in which the environment of the individual changes and affects their development over time in their lives. Examples of these may include the effects of time or important events or socio-historical events that might occur in the individual’s life (Bronfenbrenner, 1981). This paper will attempt to illustrate ecological theory. Overview I chose to recognize and implement the cultural and social components necessary to construct a convincing argument that utilizes the foundations of the Ecological Theory to confirm its validity by using two individuals as illustrations. I chose a 13-year-old female (Sarah) with Cerebral Palsy, Mental Retardation, and Obsessive-Compulsive Disorder. She interacts with others by using sign language and typing on the computer. She attends Jenks Middle School in Jenks, OK. She lives with her mother and step-father. Her biological father has very little to do with her and her mother believes it has to do with her disabilities. She loves surfing the Internet, swimming with assistance and watching television especially the food network channel. Sarah can utter a few words but you have to really listen to understand what she is saying. She has an older brother (17) and a younger brother (5); the younger brother picks on her a lot because I don’t think he understands why she can’t communicate and play like other children. The second individual is an older adult (Vernon) who is an 80-year-old male with Alzheimer’s disease, Congestive Heart Failure and just had a hip replacement. He is married; his wife is 75 years old and they live in an assisted living facility where she has to help with him 5-6 hours a day, seven days a week. In order to continue her social life, she is very active in the community. Vernon walks around their 2 bedroom apartment most of the time chanting; his wife says the only time he really sits still is when The Price is Right is on; otherwise, he is up and just shuffling around the apartment. Vernon’s wife has several