The work of <em>Lev Vygotsky </em>has become the foundation of what has become Social Development Theory. His theories emphasize the fundamental role of social interaction in the development of cognition, as he believed that community plays a central role in the process of "making meaning". In other words, social learning tends to precede development.
A Third World country is an outdated and offensive term for a developing nation characterized by a population with low and middle incomes, and other socio-economic indicators.