Lev Vygotsky discovered a Social Development theory that consists of three themes: Social Interaction, The More Knowledgeable Other, and Zone of Proximal Development. His first theme; Social Interaction, Vygotsky believed that social learning guides development. Vygotsky states how a child development "Appears twice: first, on the social level, and later on the individual level"(Vygotsky 1). The next level of Social Development is The More Knowledgeable Other. Throughout this level is when an individual believes he/she has a better understanding or a higher level of ability than the learner.
http://cadres.pepperdine.edu/omcadre6/BookProject/vygotsky.htm
The More Knowledgeable Other is a teacher, coach, or older adult but also can be peers, a younger person, or a computer. The last level of MKO is The Zone of Proximal Development. This level is the distance between a student's ability to perform a task under adult supervision or with peer combination and the students strength in solving problems independently. Lev Vygotsky wanted focused on the relationships between individuals and the socioculture background in which they act and interact in common experiences. Vygotsky states that humans use tools that grow from a culture. Connecting these tools in with his/hers life led to higher thinking skills.
http://www.learning-theories.com/vygotskys-social-learning-theory.html