1.1. *Learning is acquired through observation and reinforcement.
1.2. In relation to language acquisition : Language was considered a set of habits, aquired and refined through conditioning.
1.3. Theory Contributionists: Watson, Skinner
2. Nativist
2.1. Humans are born with an innate predisposition to learn language. Language is "hardwired" into the brain.
2.2. Theory contributionists: Chomski
3. Interactionist
3.1. Language development occurs when children are engaged in social interaction with adults modeling.
3.2. The child is able to scaffold his language learning
3.3. Theory contributionists: Jerome Bruner
4. Cognitive Developmentalist
4.1. Knowledge is acquired through moving through a number of stages, each with it's own "challenge".
4.2. In relation to language acquisition : a new piece to the puzzle of language acquisition must be acquired in order to move forward and gain the next piece, each part building on the last.