1. First Language
1.1. Behaviorist Theory
1.1.1. B.F. Skinner
1.1.1.1. Positive reinforcement
1.1.2. 1940s and 50s
1.1.2.1. Learn by imitation
1.2. Innatist Perspective
1.2.1. Noam Chomsky
1.2.1.1. Innate ability
1.2.1.2. Prewired to learn language
1.2.2. 1959
1.3. Not Innate
1.3.1. Everett
1.3.2. Human cultural invention
1.3.2.1. Communicate via human brain
2. Second Language
2.1. Sociocultural Theory
2.1.1. Atkinson
2.1.1.1. Speaking
2.1.1.2. Collaborating
2.1.1.3. Interaction
2.1.2. 2011
2.2. Behaviorism
2.3. Innatist Perspective
2.4. Cognitive/Developmental Perspective
2.4.1. What's Happening inside the brain
2.4.2. 1940's to 1970's
2.5. Monitor Model
2.5.1. Acquisition-Learning Hypothesis
2.5.1.1. Subconscious Process
2.5.2. Natural Order Hypothesis
2.5.2.1. Predictable Order
2.5.3. Monitor Hypothesis
2.5.3.1. Inspect and Correct
2.5.4. Input Hypothesis
2.5.4.1. Understand Things we hear and read
2.5.5. Affective Filter Hypothesis
2.5.5.1. Controls How Much input gets Through
2.5.6. Krashen