2. Outline for Today
The acquisition-learning hypothesis
The natural order hypothesis
The monitor hypothesis
The input hypothesis
The affective filter hypothesis
3. What are the causative variables in
second language acquisition?
4. For you, does language teaching really
help? When does it help and when
does it NOT help?
8. The Natural Order Hypothesis
Grammar structures are acquired in a
predictable order
L2 learning order is different from L1 order
L2 learning adults and children show
similar order
9. ING (progressive)
PLURAL
COPULA (“to be”)
AUXILIARY
ARTICLE
IRREGULAR PAST
REGULAR PAST
SINGULAR (-s)
POSSESSIVE (-s)
The order for L2 learners (Krashen, 1977)
10. The Monitor Hypothesis
Acquisition has the central role
Learning functions as a Monitor
3 conditions needed to use Monitor
• Time
• Focus on form
• Know the rule
When Monitor is not used, errors are
natural
Pedagogically: study of grammar has a
place, but a limited one
11. The Input Hypothesis
We acquire by comprehensible input (i) + 1
Input Hypothesis relates to acquisition, not
learning
Focus not on structure but on understanding the
message
Do not teach structure deliberately; i+1 is
provided naturally when input is understood
Production ability emerges. It’s not taught directly
12. The Affective Filter Hypothesis
Motivation
Self-confidence
Anxiety
Lower affective filter will go further