The interaction hypothesis proposes that comprehensible input and negotiation for meaning during face-to-face interaction contributes to second language acquisition. There are two forms of the hypothesis: one that emphasizes comprehensible input and another that suggests interactions provide negative evidence and focus learner attention. While interaction may aid language learning, it is not absolutely necessary, and its role is complex as interactions are not always positive.

1. Interactional hypothesis

2. • The Interaction hypothesis ->
Second Language Acquisition
• by face-to-face interaction

3. •1980
•Michael Long

4. • There are two forms of the
Interaction Hypothesis:

5. • The interaction hypothesis claims
that comprehensible input is
important for language learning.
(increased when learners
have to negotiate
for meaning)

6. • Interactions often
result in learners
receiving negative
evidence.
• learners receiving
more input from their
interlocutors than they
would otherwise.

7. • interactions may serve as a way of focusing
learners' attention on a difference between
their knowledge of the target language and
the reality of what they are hearing

8. Primacy of interaction

9. Larsen-Freeman /
Long:
• interaction is not
necessary for
language acquisition
Gass and Selinker
• it may also
function as a
priming device

10. • Ellis notes that interaction
is not always positive
• The role of interaction in
language acquisition is a
complex one

11. Interactionist/developmental
perspectives
Cognitive and developmental
psychologists -> innatists place to
much emphasis on the ‘final
state’.

12. Developmental psychologists and psycholinguists
have focused on the interplay between the
innate learning ability of children and the
environment in which they develop.

13. • https://www.youtube.com/watch?v=HekZlFJ-
9Uc

14. Works Cited
• Ellis, Rod (1984). Classroom Second Language
Development: A Study of Classroom Interaction
and Language Acquisition. Oxford, UK: Pergamon.
• Long, Michael (1985). "Input and Second
Language Acquisition Theory". In Gass, Susan;
Madden, Carolyn. Input in second language
acquisition. Rowley, Mass: Newbury House.
• https://www.youtube.com/watch?v=HekZlFJ-9Uc