�The development of language proficiency acquisition is promoted by face to face interaction and communication.
�Two forms of the interaction hypothesis: Strong: the position that the interaction itself contributes to the language development. Weak: the position the interaction simply the way learners find opportunities, wheater or not they make productive use of them.
Dialogue �Leidy: Chi monyi gogo? �Oscar David: David �Leidy: Chui cuguo? �Oscar David: Mande yo go �Leidy: mande yii go �Leidy: Ma maño te go cuguo �Oscar David: Na be 28 años �Oscar David: Gusteita el futbol? �Leidy: Gustatan
�Oscar David: Mande yi go �Leiyd : leidy �Oscar David: chui cuguo? �Leidy: Yastao Silvia �Oscar David : Yastao Popayan �Oscar David: ungue �Leidy: ungua
�The effectiveness of the comprehensible input is greatly increased when learners have to negotiate for meaning Modification Checks-Do I need to word something differently? Should I paraphrase? Clarification Requests- When a learner does not understand a work being used, they ask for clarification. Confirmation Checks- When a learner reacts to a particular sentence, and utters a word or phrase that may be confusing in their second language. Slowing down the speech.
ADVANTAGES �Interlocutors may model the correct language form. The learners receive feedback on their production and on grammar �Learners receiving more input than the interlocutors �When learners stop to clarify something they do not understand, they may have more time to process the input they receive.