Krashen Monitor Theory

We acquire as we are respond to sample of the second language we understand in much the same way that children pick up their first language with no conscious attention to language of form

The aquired system initiates a speaker utterance and is responsible for spontatious language use

In first language aquisition, second language acquisition unfolds in predictable sequence. The language tha are easiest to state are not necessary the first to be aquired

Acquisition occurs when one is exposed to language that is comprehensible and that contain i+1

Metaphorical barrier that prevents learned form aquiring language even when appropriate input is available