First and second language acquisition

In the text it mentions that
understand the nature of language acquisition 1 and 2, compared and evaluated various aspects.

The Acquisition/ Learning Hypothesis

Krashen states that there are two ways for an adult to approach a second language:

"adults can (1) 'acquire', which is the subconscious way, through informal and implicit languages."

The Critical Period Hypothesis

Neurological Considerations

Psychomotor Consideration

Affective Considerations

Fossilization

Is used to label the process by which non-target norms become fixed in Interlanguage.

- age
-lack of desire to articulate communication pressure
-lack of opportunities

researchers have tried to explain how children progress from "no language"
to their mother tongue

However, in the acquisition of the second language, the process is more complicated since the students already have knowledge
of their first language.