2nd language acquisition

Nativist theory
Children’s language at any given point is systematic.;;Child is constantly forming their own hypotheses in speech and testing them.
How do children construct grammars?
They already at the age of 4 can apply rules for the formation of plural, present progressive, past tense, 3rd singular, and possessives.;WugWugs
Functional Approaches:
deals with meaning ; pragmatics
Forms approaches:
Structure: morphemes, words, sentences, and rules
All of Chomsky’s theories were first used in_______________.
1st language acquistion
Who said, “What children learn about language is determined by what they already know about the world?”
Piaget, 1969
Who demonstrated that in all languages, semantic learning depends on cognitive development?
Slobin, 1971, 1986