First language acquisition in milestones:
Language acquisition in a bilingual setting in children and metalinguistic awareness in children
After birth: Different forms of communication: Screaming, crying, ‘mooing’
6 months: ‘Babbling’, more languagelike sounds (bababa, dada, mamama)
11-16 months: Usage of words, simultaneous to babbling (individual point in time for each child when the usage of words exceeds the usage of babbling)
2 years: Phonological progress, pronunciation differences occur (substitutions, deletion, simplification)
Syntax progress, sentence structure changes (from one-word sentences to combination of words and more complex sentence structures)
Morphology progress, children learn word classes and different word forms, this progress follows a certain pattern (e.g. content words develop more quickly than articles).
Later in childhood: Pragmatics progress, understanding beyond literal meaning. “A child in learning a first language must learn to go beyond the literal meaning of utterances to understand the pragmatic force” (Gass & Selinker, 2008).