Timeline of child language development:

0-2 months - biological noises

2-5 months - cooing and laughing

5-8 months - vocal play

6-12 months - babbling

9-18 months - melodic utterance

12 - 18 months - the holophrastic stage

• single word utterances

18-24 months - two word stage

• 50+ words

• starting to string words together

2-3 years - telegraphic stage

• string together 2,3,4,5+ words

• lack of function words

• mainly content words like nouns

around 3 years - pre-school years

• langauge starts to dramatically change

• start to use conjunctions

• not fluent yet and so they tend to repeat themselves and find it hard to form whole sentences