- 3-5 wks: cooing (vowel sounds)-earliest production of lang (phonemes)
- 4-6 mos: babbling (syllables)
- 1 yr: 1st word
- 18 mos: 5-20 words (see sig vocab ^ in just 6 mos)
- 2 yrs: 250-300 words
- 3 yrs: 900-1000 words
- 6 yrs: 15,000 words!
a. The progression of lang acquisition slow down
b. Vocab steadily increases at about 10 words/month
c. The progression of lang acquisition increases dramatically.
d. The child begins to speak only in verbs