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9 Cards in this Set
- Front
- Back
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At birth |
infants can distinguish all contrasting sounds in all human languages; this ability is lost within the first 6 months of life |
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0-4 months |
Can tell the difference between speech sounds (phonemes). Cooing, especially in response to speech |
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4-6 months |
Babbles consonants |
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6-10 months |
Understands some words and simple requests |
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10-12 months |
Begins to use single words |
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12-18 months |
Vocabulary of 30-50 words (simple nouns, adjectives, and action words) |
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18-24 months |
two-word phrases ordered according to syntactic rules; vocabulary of 50-200 words; understands rules |
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24-36 months |
vocabulary of about 1,000 words; productions of phrases and incomplete sentences |
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36-60 months |
vocabulary grows to more than 10,000 words; production of full sentences; mastery of grammatical morphemes (such as -ed for past tense) and function words (such as the, and, but) Can form questions and negations |
