What "milestone"should be met by 4 years in language development?
- 200 word expressive vocabulary
- 400 word receptive vocabulary
- grammatically correct sentences
- 95% of speech is understood by others
What "milestone"should be met by 4 years in language development?
- 200 word expressive vocabulary
- 400 word receptive vocabulary
- grammatically correct sentences
- 95% of speech is understood by others