-
Period: to
3 Months
The infant will vocally respond to the person talking to them, which shows acknowledgment of language being used. -
Period: to
8 Months
Infant begins showing intentions with gestures and now consciously tries to influence other people to do or give them what they want. -
Period: to
12 Months
At one year old, the child may speak their first word. These single words replace the gestures previously used. -
Period: to
18 Months
The infant will begin to combine words into simple utterances based on word order. Their utterances are predictable at this stage. -
Period: to
2 Years
The toddler will begin using bound morphemes when they speak, such as adding an -s on the end of cat to make cats. -
Period: to
3 Years
The toddler now has a mean length of utterance of 3.0-3.3 (compared to 1.6-2.2 the year before), and can produce more adult-like language. -
Period: to
4 Years
The mean length of utterance now can range from 3.6 - 4.7 morphemes and the child fits their language to their conversational partner. -
Period: to
5 Years
Now, ninety percent of the language form is learned, the child has an unconscious grasp on complex grammar rules. -
Period: to
6 Years
The child begins learning reading and writing. -
Period: to
Adolescence
Can fully communicate and has learned all language forms including figurative language, and will use a "genderlect" when speaking.