-
Birth - 1month
"Communicates primarily by crying and fussing at this stage". "Reacts to loud noises by blinking, moving, stopping a movement, shifting eyes about, or exhibiting a startle response". -
4-8 months
"Babbles by repeating the same syllable in a series: ba, ba, ba". "Imitates some nonspeech sounds such as coughing, tongue clicking and lip smacking". -
1-4months
"Laughs out loud. Coos, using single vowel sounds(e.g., ah, eh, uh)". "Babbles or coos when spoke to or smiled at". -
24 months
"Utters three-and-four word statements. Refers to self as "me" or sometimes "I" rather than by name". -
3-5 Years old
"Talks about the actions of others: Daddy's mowing the grass". "Uses prepositions on, in and under correctly for the most part". "Tells a familiar story while looking at pictures in a book". -
6-8 years old
"Carries adultlike conversations; asks may questions". "Engages in storytelling; likes to write short stories and tell imaginative tales". "Uses language to criticize and compliment others; repeats slang and curse words". -
9-10 year olds
"Finds humor in using illogical metaphors (plays on words) in jokes and riddles". "Understands and uses language as a system for communicating with others". -
Period: to
8-12 months
"Responds by looking for the source of the voice when their name is called". "Says "da-da" and "ma-ma"