Smiles interactively
birth to 4 mo
Phonation: pre-cooing
birth to 2 mo
Primitive articulation: cooing
2-4 mo
Expansion: vowels, raspberries
4-6 mo
Canonical: syllables, sequences
6-10 mo
Gesture
by 9 mo
Listen selectively, including name
by 12 mo
Speech & Language 12-24 mo
Point to body parts & pictures Use 2 word phrases Understand 50 words, uses much less Express wants & needs Follow 1 step commands
Speech & Language 24-42 mo
Know colors Use 3-word phrases Ask questions Understand prepositions & conditionals Use pronouns Vocab boom to 100's of words Know about past & future Follow 2-step commands
Lift up head from prone
3 mo
Supports chest up on 2 hands in prone
4 mo
Balance on one arm & reach with other
5 mo
Roll supine to prone
6 mo
Sit unsupported
8 mo
Crawl & pull to stand
10 mo
Walk w/ support
12 mo
Walk w/o support
14 mo
Walk up stairs, both feet one 1 step
2 yr
Run 2yr
2 yr
walk up stairs alt feet, jump
3 yr
Pedal tricycle
3 yr
Go down stairs alt feet
4 yr
Hop on one foot
4 yr
skip/stand on 1 foot
5 yr