| Child's Age |  Mastered Skills (most kids can do) |  Emerging Skills (half of kids can do) |  Advanced Skills (a few kids can do) | 
| 7 months | • Sits without support • Drags objects toward herself | • Lunges forward or starts crawling • Jabbers or combines syllables • Starts to experience stranger anxiety | • Waves goodbye • Stands while holding onto something • Bangs objects together • Begins to understand object permanence | 
| 8 months | • Says "mama" and "dada" to both parents (isn't specific) • Passes objects from hand to hand | • Stands while holding onto something • Crawls • Points at objects • Searches for hidden objects | • Pulls self to standing, cruises • Picks things up with thumb-finger pincer grasp • Indicates wants with gestures | 
| 9 months | • Stands while holding onto something • Jabbers or combines syllables • Understands object permanence | • Cruises while holding onto furniture • Drinks from a sippy cup • Eats with fingers • Bangs objects together | • Plays patty-cake and peek-a-boo • Says "mama" and "dada" to the correct parent | 
| 10 months | • Waves goodbye • Picks things up with pincer grasp • Crawls well, with belly off the ground | • Says "mama" and "dada" to the correct parent • Indicates wants with gestures | • Stands alone for a couple of seconds • Puts objects into a container | 
| 11 months | • Says "mama" and "dada" to the correct parent • Plays patty-cake and peek-a-boo • Stands alone for a couple of seconds • Cruises | • Understands "no" and simple instructions • Puts objects into a container | • Says one word besides "mama" and "dada" • Stoops from standing position | 
| 12 months | • Imitates others' activities • Indicates wants with gestures | • Takes a few steps • Says one word besides "mama" and "dada" | • Walks alone • Scribbles with a crayon • Says two words besides "mama" and "dada" |