Milestone chart

每次会去看看柔柔在这时候，应该要学会什么。。。
我看到了这个chart

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 4 • Drags objects toward herself4	• Lunges forward or starts crawling4 • Jabbers or combines syllables4 • Starts to experience stranger anxiety 4	• Waves goodbye4 • Stands while holding onto something x • Bangs objects together x • 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"