Human Development Flashcards
normal weight gain from 0-3 months
20-30 g/day or 2 lbs/month
normal weight gain from 3-6 months
10-15 g/day or 1 lb/month
normal weight gain from 6-12 months
5-8 g/day or 0.5 lb/month
normal weight gain from 12-24 months
<0.5 lb/month or 5 lb/year
birth weight is doubled by this age
4-5 months
birth weight is tripled by this age
1 year
birth length doubles by this age
3-4 years
children reach half their adult height and 90% adult head size at this age
2 years
BMI starts at this age
2 years
BMI at risk for obesity
85th-94th percentile
BMI of obesity
> /= 95th percentile
Age that develops head control
2 months
Age that develops increased arm movement
4 months
Age that develops rolling from tummy to back
6 months
Age that develops sitting without support
9 months
Age that develops pulling to stand
12 months
Age that develops few independent steps
15 months
Age that develops climbing
18 months
Age that develops running
24 months
Age that develops opening hands briefly
2 months
Age that develops holding a toy when given
4 months
Age that develops using fingers to rake foods
9 months
Age that develops a mature pincer
12 months
Age that develops scribbling
18 months
Age that develops eating with a spoon
24 months
Developmental screening is performed during regular well child visits at these ages
9, 18, and 30 months
Screenings for autism occur at these ages
18 and 24 months
Age that: holds head up when on tummy, moves both arms and legs, Opens hands briefly
2 months
Age that:
Watches you as you move
Looks at a toy for several seconds
2 months
Age that:
Makes sounds other than crying
Reacts to loud sounds
2 months
Age that:
Calms down when spoken to or picked up
Looks at your face
Seems happy to see you when you walk up to her
Smiles when you talk to or smile at her (social smile)
2 months
Age that:
Holds head steady without support when you are holding her
Uses her arm to swing at toys
Brings hands to mouth
Pushes up onto elbows/forearms when on tummy
4 months
Age that:
Looks at his hands with interest
4 months
Age that:
Makes sounds like “ooh” and “aahh” (cooing)
Makes sounds back when you talk to him
Turns head toward the sound of your voice
4 months
Age that:
Smiles on his own to get your attention
Chuckles when you try to make him laugh
Looks at you, moves, or makes sounds to get or keep your attention
4 months
Age that:
Rolls tummy to back
Pushes up with straight arms when on tummy
Leans on hands to support himself when sitting
6 months
Age that:
Puts things in her mouth to explore them
Reaches to grab a toy he wants
Closes lips to show she does not want more food
6 months
Age that:
Takes turns making sound with you
Blows “raspberries”
Makes squealing noises
6 months