Developmental milestones

Question 1

1 month

Answer 1

decreasing flexion
tracks moving object
positive support & primary walking reflexes
hands fisted

Question 2

2 months

Answer 2

elevate head to 45 deg in prone/prone on elbows
head bobs supported sitting
doesn’t accept weight on LE

Question 3

3 months

Answer 3

prone on elbows better
head elevated to 90 deg
head midline in supine
increased back extension/scapular adduction
some weight on toes
coos, chuckles
optical & labyrinthine head-righting present

Question 4

4 months

Answer 4

rolls prone to side, supine to side
sits w/ support
bilateral reaching
ulnar-palmar grasp
laughs

Question 5

5 months

Answer 5

rolls prone to supine
weight shifting on forearms
head control supported sitting

Question 6

6 months

Answer 6

prone on hands w/ elbows extended
rolls supine to prone
independent sitting
pulls to stand

Question 7

7 months

Answer 7

quadruped

trunk rotation in sitting

Question 8

8-9 months

Answer 8

belly crawls/creeping
side-sitting
cruises sideways
radial digital grasp/3-jaw chuck/inferior pincer
transfer objects hand to hand

Question 9

10-15 months

Answer 9

begins to walk unassisted
self-feeding
reaches w/ supination & can release
plays peek a boo
imitates

Question 10

20 months

Answer 10

ascends stairs step to pattern
running
make-believe

Question 11

2 years

Answer 11

runs well
up stairs foot over foot
tantrums

Question 12

3 years

Answer 12

rides tricycle
jumps
kicks ball

Question 13

4 years

Answer 13

hops on one foot
throws ball overhand
friends

Question 14

5 years

Answer 14

skips
kicks ball well
dresses self