Milestone

Question 1

First 6 months - Weight Gain

Answer 1

Gain 5-7 oz (150-210 g) weekly

Question 2

First 6 months - Height Growth

Answer 2

Grows about 1 inch (2.5 cm) per month

Question 3

First 6 months - Head Circumference Growth

Answer 3

Increases by 1/2 inch (1.5 cm) per month.

Question 4

2 to 3 months - Fontanel Closure

Answer 4

Posterior fontanel is closed.

Question 5

4 to 5 months - Weight Gain

Answer 5

Gains 5-6 oz (150-210 g) per month

Question 6

4 to 5 months - Swallowing Coordination

Answer 6

Insufficient coordination to swallow saliva.

Question 7

6 to 7 months - Height Growth

Answer 7

Grows about 1/2 inch (1.25 cm) per month.

Question 8

6 to 7 months - Head Circumference Growth

Answer 8

Grows about 1/2 inch (0.5 cm) per month.

Question 9

6 to 7 months - Teething

Answer 9

Two lower central incisors appear, followed by upper incisors.

Question 10

8 to 9 months - Growth Pattern

Answer 10

Growth slows as focus shifts to sitting steadily, pulling to stand, developing pincer grasp, hand preference, crawling, and hand-to-mouth coordination.

Question 11

10 to 12 months - Weight

Answer 11

Birth weight triples

Question 12

10 to 12 months - Length

Answer 12

Birth length increases by 50%

Question 13

10 to 12 months - Circumference

Answer 13

Head and chest circumference are equal.

Question 14

10 to 12 months - Teeth

Answer 14

Upper and lower lateral incisors appear; total of six to eight teeth.

Question 15

1 month - Body Position

Answer 15

Flexed with pelvis high when prone; asymmetric posture (tonic neck reflex).

Question 16

: 1 month - Head Movement

Answer 16

Held parallel with body in prone position; turns side to side when prone; can lift momentarily from flat surface.

Question 17

1 month - Reflexes

Answer 17

Grasp, tonic neck, Moro, step or dance reflex.

Question 18

2 to 3 months - Head and Chest Movement

Answer 18

Holds head erect for a short time; can raise chest supported on forearms

Question 19

2 to 3 months - Leg Support

Answer 19

Bears some weight on legs when held in standing position.

Question 20

2 to 3 months - Reflex Changes

Answer 20

Grasp, tonic neck, and Moro reflexes fading; step or dance reflex disappears

Question 21

2 to 3 months - Play

Answer 21

Plays with fingers and hands.

Question 22

4 to 5 months - Sitting Position

Answer 22

Sits when back is supported; knees flexed and back rounded; balances head.

Question 23

4 to 5 months - Object Interaction

Answer 23

Reaches for and grasps object with whole hands; misjudges distances.

Question 24

4 to 5 months - Movement

Answer 24

Moves own hand or object to mouth at will; rolls over from abdomen to back.

Question 25

4 to 5 months - Prone Position

Answer 25

Lifts head and shoulders at 90-degree angle when prone.

Question 26

4 to 5 months - Reflex Disappearance

Answer 26

Early reflexes (e.g., grasp, tonic neck, Moro) have disappeared.

Question 27

6 to 7 months - Turning Over

Answer 27

Turns over from stomach to back and back to stomach.

Question 28

6 to 7 months - Sitting Position

Answer 28

Sits unsupported when placed in forward-leaning position.

Question 29

6 to 7 months - Lifting Head

Answer 29

Lifts head when supine as if trying to sit up.

Question 30

6 to 7 months - Toy Interaction

Answer 30

Approaches toy and grasps it with one hand; transfers toy from hand to hand and to mouth.

Question 31

6 to 7 months - Reflex Development

Answer 31

Landau reflex (6-8 months to 12-24 months): When suspended horizontally prone, head raised, legs and spine extended.

Question 32

6 to 7 months - Reflex Development

Answer 32

Parachute reflex (7-9 months, persists indefinitely): Suspended prone and thrust forward, hands and fingers extend forward to protect from falling.

Question 33

8 to 9 months - Sitting and Standing

Answer 33

Sits steadily alone; pulls self to standing position; stands holding onto furniture.

Question 34

8 to 9 months - Coordination and Crawling

Answer 34

Develops hand-to-mouth coordination; crawls, possibly backward at first.

Question 35

10 to 12 months - Movement and Balance

Answer 35

Creeps; stands alone briefly; walks with help; cruises by holding onto furniture.

Question 36

10 to 12 months - Eating and Play

Answer 36

Eats from spoon; drinks from cup with help; prefers using fingers; plays pat-a-cake and peek-a-boo; holds crayon to mark paper.

Question 37

10 to 12 months - Dressing

Answer 37

Helps with dressing (e.g., putting arm through sleeve).