Unit 201, 1.1 Stages of Development

Unit 201 1.1 Developmental Milestones |
Age | Physical | Communication and intellectual | Vision and hearing | Social, Emotional and behavioural |
4–6 weeks | When held upright, holds head erect and steady | | | Smiles at parent |
6–8 weeks | When prone, lifts self by arms; rolls from side to back. | Vocalises; Cooes (makes vowel-like noises) or babbles. | Focuses on objects as well as adults | |
12–20 weeks | | | Hand regard: following the hand with the eyes.. Colour vision adult-like. | Serves to practice emerging visual skills. Also observed in blind children. |
3 months | Prone: head held up for prolonged periods. No grasp reflex | Makes vowel noises | Follows dangling toy from side to side. Turns head round to sound. Follows adults' gaze (joint attention). Sensitivity to binocular cues emerges. | Squeals with delight appropriately. Discriminates smile. Smiles often. Laughs at simple things. |
5 months | Holds head steady. Goes for objects and gets them. Objects taken to mouth | Enjoys vocal play; | | |
6 months | Transfers objects from one hand to the other. Pulls self-up to sit and sits erect with supports. Rolls over prone to supine. Palmar grasp of cube | Double syllable sounds such as 'mumum' and 'dada'; babbles (consonant-vowel combinations) | Localises sound 45 cm lateral to either ear. Visual acuity adult-like (20/20). Sensitivity to pictorial depth cues (those used by artists to indicate depth) emerges. | May show 'stranger shyness' |
9–10 months | Wiggles and crawls. Sits unsupported. Picks up objects with pincer grasp | Babbles tunefully | Looks for toys dropped | Apprehensive about strangers |
1 year | Stands holding furniture. Stands alone for a second or two, then collapses with a bump | Babbles 2 or 3 words repeatedly | Drops toys, and watches where they go | Cooperates with dressing, waves goodbye, understands simple commands |
18 months | Can walk alone. Picks up toy without falling over. Gets up/down stairs holding...