The principles of development are summarised as follows:
The developmental milestones that a child attains are a good reflection of its physical and neurological maturity.
| Age | Gross Motor | Fine Motor | Social | Language |
|---|---|---|---|---|
| 1 Month | - | Grasp reflex | Looks at person speaking | Quietens on sound |
| 2 Months | - | Hands closed | Social smile | Smiles when spoken to |
| 3 Months | Head held up slightly | Hands open | Recognises mother | Coos and babbles |
| 4 Months | Stable head control | Reaches for objects | Laughs aloud | Continuous sounds |
| 6 Months | Sits with support | Transfers rattle | Smiles at mirror | Speaks “ba”, “ma” |
| 8 Months | Sits without support | - | - | - |
| 9 Months | Stands with support | Pincer grasp | Waves bye-bye | “Mama”, “Papa” |
| 10 Months | Walks with support | - | - | - |
| 12 Months | Stands alone | Fine pincer grasp | Plays ball | 2–3 meaningful words |
| 15 Months | Walks alone | Builds cube tower | - | Jargon speech |
| 18 Months | Runs, throws ball | Uses spoon | Imitates household work | 7–10 words |
| 2 Years | Jumps, walks backward | Turns pages | Asks for food/toilet | 2–3 word sentence |
| 3 Years | Rides tricycle | Dresses self | Knows name & age | Normal speech |
| 4 Years | Walks downstairs | Buttons clothes | Plays in group | Tells story |
| 5 Years | Skips | Ties shoelace | Helps in house work | Very talkative |