By 3 months:
• Holds head up well
• Lifts head and pushes on arms when on stomach
• Makes cooing sounds
By 6 months:
• Sits with support
• Babbles
• Rolls from back to belly
• Passes toys hand to hand
• Smiles at you
By 8 months:
• Sits alone well
• Bangs toys in play
• Says simple sounds like rna, da, ga, ba
By 12 months:
• Walks with hand held
• Says 2-3 words
• Plays pat-a-cake and peek-a-boo
• Finger feeds well
• Points to objects at a distance
• Responds when called by name
• Makes eye contact
By 15 months:
• Walks well alone
• Scribbles with crayon
• Uses 4-7 words
• Rolls ball to an adult
By 24 months (2 years):
• Runs, can kick, throw & catch ball
• Ask questions
• Can name pictures
• Says two words together
By 36 months (3 years):
• Climbs stairs
• Feeds self
• Rides tricycle
• Says 3-4 words together clearly
By 48 months (4 years):
• Can use playground equipment
• Dresses and undresses self
• Knows colors, own name
• Enjoys playing with other children
• Uses sentences- talks a lot