List of Skills by Age

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1-2 Months

Keeps head erect briefly in upright position, but head still bobs

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2-4 Months

Head steady in supported sitting for 10-15 minutes, back firm

Holds head in line with body when pulled to sit

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4-6 Months

Moves head freely

Sits unsupported momentarily; may extend arms forward to catch self or prop on arms

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6-8 Months

Pushes up to sit from side or crawl

Good balance; sits alone

Head leads when pulled to sit or stand

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8-10 Months

Sits without support and plays with toys

Moves to hands and knees from sit

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10-12 Months

Reaches for distant objects forward, up, and behind with balance and rotation when sitting on the floor

Rotates body to get into sitting position

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12-15 Months

Approaches a small, low chair, turns and sits down

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15-18 Months

Climbs into adult chair to sit or stand up

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18-21 Months

Climbs down from adult chair

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21-24 Months

Sits in a variety of floor positions and different types of chairs

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24-27 Months

Sitting: Transitions easily from one position to another

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27-30 Months

Sitting established

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30-33 Months

Sitting established

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33-36 Months

Sitting established

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36-42 Months

Sitting established

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42-48 Months

Sitting established

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48-54 Months

Sitting established

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54-60 Months

Sitting established