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Birth
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4 months: Begins to babble/First Smile
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7 months (Babbles many chains of sounds)
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1 year: Forms a secure attachment to caregiver
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2 years: Begins to make-believe play/defiant behavior
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3 years: Start riding a tricycle/Sort objects by shape and color
- Start riding a tricycle
- Sort objects by shape and color
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4 years: Cooperates with other children - Can start Preschool
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5 years: Dresses and undresses without help/Kindergarten
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6 years: Can recognize others’ perspectives/Can’t assume the role of the other
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7 years: Strict adherence to rules/Behavior and Intent
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8 years: Coordination continues to improve/Privacy
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9 years: Increased attention span but interests may change rapidly.
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10 years: Rules can be negotiated/Puberty