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lasts from conception to birth
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the baby physically adapts to life outside of the mothers body
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the infant develops the foundation for motor,thinking,language,and social skill
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the child makes great strides in motor and begins to test his or her dependance on adults
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child becomes more self-sufficient, spends many hours in play exploring the physical and social world,and develops a rather stable selt-concept
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they are exposed to many other school learnings. Achievements is the central goal of these years