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Pre-natal
- wk5 - 8 Embryo : Differation : forms heart, brain, spinal cord
- wk8 : fetus
- 1st trimester : wk1 - 12
- 2nd trimester : wk13 - 27
- 3rd trimester : wk28-40 -
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- responds to sound
- becomes quiet when picked up
- vocalizes ocassionally
- vision, hearing, smellling, touch, sucking, gasping, and taste
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- lifts cup and bangs it
- smiles at mirror image
- reachs for small objects
- babbling
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- walks alone
- says several words
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- speech has become well developed
- reflexes and "instictive" behaviors
- climbs stairs and says many words
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- the ability to make mental images
- sensorimotor stage
- internal mental representations of objects
- liberates the child from the present and his or hers immediate surroundings
- laguage begins to appear
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- Preoperational Stage
- sense of self as distinctive from other people and objects
- simple problem solving using mental representation
- cannot solve problems requiring logical thought
- Ego