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Period: to
First year of life
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Birth to 3 months
See objects more clearly within a distance of 13 inches
Focus on moving objects, including the faces of caregivers
Tell between sweet, salty, bitter and sour tastes.See all colors in the human visual spectrum.Respond to their environment with facial expressions -
4 to 6 months
Recognize familiar faces. Respond to the facial expressions of other people. Recognize and react to familiar sounds. Begin to imitate facial expressions -
6 to 9 months
Understand the differences between animate and inanimate objects
Tell the differences between pictures depicting different numbers of objects. -
9 to 12 months
Understand the concept of object permanence, the idea that an object continues to exist even though it cannot be see Imitate gestures and some basic actions. Respond with gestures and sounds. Like looking at picture books. Manipulate objects by turning them over, trying to put one object into another, etc.