Class Notes 9.21.10

Class Notes 9.21.10 - Class Notes 9/21/2010 OLD in Infants...

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Class Notes 9/21/2010 OLD in Infants Brain development and oral language Babies are born with 100 billion unconnected neurons 3 months- 1,000 trillion synapses 3-4 months- Temporal lobe and visual cortex connections strengthen 6-9 months- Myelinization occurs 12 months- Infant’s full cortex consumes more energy than adult’s Birth-K children hear Professional home: 11 million words (2153 words per hour) Working class: 6 million (1251 wph) Limited income: 3 million (616 wph) Affirmation : prohibition ratio Professional home: 6:1 Working class: 2:1 Limited income: 1:2 Adams (1990) Difference in literacy activities at home based on income Lap reading before kindergarten Professional home: 1000-1700 hours Limited income: 25 hours (ESTIMATED) Quantity AND quality of lap reading are important What OLD in infants looks like
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Class Notes 9.21.10 - Class Notes 9/21/2010 OLD in Infants...

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