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Growth, Development, & Reflexes. Child Development: How a child becomes able to do more complex things as they age. Development is measured through specific Milestones. Milestones are a set of Skills or tasks that most children can do at a certain age.
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Growth, Development, & Reflexes Child Development: How a child becomes able to do more complex things as they age. Development is measured through specific Milestones. Milestones are a set of Skills or tasks that most children can do at a certain age.
Growth = Measurable change in size • Head to Foot • Near to Far • Simple to complex
GROWTH • 1st 6 months = 1-2 pounds per month • Last 6 months = 1 pound per month • By their 1 st birthday a baby has tripled it’s birth weight. • The average weight is 20-22 pounds
GROWTH • By 1 year old, the average infant is about 30 inches long • Growing 1 inch per month • Has increased it’s birth weight by 1/2
GROWTH • Head and abdomen are large • Legs and arms are short and small
DEVELOPMENT = Increase in physical, emotional, social, or intellectual skills
DEVELOPMENT - SIGHT • By 3rd month the baby’s vision is almost as good as it’s going to get • DEPTH PERCEPTION = ability to recognize that an object is 3 dimensional and not flat. (2nd month)
DEVELOPMENT - SIGHT • Hand-eye coordination = ability to move the hands and fingers precisely in relation to what is seen (develops gradually)
DEVELOPMENT - HEARING • Develops before birth • Responds to tone rather than words • Should have hearing test by about 6 months
SIGNS OF HEARING PROBLEM • Not startled by sharp clap • 3 months old and never turns toward the source of sound • Is not awakened by loud noises • Pays not attention to ordinary sounds
DEVELOPMENT - Smell and Taste • Within 10 days they can distinguish by smell their own mother • At 2 weeks they can taste difference between sour, sweet, salt, and milk
REFLEXES = automatic, unlearned behavior • Important because: • Determines health of nervous system • Absence may be a sign of brain damage • Needed for survival • Lead to voluntary, learned behaviors • Gives practice needed to develop
REFLEXES • PALMAR – fingers tighten around any object placed in palm. Disappears 3-4 months • PLANTAR – Toes tighten around any object that touches the ball of the foot Disappears 11/2 years
REFLEXES • BABINSKI – Toes fan out if the outside of sole is stroked from heal to toe Disappears 1 yr • MORO – Flings arms and legs out then pull back in to fetal position Disappears 6 mths
REFLEXES • ROOTING – When cheek is stroked they will turn in search for food Disappears 3-4 mths • WALKING – When feet touch a solid surfaces, alternating steps are taken as in walking Disappears 3-4 mths