exam 2- lifespan Flashcards
(170 cards)
the average child knows about ___ words at age 2, and more than ____ on average by age 6
500; 10,000
early childhood is between the ages of
2-6 yrs
body changes in early childhood
-weight and height increases
-avg bmi is lower at 5 and 6 than at any other time in life
-children become slimmer as the lower body lengthens
-center of gravity moves from breastbone down to the belly button
during each year in early childhood, well-nourished children will
gain around 4 1/2 lbs and 3 inches
obesity among young children
-as family income decreases, obesity increases due to poor nutrition= reduces immunity and increasing illness
tooth decay correlates with
obesity
c section births triple the risk of
food allergies
by age 2, a childs brain weighs
75% of what it will in adult hood
by age 6, the brain reaches
90% of adult weight
from ages 2-6, maturation to the pfc benefits:
-sleep: becomes more regular
-emotions become more nuanced and responsive
-temper tantrums decrease or subside
-uncontrollable laughter and tears are less common
myelin is
a fatty coating the axons that protects and speeds signals between neurons. This helps the network connection between the two hemispheres
the brain is divided into two halves called
hemispheres
the corpus callosum is a
long, thick band of axons that myelinates and grows particularly rapidly in early childhood
the hemispheres are connected by the
corpus callosum
preoperational intelligence is Piaget’s
second of the four periods of cognitive development
preoperational children are no longer limited by
their senses and motor abilities
preoperational though: ages 2-7 characteristics
-children think in symbolic thought: an object or a word can stand for something else, including something out of sight of imagined.
-example: a child might pick up a stick and pretend it is a sword
rapid acquisition of vocabulary is a dramatic example of
symbolic thought
animism (preoperational thinking)
the belief that natural objects (sun or clouds) are alive and that nonhuman animals have the same characteristics as the child
obstacles to logic (preoperational) (there are 5)
centration: young child focuses (centers) on one idea, excluding all others
-ex: dad is a father, but not a brother because that is not his role
egocentrism: young childs tendency to think about the world entirely from their own personal perspective
-ex: gifting his mom a toy he really likes because he believes she will like it too
focus on appearance: ignores all attributes that are not apparent
-ex: a girl given a short haircut may think she is now a boy
static reasoning: young child thinks that nothing changes; whatever is now has always been and always will be
-ex: child cannot imagine his parents as children
irreversibility: thinks that nothing can be undone; a thing cannot be restored to the way it was before a change occured
-ex: knocking down blocks makes the child sad because they think it cant go back to a tower
conservation and logic: preoperational
conservation is the principle stating that the amount of a substance remains the same when its appearance changes
ex: there are two equal lines of checkers, the adult spaces one line out to make it appear longer. when asked which has more checkers, most children before the age of 6 pick the longer one
young children fail to understand conservation because
they focus (center) on what they see (appearance), noticing only the immediate (static) condition. They do not realize they could push the checkers closer and make both lines the same length again (irreversibility)
examples of lack of reasoning: lying
young children, when given a scenario where they were asked if someone doing something bad lies, can only focus on one aspect of the event. for example, if the person stole, but told the truth that he stole, they would still say he lied because they focused on the bad act:
bad acts= lies
good acts= truth
limitations of piagets theory
age of skill acquisition often younger than Piaget said
alternate explanations for development:
-social interactions and cultural experiences critical to advance development
-children gradually build knowledge, they don’t go through different qualitative stages