middle childhood Flashcards
what happens to children’s teeth during ages 6-12
children lose all primary teeth
myopia
nearsighted
what can cause myopia in middle childhood
spending less time outside and more time looking at screens - or partly genetic
girls have more muscle mass than boys during childhood ‘true or false’
false
what accelerates reaction time in middle childhood for both gross motor and fine motor tasks
Increasing myelination of the corpus callosum connecting the two hemispheres of the brain
what is the recommended amount of PA for children aged 5-12
60 minutes
executive functioning
the ability to solve cognitive problems without becoming distracted and to adjust one’s strategy as the nature of a problem changes
physical activity has been shown to improve what cognitive function?
executive functioning
what age does fine motor abilities almost reach adult maturity
8 or 9
gross motor development continues to develop through to _____
adulthood
girls and boys are more likely to be slim during ________ than any other time
middle childhood
why can children run longer and faster in middle childhood?
extra lung capacity
the ability to solve cognitive problems without becoming distracted and to adjust one’s strategy as the nature of a problem changes
The ability to solve cognitive problems without becoming distracted and to adjust one’s strategy as the nature of a problem changes
by the time Shawna has reached the end of middle childhood, what abilities are close to adult maturity?
fine motor skills
what age does malnutrition result in permanent cognitive or behavioural deficits?
Before age 3 - after age 3, malnutrition does not result in permanent effects.
What kind of nutritional problem is prevalent in developed countries?
obesity
what is used to calculate weight status in children?
body mass index (BMI)
what are the current rates of obesity in Australian children like?
stable
what are two contributors to obesity in children?
diet and screen media
what is BMI of an overweight child
exceeding 18
what is the BMI of an obese child
exceeding 21
what percentage of obese children remain overweight as adults
80%
Explain why rates of illness and injury are relatively low in middle childhood
In developed countries, most children have been vaccinated, in developing countries, rates of vaccination are climbing. Children also have stronger immune systems. In developed countries, even rates of minor illnesses have declined in middle childhood in recent decades due to public health policies. Over time, food production has become cleaner and safer, and food content more closely regulated by government agencies. The air and water have become cleaner in developed countries due to laws and restrictions by governments.
asthma
a chronic illness of the lungs characterised by wheezing, coughing and shortness of breath.
why have rates of asthma risen in middle childhood
Why are rates of asthma higher now than in the past? The answer appears to be different for developed countries than for developing ones. In developed countries, common features of today’s family households contribute to asthma, including carpets, hairy pets and airtight windows (Tamay et al., 20071638; WHO, 2017e1639). There is also a ‘hygiene hypothesis’ suggesting that high standards of cleanliness and sanitation expose children to fewer viruses and bacteria, and consequently they have fewer illnesses in their early years that would strengthen their immune systems and make them less susceptible to asthma (Lautenbacher & Perzanowski, 20171640). In developing countries, air pollution has become worse as a result of increased industrialisation, and air pollution can trigger asthma. One study in Mongolia compared people in rural and urban areas and found substantially higher rates of asthma in urban areas, due mainly to poorer air quality (Vinanen et al., 20071641).
what are the most common causes of injury in middle childhood?
car accidents, drowning and burns
what is the current understanding of how genetics influences obesity
genetics can’t explain recent rises in obesity, rather it only provides a risk.
What gender is more likely to develop asthma in middlechildhood
males - cause unclear
Identify the changes in physical and sensory development that take place during middle childhood.
In middle childhood, physical growth continues at a slow but steady pace—about 5–8 cm per year in height and about 2.5–3 kg per year in weight. Children lose all 20 primary teeth and their permanent teeth begin to grow in. Ear health improves, but one-quarter of children become nearsighted during middle childhood.
Explain how motor development advances in middle childhood and how these advancements are related to new skills and participation in games and sports.
Children’s gross motor skills improve in middle childhood due to improved balance, increased strength, better coordination, greater agility and faster reaction time. As their gross motor development advances, children improve their performance in a wide range of games and sports, and many of them participate in organised sport. Fine motor development reaches nearly an adult level at this age, and across cultures, advances are especially evident in two areas: drawing and writing.
Describe the negative effects of both malnutrition and obesity on development and identify the causes of obesity.
Studies have shown that better nourished children are more energetic, less anxious, show more positive emotion and score higher than malnourished children on a wide range of cognitive measures in middle childhood. Across countries, rates of overweight and obesity are highest in the most affluent regions and lowest in the poorest regions. Obesity is a cultural phenomenon, and a variety of social and cultural changes have contributed to this problem, including diets with more fast food and high rates of television viewing. Genetics also make a contribution. Socially, being obese increases the likelihood that a child will be excluded and the object of ridicule by peers. Physically, obesity can result in diabetes in middle childhood, which eventually can lead to problems such as blindness, kidney failure and stroke.
according to Piaget what is the stage for years 7-11
concrete operational
seriation
ability to arrange things in a logical order
what can children using concrete operations do?
Children using concrete operations can place objects in order based on their properties