Middle childhood Flashcards
(45 cards)
Cultural models
Cognitive structures pertaining to common activities.
Physical growth
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.
Of all age groups in the life span, 6- to 10-year-olds have the lowest body mass index (BMI), a measure of the ratio of weight to height.
From age 6 to 12, children lose all 20 of their ‘primary teeth’ and new, permanent teeth replace them. The two top front teeth are usually the first to go.
Sensory development
Hearing often improves because the tube in the inner ear that is the site of ear infections in toddlerhood and early childhood has now matured and is longer and narrower than it was before. This structural change makes it less likely for fluid containing bacteria to flow from the mouth to the ear, which in turn makes inner ear infections less likely.
With regard to sight, the incidence of myopia, also known as being nearsighted, rises sharply in middle childhood and is on the rise across the world. While 1 in 4 Australians are nearsighted, myopia is the second most common long-term condition for young Australians. The increases in myopia can be put down to lifestyle factors such as spending less time outside and more time on tasks such as reading or using a screen.
Gross motor development and physical activity
In a variety of ways, gross motor development advances from early to middle childhood. Children’s balance improves, allowing them to stay steady on a bike without training wheels.
They become stronger, so that they can jump higher and throw a ball further. Their coordination advances so that they can perform movements in activities such as swimming and skating that require the synchronisation of different body parts. Most likely to be involved with an organised sport. About 60% of Australian children aged 5–14 participate in at least one organised sport, with more boys than girls participating and children aged 9–11 being the most likely to be involved.
For Australian and New Zealand children aged between 5 and 12, at least 60 minutes of moderate to vigorous physical activity per day is recommended.
Finally, their reaction time becomes faster, allowing them to respond rapidly to changing information.
Increasing myelination of the corpus callosum connecting the two hemispheres of the brain (see the chapter ‘Early childhood’) accelerates reaction time in middle childhood for both gross motor and fine motor tasks.
Fine motor development
Not many 3- or 4-year-olds can tie their shoelaces successfully, but nearly all 8- to 9-year-olds can. In Asian cultures, only about half of 4-year-olds can use chopsticks well enough to eat with them, but for children 6 years old and up it comes easily.
By the end of middle childhood, their fine motor abilities have nearly reached adult maturity, whereas gross motor development will continue to advance for many years to come.
Malnutrition
There is a consensus that the sensitive period for long-term effects of malnutrition is from the second trimester of pregnancy to age 3. Malnutrition that begins after age 3 does not appear to result in permanent cognitive or behavioural deficits.
Overweight and Obesity
BMI exceeding 18 and 21, respectively.
In Australia, children aged between 5 and 14 spend more than 2 hours a day on screen-based activities.
In addition, more screen time was related to a higher waist circumference, unhealthy eating and less physical activity.
Genetics also makes a contribution to obesity. Concordance rates for obesity are higher among MZ twins than DZ twins. Research has even identified a specific gene, called FTO, that sharply increases children’s risk for obesity.
Even in middle childhood, obesity can result in health risks such as breathing problems, joint issues or type 2 diabetes. Obesity also proves hard to shake from childhood to adulthood. About 80% of obese children remain overweight as adults.
Asthma
Rates of asthma are highest in middle childhood and are increasing worldwide. Boys are at higher risk than girls, for reasons that are not clear.
Other risk factors are low birth weight, having a parent who smokes, living in poverty and obesity.
Asthma is the most common chronic condition for children in Australia, affecting 11% of those under age 14. Indigenous Australians have a higher prevalence rate compared to non-Indigenous Australians.
The most common causes of injury in middle childhood are car accidents, drowning and burns.
Piaget’s concrete operation stage
Ages 7 - 12.
During this stage, children become capable of using mental operations, which allow them to organise and manipulate information mentally instead of relying on physical and sensory associations.
According to Piaget, the advances of concrete operations are evident in new abilities for performing tasks of conservation, classification and seriation.
Information processing
Due to increased myelination in the brain, especially of the corpus callosum connecting the two hemispheres, speed of processing information increases.
Selective attention
In middle childhood, children become more capable of focusing their attention on relevant information and disregarding what is irrelevant.
attention-deficit/hyperactivity disorder (ADHD)
It is estimated that around 1 in 20 Australian children and 3–5% of school-aged children in New Zealand have ADHD. Boys are over twice as likely as girls to have ADHD.
A large European study found higher rates of ADHD among boys than among girls, but the ratios varied widely among countries, from 3:1 to 16:1.
Girls with ADHD were more likely than boys to have additional emotional problems and to be bullied by their peers, whereas ADHD boys were more likely than girls to have conduct problems.
The diagnosis is usually made by a GP who will refer the family to a paediatrician or psychologist, who will then provide a more comprehensive evaluation of the child in consultation with parents and teachers.
Managing ADHD
Stimulant medications have successfully treated children with ADHD since the 1970s. The most common stimulants prescribed are methylphenidate (also known as Ritalin) and dexamphetamine. These types of medication can improve concentration, impulse control and hyperactivity in most children.
However, there are concerns about side effects, including decreased appetite, headaches or dizziness, difficulty falling asleep and irritability. Behavioural therapies are also effective, and the combination of medication and behavioural therapy is more effective than either treatment alone.
Memory
On memory tests for sequences of numbers, the length of the sequence recalled is just 4 numbers for the typical 7-year-old, but for the typical 12-year-old it has increased to 7, equal to adults,
Middle childhood is the period when children first learn to use mnemonics memory strategies, such as rehearsal, organisation and elaboration.
Intelligence
Capacity for acquiring knowledge, reasoning and solving problems.
Genetics plays a huge role in correlation of intelligence. Environment also plays a factor.
The Wechsler intelligence tests
The most widely used intelligence tests are the Wechsler scales, including the Wechsler Intelligence Scale for Children (WISC) for ages 6–16. There are also the Wechsler Preschool and Primary Scale of Intelligence (WPSSI) and the Wechsler Adult Intelligence Scale (WAIS) for ages 16 and up.
The Wechsler scales consist of 11 subtests, of which 6 are Verbal subtests and 5 are Performance subtests. Provide IQ score 100 as median. The overall IQ can be broken down into a Verbal IQ score, a Performance IQ score and scores for each of the 11 subtests.
People with IQs below 70 are classified as having intellectual disability, and those with IQs above 130 are classified as gifted.
Flynn effect
From 1932 to 1997, the median IQ score among children in the United States rose by 20 points.
Due to environmental factors such as parental care. More preschool and less children in the houshold.
The brain requires a great deal of the body’s physical energy—87% in newborns, nearly half in 5-year-olds and 25% in adults. Infectious diseases compete for this energy by activating the body’s immune system and interfering with the body’s processing of food during years when the brain is growing and developing rapidly. The higher a country’s infectious disease burden, the lower its median IQ. Thus, the Flynn effect may have been primarily due to the elimination of major infectious diseases in developed countries.
Gardner’s theory of multiple intelligences
Linguistic
Musical
Logical/mathematical
Spatial
Bodily/kinaesthetic
Interpersonal
Intrapersonal
Naturalist
Sternberg’s triarchic theory of intelligence
Analytical
Creative
Practical
Neither Sternberg’s nor Gardner’s tests are widely used among psychologists, in part because they take longer to administer and score than standard IQ tests do.
Vocabulary, grammar and pragmatics
At age 6, the average child knows about 10,000 words, but by age 10 or 11, this number has increased fourfold to about 40,000.
Start using conditional sentences.
In middle childhood, the understanding of pragmatics grows substantially. A substantial amount of humour in middle childhood involves violating the expectations set by pragmatics.
Multilingualism
Within Australia, 65% of Indigenous Australian children in remote areas and 25% in non-remote areas can speak an Indigenous language; for 31% in remote areas, it was the main language they spoke at home.
English is the most common language spoken by Māori and Samoan children living in New Zealand, and 15.2% of Māori and 32.9% of Samoans speak two languages.
When children learn two languages, they usually become adept at using both. They understand they are learning more than one language, and learning a secondary language does not interfere with mastering the primary language.
When children learn their second language after already becoming fluent in a first language, it takes longer to master the second language, usually 3–5 years.
Studies have shown that beyond the age of about 12 it is difficult for people to learn to speak a new language without a noticeable accent.
metalinguistic skills
Children who are bilingual or multilingual have better metalinguistic skills than single-language children, meaning that they have greater awareness of the underlying structure of language.
Studies have confirmed that multilingual children are better than single-language children at detecting mistakes in grammar and meaning.
Multilingual children also score higher on more general measures of cognitive ability, such as analytical reasoning, cognitive flexibility and cognitive complexity, indicating that becoming bilingual also has general cognitive benefits.
Neurological research has shown that children exposed to two languages have denser brain tissue in areas related not only to language, but also to attention and memory. This is especially the case for children who heard different languages before the age of 5 years.
Schooling
In New Zealand, the Education Act of 1877 introduced compulsory and free education for ages 7–13, and by 1930, attendance was estimated at 90%.
In most developing countries, about 18% of children aged 6–10 do not attend primary school, and in sub-Saharan Africa, 23% of boys and 21% of girls aged 6–10 do not attend.
In our grandparents’ generation, few children were expected to continue education past Year 6. In 2020, the apparent retention rate to Year 12 was around 88% for girls and 79% for boys, and had increased from 84% and 75%, respectively, in 2011.
Phonics approach
The phonics approach advocates teaching children by breaking down words into their component sounds, called phonics, then putting the phonics together into words.