Childrens learning

How children learn and strategies to help them

Physical fitness improves memory in children

October, 2010

More evidence for the benefits of physical exercise for cognition, this time involving 9-10 year old children.

Brain imaging of 49 children aged 9-10 has found that those who were physically fit had a hippocampus significantly bigger (around 12%) than those who were not fit. Animal studies and those with older adults have shown that aerobic exercise increases the growth of new brain cells in the hippocampus. Physical fitness was measured by how efficiently the children used oxygen while running on a treadmill. Fitter children also did better on tests of relational (but not item) memory, and this association was directly mediated by hippocampal volume.

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Rehearsing so as not to forget

August, 2010

A new study shows that verbal rehearsal develops considerably between the ages of six and eight.

A study involving 117 six year old children and 104 eight year old children has found that the ability to preserve information in working memory begins at a much younger age than had previously been thought. Moreover the study revealed that, while any distraction between learning the words and having to recall them hindered recall, having to perform a verbal task was particularly damaging. This suggests that their remembering was based on “phonological rehearsal”, that is, verbally repeating the names of the items to themselves. Consistent with the research suggesting children begin to phonologically rehearse at around 7 years of age, the verbal task hindered the 8 year olds more than the 6 year olds.

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Cultural differences & developmental changes in working memory

January, 2010

A comparison of Ugandan and Senegalese children has found differences in which working memory system is dominant. This may be a product of literacy training.

‘Working memory’ is thought to consist of three components: one concerned with auditory-verbal processing, one with visual-spatial processing, and a central executive that controls both. It has been hypothesized that the relationships between the components changes as children develop. Very young children are more reliant on visuospatial processing, but later the auditory-verbal module becomes more dominant. It has also been found that the two sensory modules are not strongly associated in younger (5-8) American children, but are strongly associated in older children (9-12). The same study found that this pattern was also found in Laotian children, but not in children from the Congo, none of whom showed a strong association between visual and auditory working memory. Now a new study has found that Ugandan children showed greater dominance of the auditory-verbal module, particularly among the older children (8 ½ +); however, the visuospatial module was dominant among Senegalese children, both younger and older. It is hypothesized that the cultural differences are a product of literacy training — school enrolment was much less consistent among the Senegalese. But there may also be a link to nutritional status.

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Those less motivated to achieve will excel on tasks seen as fun

January, 2010

Telling students to strive for excellence may not always be the best strategy.

You may think that telling students to strive for excellence is always a good strategy, but it turns out that it is not quite as simple as that. A series of four experiments looking at how students' attitudes toward achievement influenced their performance on various tasks has found that while those with high achievement motivation did better on a task when they also were exposed to subconscious "priming" that related to winning, mastery or excellence, those with low achievement motivation did worse. Similarly, when given a choice, those with high achievement motivation were more likely to resume an interrupted task which they were told tested their verbal reasoning ability. However, those with high achievement motivation did worse on a word-search puzzle when they were told the exercise was fun. The findings point to the fact that people have different goals (e.g., achievement vs enjoyment), and that effective motivation requires this to be taken account of.

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[730] Hart, W., & Albarracín D.
(2009).  The effects of chronic achievement motivation and achievement primes on the activation of achievement and fun goals..
Journal of Personality and Social Psychology. 97(6), 1129 - 1141.

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Children with home computers likely to have lower test scores

July, 2010

An American study suggests that getting a home computer can have a negative effect on reading and math scores in middle-grade students, particularly those from disadvantaged families.

Data from North Carolina's mandated End-of-Grade tests (2000-2005), which includes student reports on how frequently they use a home computer for schoolwork, watch TV or read for pleasure, reveals that students in grades five through eight (c.10-13), particularly those from disadvantaged families, tended to have lower reading and math scores after they got a home computer. The researchers suggest that the greater negative effect in disadvantaged households may reflect less parental monitoring.

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[1635] Vigdor, J. L., & Ladd H. F.
(2010).  Scaling the Digital Divide: Home Computer Technology and Student Achievement.
National Bureau of Economic Research Working Paper Series. No. 16078,

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Sleep apnea in children and teens linked to lower academic grades

July, 2010

A study of overweight children and adolescents has found that moderate to severe obstructive sleep apnea was linked to both lower academic grades and behavioral concerns.

A study involving 163 overweight children and adolescents aged 10 to 17 has revealed that moderate to severe obstructive sleep apnea was linked to both lower academic grades and behavioral concerns. None of the students with moderate to severe OSA had an "A" average, and 30% had a "C" average or lower. In contrast, roughly 15% of those without sleep-disordered breathing had an "A" average, and only about 15% had a "C" average or lower. The results remained significant after adjustment for sex, race, socioeconomic status and sleep duration on school nights. OSA was particularly associated with inattention and poor study skills in real-world situations Forty-two students had moderate to severe OSA; 58 had mild OSA; 26 students were snorers; 37 had no sleep-disordered breathing.

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Beebe, D.W. et al. 2010. The association between sleep-disordered breathing, academic grades, and neurobehavioral functioning among overweight subjects during middle to late childhood. Presented at SLEEP 2010, the 24th annual meeting of the Associated Professional Sleep Societies LLC, in San Antonio, Texas.

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Regular bedtimes linked to better language, reading and math skills in preschool children

July, 2010

A large study reveals language and math skills were all better in 4-year-old children whose parents reported having rules about what time their child goes to bed.

A national study involving some 8,000 children, has revealed receptive and expressive language, phonological awareness, literacy and early math abilities were all better in 4-year-old children whose parents reported having rules about what time their child goes to bed. Having an earlier bedtime also was predictive of higher scores for most developmental measures. Recommendations are that preschool children get a minimum of 11 hours of sleep each night. These findings (which confirm earlier studies) indicate not only that lower scores on phonological awareness, literacy and early math skills are associated with getting less than this recommended amount of sleep, but that many children are not getting the recommended amount of sleep.

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Gaylor, E., Wei, X. & Burnham, M.M. 2010. Associations between nighttime sleep duration and developmental outcomes in a nationally representative sample of preschool-age children. Presented at SLEEP 2010, the 24th annual meeting of the Associated Professional Sleep Societies LLC, in San Antonio, Texas.

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Your child’s grades are affected by their friends

July, 2010

Your teenager's school grades are usually better if they have more friends from their own school than out-of-school friends.

A study involving 629 12th-grade students from three Los Angeles-area high schools has revealed that, across both genders and all ethnicities, adolescents with more in-school friends, compared with out-of-school friends, had higher grade point averages. It’s assumed that this is due to the fact that in-school friends are more likely to support school-related activities, including studying.

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ADHD linked to welfare benefits, low maternal education, solo parents

July, 2010

Data from an entire birth cohort in Sweden has revealed that poverty and having a poorly educated mother are major risk factors in ADHD (or at least being medicated for it).

A national Swedish study involving the 1.16 million children in a national birth cohort identified nearly 8000 on the country's Prescribed Drug Register as using a prescription for ADHD medication (and thus assumed to suffer from severe ADHD). These children were significantly more likely to come from a family on welfare benefits (135% more likely), to have a mother with only the most basic education (130% more likely than those with mothers with university degrees), and to come from a single parent family (54% more likely). Boys were three times more likely to be on ADHD medication than girls, with medication use highest in boys aged between 10 and 15. The finding that family adversity is such a strong risk factor points to the need for more research into the role of environment

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Quality of early child care affects academic achievement in adolescence

July, 2010

A long-running study has revealed that while hours of non-relative childcare in the preschool years affects later behavior, quality of childcare continues to affect academic achievement into adolescence.

Data from the same long-running study (the NICHD Study of Early Child Care and Youth Development), this time involving 1,364 youth (followed since birth), found that teens who had spent the most hours in non-relative child care in their first 4½ years reported a slightly greater tendency toward impulsiveness and risk-taking at 15 than did peers who spent less time in child care (21% were in care for more than 30 hours a week; 24% had had more than one year of care by 4 ½). But it was the quality of child care that made the difference as far as cognitive and academic performance was concerned. Those who had higher quality child care had better results on cognitive and academic assessments at both age 4½ and age 15. High-quality care was characterized by the caregivers' warmth, support, and cognitive stimulation of the children under their care. More than 40% of the children experienced high-quality (17%) or moderately high-quality (24%) care. The findings were consistent across gender and socioeconomic status. Previous research has tended to focus on the effects of child care on disadvantaged children; this one is notable for involving children across society. The study is important not only for pointing to the effects of childcare quality, but for the finding that the effect continues into adolescence.

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