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New research suggests that play and down time may be as important to a child’s academic experience as reading, science and math, and that regular recess, fitness or nature time can influence behavior, concentration and even grades.Check out the entire article here.
A study published this month in the journal Pediatrics studied the links between recess and classroom behavior among about 11,000 children age 8 and 9. Those who had more than 15 minutes of recess a day showed better behavior in class than those who had little or none. Although disadvantaged children were more likely to be denied recess, the association between better behavior and recess time held up even after researchers controlled for a number of variables, including sex, ethnicity, public or private school and class size.
The lead researcher, Dr. Romina M. Barros, a pediatrician and an assistant clinical professor at the Albert Einstein College of Medicine, said the findings were important because many schools did not view recess as essential to education.
“Sometimes you need data published for people at the educational level to start believing it has an impact,” she said. “We should understand that kids need that break because the brain needs that break.”
For years the hygiene hypothesis has been used to explain stark differences in asthma rates around the world. In Western countries, asthma rates are about 50 times higher than in rural Africa, for instance. The hygiene hypothesis suggests that Westerners have less exposure to bacteria, viruses and parasites, altering the immune response and increasing risk for allergic diseases.
But Dr. Harold S. Nelson, professor of medicine at the asthma and allergy specialty hospital National Jewish Health in Denver, says the hygiene hypothesis doesn’t fully explain rising asthma rates in the United States and industrialized countries. The incidence of asthma has doubled in the United States since the 1980s.
In a recent talk at National Jewish Health’s annual Pulmonary and Allergy Update conference, Dr. Nelson noted that lower levels of vitamin D, exposure to spray cleaning compounds, and a wider use of acetaminophen in place of aspirin have contributed to the asthma epidemic.
The concern with household cleaners is that the spray mist can be inhaled and irritate the lungs, increasing risk for asthma. The biggest culprits appear to be glass cleaners and air fresheners. A major European study of cleaning product use in 10 countries found that people who used the cleaners four days a week faced double the risk of adult asthma. Weekly use increased risk by 50 percent. Australian researchers have also found a link with household cleaning sprays and asthma in children.
"The rules are simple: Fill the grid with digits so as not to repeat a digit within any row or column, and so the digits within each heavily outlined box (called a cage) go together using the arithmetic operation shown to make the target number indicated.
Two new KenKen puzzles will be presented in The Times each day from Monday through Saturday. The first is a four-by-four-square puzzle that increases in difficulty from easy to medium as the week progresses. The second is a six-by-six-square puzzle that goes from medium to hard.
KenKen was invented in 2004 by the Japanese educator Tetsuya Miyamoto, who founded and teaches at the Miyamoto Math Classroom in Tokyo. Students attend his class on weekends to improve their math and thinking skills. Mr. Miyamoto said he believes in “the art of teaching without teaching.”
He provides the tools for students to learn at their own pace using their own trial-and-error methods. If these tools are engaging enough, he said, students are more motivated and learn better than they would through formal instruction.
About 90 minutes of class time each week is set aside for solving puzzles, usually designed by Mr. Miyamoto. The most popular one has been KenKen."