Adding math talk to story time at home is a winning factor forchildren's math achievement, according to a new research from the University ofChicago. The study from psychologists Sian Beilock and Susan Levine shows amarked increase in math achievement among children whose families used Bedtime Math, an iPad app that delivers engaging math story problems for parents and children to solve together.

    Even children who used the app with their parents as little as once a week saw gains in math achievement by the end of the school year. The app's effect was especially strong for children whose parents tend to beanxious or uncomfortable with math.

    Previous research from this group has demonstrated the importance of adults' attitudes about math for children's math success. For example, a recent study found that math-anxious parents who help their children with math homework actually weaken their children's math achievement.

    The new findings demonstrate that structured, positive interactions around math at home can cut the link between parents' uneasiness about math and children's low math achievement.

  “Many Americans experience high levels of anxiety when they haveto solve a math problem, with a majority of adults feeling at least some worries about math,” said Beilock, professor in Psychology andauthor of Choke, a book about stress and performance. “These math-anxiousparents are probably less likely to talk about math at home, which affects how competent their children are in math. Bedtime Math encourages a dialogue between parents and kids about math, and offers a way to engage in high-quality math interactions in a low-effort, high-impact way.”

    Study participants included 587 first-grade students and their parents. Families were given an iPad installed with a version of the Bedtime Math app, with which parents and their children read stories and answer questions involving math, including topics like counting, shapes and problem-solving. A control group received a reading app that had similar stories without the math content and questions related to reading comprehension instead. Children's math achievement was assessed at the beginning and end of the school year. Parents completed a questionnaire about their nervousness with math.

    The more times parents and children in the math group used the app, the higher children's achievement on a math assessment at the end of the school year. Indeed, children who frequently used the math app with their parents outperformed similar studentsin the reading group by almost three months in math achievement at year's end.

    Most of the people who appear most often and most gloriously in the history books are great conquerors and generals and soldiers, whereas the people who really helped civilization forward are often never mentioned at all. We do not know who first set a broken leg, or launched a seaworthy boat, or calculated the length of the year, or manured(施肥)a field; but we know all about the killers and destroyers. People think a great deal of them, so much so that on all the highest pillars (纪念柱) in the great cities of the world you will find the figure of a conqueror or a general or a soldier. And I think most people believe that the greatest countries are those that have beaten in battle the greatest number of other countries and ruled over them as conquerors. It is just possible they are, but they are not the most civilized.

    Animals fight; so do savages (野蛮人); hence to be good at fighting is to be good in the way in which an animal or a savage is good, but it is not to be civilized. Even being good at getting other people to fight for you and telling them how to do it most efficiently －this, after all, is what conquerors and generals have done －is not being civilized. People fight to settle quarrels. Fighting means killing, and civilized peoples ought to be able to find some way of settling their disputes other than by seeing which side can kill off the greater number of the other side, and then saying that that side which has killed most has won. And it not only has won, but, because it has won, has been in the right. For that is what going to war means; it means saying that might is right.

    That is what the story of mankind has on the whole been like. Even our own age has fought the two greatest wars in history, in which millions of people were killed or disabled. And while today it is true that people do not fight and kill each other in the streets －while, that is to say, we have got to the stage of keeping the rules and behaving properly to each other in daily life － nations and countries have not learnt to do this yet, and still behave like savages.

    If you are travelling in Britain, besides so many world-class things to see and do in London, planning a day trip away from it can also be worthwhile.

    Stonehenge

    Stonehenge consists of a group of huge standing stones. The 5,000-year-old stones are one of the world's biggest mysteries that no one has figured out yet. While exploring Stonehenge, you can imagine wildly and decide for yourself how the stones came to be there and why. Although you can't touch the stones, you can walk among them and feel the changes of seasons.

    Windsor

    Most people visit Windsor to see Windsor Castle, where the Queen spends most of her time. The castle itself could keep you busy for days. The best way to appreciate Windsor Castle is to approach via the Long Walk, a straight road where there are no cars, but you might see some deer.

    Oxford

    Oxford is best known for its world-famous university. The large student population keeps the atmosphere young and fresh, though there's no shortage of history if you want it. 30 colleges make up the university itself. A tour of the colleges is a must—Harry Potter fans will recognize various locations used in the movies.

    Bath

    Founded by the Romans, who used the area's springs to create a spa retreat（水疗中心）, Bath's now the best tourist attraction of Southwest England. Visitors never miss the Roman Bath Complex, which is divided into four main parts—the Bath House, the Sacred Spring, the Roman Temple and the museum, which displays fascinating finds from the historical ruins of the city.

    Before the coming of the first settlers from Europe, Canada's local people had discovered a new kind of food—maple sap(汁液)，which they gathered every spring. According to many historians, the maple leaf began to serve as a Canadian symbol as early as 1700.

    In 1834, the first St. Jean Baptise Society in North America made the maple leaf its sign. In 1836, Le Canadian, a newspaper, referred to it as a suitable symbol for Canada. In 1860, the maple leaf was used widely in decorations for the visit of the Prince of Wales. Alexander Muir wrote The Maple Leaf Forever in 1867; it was regarded as the national song for several decades. The army uniforms created the next year for Ontario and Quebec both included the maple leaf. Later the maple leaf appeared on coins. Between 1876 and 1901, it appeared on all Canadian coins. The modern one-cent piece has two maple leaves on a common twig(细枝)，a design that has gone almost unchanged since 1937.

    During the First World War, the maple leaf was included on the badge(徽章) of the Canadian Expeditionary Force. Since 1921, the Royal Arms of Canada have included three maple leaves as a special Canadian symbol. In 1939, at the time of World War Ⅱ, many Canadian troops used the maple leaf as a special sign.

    With the announcement of Canada's new flag in 1965, the maple leaf has become the Canadian symbol. On February 15 of that year, the red maple leaf flag first appeared as the National Flag of Canada.

    Ms. O'grady, the head of Britains Trades Union Congress, issued a challenge on September 10th. "We can win a four-day working week, "she told members. The demand is far from new. Shorter working weeks have been tried in New Zealand and Sweden, wherein happier, healthier and more motivated employees. Those who work shorter weeks are also reported to be more productive. Should weekends, therefore, be lengthened?

    France's experience suggests workers may not leap at the chance of working for fewer hours. The government reduced the full-time workers week to 35 hours in 2000. Last year the French worked 38.9 hours a week on average, seeming happy to labor above the required level and pocket the extra pay or holiday allowance.

    And businesses may not seize the opportunity either. Working less may be linked to higher productivity (on a per-hour basis), but overall output could still fall because of the smaller number of hours worked. That will not get governments or employers excited.

    Advocates of a four-day week could claim that improving people's quality of life is more important than boosting the economy. In an essay published during The Great Depression, John Maynard Keynes wrote of an "age of leisure and abundance" in which technological advances would allow people to work 15-hour week.

    Unfortunately for any readers working hard on a Friday afternoon, Keynes jumped at his conclusion too soon. Even Ms. O'grady, now demanding a longer weekend, is pessimistic in her timescale. A four-day week is apparently achievable “in this century”.

    Looking back on the first twenty years of my life, I feel grateful to have been so healthy and happy. For my happiness, I am grateful to so many people and lucky events, but what have guided me and supported me in my life are my physical health, healthy finances, and my family's happiness.

    Health comes first for me, because without health everything else is meaningless. Imagine starting a career without good health. Imagine starting a family without good health. Imagine achieving anything without good health. Clearly, good health is the first necessary for other part of one's life.

    Good health is not enough to be happy. We still need to have money in today's society. Money obviously pays for basic needs of life — food, housing, clothing — but it is also necessary for other reason like the quality of our education and medical care.

    Next comes the most important thing in having a happy life — our family. It provides the love, joy and support that everybody needs. I love my family with all my heart. I get pleasure from their pleasure. I suffer when they suffer. My family helped me get through the hard times of entrance exams. They comforted and advised me when I had misunderstanding with my friends. More importantly, they have been there to share in my successes in the past twenty years. In summary, all these are what I need and want in this world. As long as I stay healthy, earn enough money, and share both good times and bad times with my family, I will always be the happiest girl in the world.