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The annual Phi Delta Kappa/Gallup poll of attitudes towards public education released this week found that a majority of Americans feel it is important to put a "qualified, competent teacher in every classroom". Bob Chase, president of the National Education Association (NEA), the main teachers’ union, wasted no time in pointing out that this will require raising teachers’ salaries so that more qualified candidates will enter the profession and stay there. A study by two economists suggests that the quality of America’s teachers has more to do with how they are paid rather than how much. The pay of American public school. teachers is not based on any measure _of performance; instead, it is determined by a rigid formula based on experience and years of schooling. factors massively unimportant in deciding how well students do. The uniform pay scale invites what economists call adverse selection. Since the most talented teachers are also likely to be good at other professions, they have a strong incentive to leave education for jobs in which pay is more closely linked to productivity. For dullards(笨蛋), the incentives are just the opposite. The data are striking: when test scores are used as a proxy (代替物) for ability, the brightest individuals shun the teaching profession at every juncture. Clever students are the least likely to choose education as a major at university. Among students who do major in education, those with higher test scores are less likely to become teachers. And among individuals who enter teaching, those with the highest test scores are the most likely to leave the profession early. The study takes into consideration the effects of a nationwide 20% real increase in teacher salaries during the 1980s. It concludes that it had no appreciable effect on overall teacher quality, in large part because schools do a poor job of recruiting and selecting the best teachers. Also, even if higher salaries lure more qualified candidates into the profession, the overall effect on quality may be offset by mediocre teachers who choose to postpone retirement. The study also takes aim at teacher training. Every state requires that teachers be licensed, a process that can involve up to two years of education classes, even for those who have a university degree or a graduate degree in the field they would like to teach. Inevitably, this system does little to lure in graduates of top universities or professionals who would like to enter teaching at mid-career. We can conclude from the passage that ______.
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A sign that Hispanics will dominate California’s future is that a university study has found the ethnic accounted for nearly half of all births in the state by the end of the last decade. Hispanic mothers had 247,796 of the 521,265 children born in California in 1998, or 47.5 percent, according to the University of California at Los Angeles study released in December 2001. Non-Hispanic Whites had 33.9 percent, followed by Asians and Pacific Islanders with 10.7 percent. Blacks represented 6.8 percent of births and American Indians had 0.5 percent of all births. California’s future economic health depends upon those Hispanics, who soon will be the majority of young adults and hence the working force, says David Hayes-Bautista, director of the Center for the Study of Latino Health and Culture at UCLA. The study, based on state health department statistics, confirms the ethnic shift that made 2001 the year California officially lost its White majority. The U.S. Census showed that Hispanics made up nearly a third while non-Hispanic Whites slipped to less than half of the state’s total population of 33.9 million. California’s experience is part of a "sea change" in the United States, where 23 states already have Hispanics as their largest ethnic minority. Dr. Harry Pachon says, "Hispanics are becoming more prominent in everything from movies to politics, and that is good for the state. If there was no penetration of social and political institutions, then you would have an isolated minority and that’s a recipe for social unrest. On the other hand, by the third generation, one of every two Hispanics have married outside of their ethnic group. There’s a Latinization of America but there’s also an Americanization of Latinos. By third generation, a lot of them are losing their Spanish; they prefer American NFL to soccer." Overall, nearly 65 percent of all Hispanic mothers were immigrants, ranking them second to Asian and Pacific Islanders at more than 84 percent. The babies tend to grow up healthy as well. Studies have shown that at virtually all stages of life, Hispanics, at least in California, Arizona and Texas, tended to suffer fewer major health problems, such as heart attacks, cancer and strokes, than other ethnic groups, Hayes-Bautista noted. Only about 15 percent of Hispanic mothers were 19 years old or younger. By comparison, nearly 17 percent of Blacks and 19 percent of American Indians were teenagers. Non-Hispanic Whites had a figure of nearly 7 percent. Which of the following statements is Dr. Harry Pachon most likely to agree with
Bringing up children is a hard work，and you are often to blame for any bad behavior of your children．If so，Judith Rich has good news for you．Parents．she argues，have no important long-term effects on the development of the personality of their children. Far more important are their playground friends and neighborhood. Ms. Harris takes to hitting the assumption, which has dominated developmental psychology for almost half a century. Ms. Harris’s attack on the developmentalists’ "nature" argument looks likely to reinforce doubts that the profession was already having. If parents matter, why is it that two adopted children, reared in the same home, are no more similar in personality than two adopted children reared in separate homes Or that a pair of identical twins, reared in the same home, are no more alike than a pair of identical twins reared in different homes Difficult as it is to track the precise effects of parental upbringing, it may be harder to measure the exact influence of the peer group in childhood and adolescence. Ms. Harris points to how children from immigrant homes soon learn not to speak at school in the way their parents speak. But acquiring a language is surely a skill, rather than a characteristic of the sort developmental psychologists hunt for. Certainly it is different from growing tip tensely or relaxed, or from learning to be honest or hard working or generous. Easy though it may be to prove that parents have little impact on those qualities, it will be hard to prove that peers have vastly more. Moreover, mum and dad surely cannot be ditched completely. Young adults may, as Ms. Harris argues, be keen to appear like their peers. But even in those early years, parents have the power to open doors: they may initially choose the peers with whom their young associate, and pick that influential neighborhood. Moreover, most people suspect that they come to resemble their parents more in middle age and that people’s child bearing habits may be formed partly by what their parents did. So the balance of influences is probably complicated, as most parents already suspected without being able to demonstrate it scientifically. Even if it turns out that the genes they pass on and the friends their children play with matter as much as affection, discipline and good example, parents are not completely off the hook. According to Par
Many objects in daily use have clearly been influenced by science, but their form and function, their dimensions and appearance were determined by technologists, artisans, designers, inventors, and engineers--using nonscientific modes of thought. Many features and qualities of the objects that a technologist thinks about cannot be reduced to unambiguous verbal descriptions; they are dealt with in the mind by a visual, nonverbal process. ①In the development of Western technology, it has he en nonverbal thinking, by and large, that has fixed the outlines and filled in the details; and rockets exist not because of geometry or thermodynamics (热力学), but because they were first a picture in the minds of those who built them. The creative shaping process of a technologist’s mind can be seen in nearly every artifact that exists. For example, in designing a diesel engine, a technologist might impress individual ways of nonverbal thinking on the machine by continually using an intuitive sense of rightness and fitness. What would be the shape of the combustion chamber Where should the valves be placed Should it have a long or short piston Such questions have a range of answers that are supplied by experience, by physical requirements, by limitations of available space, and not least by a sense of form. Some decisions, such as wall thickness and pin diameter, may depend on scientific calculations, but the nonscientific component of design remains primary. Design courses, then, should be an essential element in engineering curricula. Nonverbal thinking, a central mechanism in engineering design, involves perceptions, the stock in trade of the artist, not the scientist. ②Because perceptive processes are not assumed to entail. "hard thinking", nonverbal thought is sometimes seen as a primitive stage in the development of cognitive processes and infeiror to verbal or mathematical thought, ③But it is paradoxical that when the staff of the Historic American Engineering Record wished to have drawings made of machines and isometric(等比例 的)views of industrial processes for its historical record of American engineering, the only college students with the requisite abilities were not engineering students, but rather students attending architectural schools. ④If courses in design, which in a strong]y analytial engineering curriculum provide the backgound required" for practical problem solving, are not provided, we can expect to encounter silly but costly enors gccurring in advanced engineering systems. For example, early models of high-speed railroad cars loaded with high-tech controls were unable to operate in a snowstorm because the fan sucked snow into the electrical system. ⑤Absurd random failures that plague automatic control systems are not merely trivital aberrations(失常); they are a reflection of the chaos that results when design is assumed to be primarily a prgblem in mathematics: What can we infer from the first two paragraphs
Bringing up children is a hard work，and you are often to blame for any bad behavior of your children．If so，Judith Rich has good news for you．Parents．she argues，have no important long-term effects on the development of the personality of their children. Far more important are their playground friends and neighborhood. Ms. Harris takes to hitting the assumption, which has dominated developmental psychology for almost half a century. Ms. Harris’s attack on the developmentalists’ "nature" argument looks likely to reinforce doubts that the profession was already having. If parents matter, why is it that two adopted children, reared in the same home, are no more similar in personality than two adopted children reared in separate homes Or that a pair of identical twins, reared in the same home, are no more alike than a pair of identical twins reared in different homes Difficult as it is to track the precise effects of parental upbringing, it may be harder to measure the exact influence of the peer group in childhood and adolescence. Ms. Harris points to how children from immigrant homes soon learn not to speak at school in the way their parents speak. But acquiring a language is surely a skill, rather than a characteristic of the sort developmental psychologists hunt for. Certainly it is different from growing tip tensely or relaxed, or from learning to be honest or hard working or generous. Easy though it may be to prove that parents have little impact on those qualities, it will be hard to prove that peers have vastly more. Moreover, mum and dad surely cannot be ditched completely. Young adults may, as Ms. Harris argues, be keen to appear like their peers. But even in those early years, parents have the power to open doors: they may initially choose the peers with whom their young associate, and pick that influential neighborhood. Moreover, most people suspect that they come to resemble their parents more in middle age and that people’s child bearing habits may be formed partly by what their parents did. So the balance of influences is probably complicated, as most parents already suspected without being able to demonstrate it scientifically. Even if it turns out that the genes they pass on and the friends their children play with matter as much as affection, discipline and good example, parents are not completely off the hook. Which of the following views is consistent with what the developmentalists hold
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