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提问人:网友lixin080108 发布时间:2022-01-07
[主观题]

The X-phone is a sophisticated device that combines the revolutionary Multi-Touch interface with powerful features, which one is wrong?

A.email

B.instant-messaging capability

C.a full-featured web browser

D.make video

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What's a better teaching method?Jim Munch's experienceLAST spring, when he was only a soph

What's a better teaching method?

Jim Munch's experience

LAST spring, when he was only a sophomore, Jim Munch received a plaque honoring him as top scorer on the high school math team here. He went on to earn the highest mark possible, a 5, on an Advanced Placement exam in calculus. His ambition is to become a theoretical mathematician.

So Jim might have seemed the veritable symbol for the new math curriculum installed over the last seven years in this ambitious, educated suburb of Rochester. Since seventh grade, he had been taking the "constructivist" or "inquiry" program, so named because it emphasizes pupils' constructing their own knowledge through a process of reasoning.

Jim, however, placed the credit elsewhere. His parents, an engineer and an educator, covertly tutored him in traditional math. Several teachers, in the privacy of their own classrooms, contravened the official curriculum to teach the problem-solving formulas that constructivist math denigrates as mindless memorization.

"My whole experience in math the last few years has been a struggle against the program," Jim said recently. "Whatever I've achieved, I've achieved in spite of it. Kids do not do better learning math themselves. There's a reason we go to school, which is that there's someone smarter than us with something to teach us."

The constructivist math

Such experiences and emotions have burst into public discussion and no small amount of rancor(怨恨) in the last eight months in Penfield. This community of 35 000 has become one of the most obvious fronts in the nationwide math wars, which have flared from California to Pittsburgh to the former District 2 on the Upper East Side of Manhattan, pitting progressives against traditionalists, with nothing less than America's educational and economic competitiveness at stake.

In these places and others, groups of parents have condemned constructivist math for playing down such basic computational tools as borrowing, carrying, place value, algorithms, multiplication tables and long division, while often introducing calculators into the classroom as early as first or second grade. Such criticism has run headlong into the celebration of constructivism by the National Council of Teachers of Mathematics and such leading teacher-training institutions as the Bank Street College of Education.

The strife has taken on a particular intensity here in Penfield, perhaps, because the town includes an unusually large share of engineers and scientists, because of the proximity(接近) of companies like Xerox, Kodak and Bausch & Lomb. Skilled themselves in math, they have refused to accept the premise that innovation means improvement, and in their own households they have seen evidence to the contrary.

For Joe Hoover, the epiphany came two years ago when he took his daughter, Kathryn, then in sixth grade, to lunch at McDonald's and realized she could not compute the correct change for their meal from a $ 20 bill.

For Claudia Lioy, it was seeing her daughter, Iris, then in third grade, plodding through a multiplication problem by counting 23 groups of four apples. When Mrs. Lioy pleaded with Iris's teacher simply to show the class a times table, the teacher replied, "But that's drill-and-kill."

For Ben Lee, it was having his teenage daughter, Olivia trying to answer probability problems by a method called "guess and check"-- until he pulled out his own 10thgrade math book to instruct her about the appropriate formula.

"I don't mind having kids appreciate what they learn," said Mr. Lee, an engineer who now works as a purchasing agent for Kodak. "But it's crazy to make a kid spend a night trying to solve a problem with these rudimentary and feeble tools."

Requests for more traditional math

By last spring, these parents had discovered one another

A.Y

B.N

C.NG

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