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  3. A new study shows that students learn much better through an active, iterative(反复的)process that involves working through their m

A new study shows that students learn much better through an active, iterative(反复的)process that involves working through their m

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问题     A new study shows that students learn much better through an active, iterative(反复的)process that involves working through their misconceptions with fellow students and getting immediate feedback from the instructor.
    The research was conducted by a team at the University of British Columbia (UBC), Vancouver, in Canada, led by physics Nobelist Carl Wieman. In this study, Wieman trained a postdoc, Louis Deslauriers, and a graduate student, Ellen Schelew, in an educational approach, called "deliberate practice," that asks students to think like scientists and puzzle out problems during class. For 1 week, Deslauriers and Schelew took over one section of an introductory physics course for engineering majors, which met three times for 1 hour. A tenured physics professor continued to teach another large section using the standard lecture format. The results were dramatic: After the intervention, the students in the deliberate practice section did more than twice as well on a 12-question multiple-choice test of the material as did those in the control section. They were also more engaged and a post-study survey found that nearly all said they would have liked the entire 15-week course to have been taught in the more interactive manner.
    "It’s almost certainly the case that lectures have been ineffective for centuries. But now we’ve figured out a better way to teach" that makes students an active participant in the process, Wieman says. The "deliberate practice" method begins with the instructor giving students a multiple-choice question on a particular concept, which the students discuss in small groups before answering electronically. Their answers reveal their grasp of the topic, which the instructor deals with in a short class discussion before repeating the process with the next concept.
    While previous studies have shown that this student-centered method can be more effective than teacher-led instruction, Wieman says this study attempted to provide "a particularly clean comparison... to measure exactly what can be learned inside the classroom." He hopes the study persuades faculty members to stop delivering traditional lectures and "switch over" to a more interactive approach. More than 55 courses at Colorado across several departments now offer that approach, he says, and the same thing is happening gradually at UBC.
How does the "deliberate practice" method work?
选项 A、Students are first presented with some open questions.
B、Students have to hand in paper-based homework.
C、The instructor asks students to grasp concepts through group discussion.
D、The instructor expects students to express their opinions freely at any time.
答案C
解析 细节辨认题。定位句指出，“刻意练习”方法开始于老师就某个特定概念给出一道多项选择题，学生们以小组的形式进行讨论，然后通过电子方式回答问题。他们的答案显示了对该话题的理解程度，老师会通过小型的班级讨论的方式分析他们的答案，然后用同样的方式讲解下一个概念。故正确答案为C)“老师让学生通过小组讨论来理解概念”。
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