这篇SWT主要讲的是教育科技的一段历史和它目前的状况，信息点较多，所以建议可以先通读一遍，理解清楚主要意思，更方便大家在摘取信息时有一个明确的方向。同时这篇文章有很多的同义替换句，所以注意尽量避免信息点的重复，因为会比较占用字数。

In 1953 B.F. Skinner visited his daughter’smaths class. The Harvard psychologist found every pupil learning the same topic in the same way at the same speed. A few days later he built his first "teaching machine", which let children tackle questions at their own pace. By the mid-1960s similar gizmos were being flogged by door-to door salesmen. Within a few years,though, enthusiasm for them had fizzled out. Since then education technology (edtech) has repeated the cycle of hype and flop, even as computers have reshaped almost every other part of life. One reason is the conservatism of teachers and their unions. But another is that the brain-stretching potential of edtech has remained unproven.

这是该篇文章的第一段，假设我们考试在做这道SWT，如何判断我们要抓取的重点信息呢？首先建议花一部分时间通读一遍，完成这个步骤，可以理解到本段以发明第一个教育工具的人B.F. Skinner的故事开始，引出了教育工具这个话题。第一个信息点可以是：he built his first "teaching machine", which let children tacklequestions at their own pace.接下来其实一直在拓展教育工具这个事情，属于过于细节的信息，直到这一句的出现：education technology (edtech) has repeated the cycle of hype and flop.这一句实际上是对于以上信息的一个总结，说明的是教育工具从1953年开始一直到现在就处于起起落落的状态。最后给出了发生这种现象的两个原因：一个是conservatism of teachers另一个是the brain-stretchingpotential of edtech has remained unproven.

Today, however, Skinner’s heirs are forcing the sceptics to think again (see article). Backed by billionaire techies such as Mark Zuckerberg and Bill Gates, schools around the world are using new software to "personalize" learning. This could help hundreds of millions of children stuck in dismal classes—but only if edtech boosters can resist the temptation to revive harmful ideas about how children learn. To succeed, edtech must be at the service of teaching, not the other way around.

这一段主要说明的是第一句话的内容Skinner’s heirs are forcing the sceptics to think again，意思是现在教育技术的优势又一次被提出，之后给出了具体的优势(可以不作为重点)：This could help hundreds of millions of children stuck in dismal classes，但加了一个前提条件edtech must be at the service of teaching. 该段中有很多重复性的语言，如果你们可以找到其它句子意思和以上的相仿也是可以的，但注意一个意思只用说一遍，不需要把表达重复信息的句子列为重点。

The conventional model of schooling emerged in Prussia in the 18th century. Alternatives have so far failed to teach as many children as efficiently. Classrooms, hierarchical year-groups, standardized curriculums and fixed timetables are still the norm for most of the world’s nearly 1.5bn schoolchildren.

这一段主要说传统教育从哪里开始，而且是现在最普及的教育形式，现在这些替代方案并未有效地覆盖到足够数量地学生。重点的信息可以整合出两个句子体现出来：The conventional model of schooling are still the norm for most of the world’s schoolchildren.  Alternatives have so far failed to teach as many children as efficiently.

重要信息点列出如下:

1. Since B.F. Skinner built his first"teaching machine", education technology (edtech) has repeated the cycle of hype and flop due to conservatism of teachers and the uncertainty of the brain-stretchingpotential of edtech.

2. Skinner’s heirs are forcing thesceptics to think again about the benefit of edtech which must be at the serviceof teaching.

3. Alternatives of conventional teaching are still not efficient.

参考答案：

Since B.F. Skinner built his first "teaching machine", education technology has repeated the cycle of hype and flop due to conservatism of teachers and the uncertainty of the brain-stretching potential of edtech; recently, kinner’s heirs are forcing the sceptics to think again about the benefit of edtech which must be at the service of teaching, although alternatives of conventional teaching are still not efficient compared to the conventional one.

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