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内容简介

A funny, entertaining introduction to Ben Franklin and his many inventions, including the story of how he created the "magic square." A magic square is a box of nine numbers arranged so that any line of three numbers adds up to the same number, including on the diagonal! Teachers and kids will love finding out about this popular teaching tool that is still used in elementary schools today!

精彩书评

"In this lively offering from the Step into Reading + Math series, young readers will learn about both Benjamin Franklin and magic squares--square grids of numerals in which all the numbers in any vertical, horizontal, or diagonal row adds up to the same sum. The text introduces Franklin as a smart, curious kid whose ideas led him to "inventing cool things"; as a witty, intelligent man whose ideas were the seeds of America's first library, fire station, and hospital; and as a "super busy guy" who amused himself during meetings of the Pennsylvania Colonial Assembly by creating magic squares. An appended section offers step-by-step directions for those who want to construct their own versions of the mathematical puzzle. The engaging, informal style of the writing and the colorful, cartoonlike illustrations make this a playful but solid choice for introducing young readers to Franklin and to magic squares."
--Booklist
Ben Franklin and the Magic Squares [平装] [5岁及以上] 电子书 下载 mobi epub pdf txt

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作　　者/Author: Frank Murphy （弗兰克·墨菲） 著

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多读书，可以让你全身都有礼节。俗话说：“第一印象最重要。”从你留给别人的第一印象中，就可以让别人看出你是什么样的人。所以多读书可以让人感觉你知书答礼，颇有风度。

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感觉像是旧书，只是品相比较好点的旧书。书的边角都有磨损。但还是接受了，不想退货，麻烦。书的内容不错。

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很好，正版 ， 孩子非常喜欢。

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有时候孩子会要求先看动画后读，我也不勉强，先看后读要多读一本书，让孩子自己选择。有时候孩子会看到紧要关头难以自拔，要多看一集动画，我也不勉强，只要孩子用阅读补偿。让孩子自己体会付出与回报，学习判读与抉择。

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尺寸及重量/Dimensions & Weight: 12.19x0.51x21.84cm

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质量和内容都相当不错值得拥有！

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出 版 社/Publisher: Random House

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ＩＳＢＮ: 9780375806216

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