Ben Franklin and the Magic Squares [平装] [5岁及以上] 下载 mobi epub pdf 电子书 2025

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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] 下载 mobi epub pdf txt 电子书 格式

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

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所属分类/Category: 图书 > 英文原版书 > Children's Books（儿童图书）

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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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装订非常一般，内容不错，简单有趣。

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页　　数/Pages: 48

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买来是屯着的，趁着京东的活动入的，满300-120，感觉还划算的。阅读是指以图画读物为主，以看、听、说有机结合为主要手段，从兴趣入手，萌发孩子热爱图书的情感，丰富孩子的阅读经验、提高阅读能力。等孩子大点就可以进入这类桥梁书的阅读了。故事都是特别有意思的，好适合孩子，感觉还不错，值得购入啊，现在一买就不可收拾，已经买好几本了，太喜欢了，希望孩子也喜欢啊。

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很喜欢，挑不出毛病，又划算，完美。

评分☆☆☆☆☆

很喜欢，挑不出毛病，又划算，完美。

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多读书，可以让你变聪明，变得有智慧去战胜对手。书让你变得更聪明，你就可以勇敢地面对困难。让你用自己的方法来解决这个问题。这样，你又向你自己的人生道路上迈出了一步。

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