Ben Franklin and the Magic Squares [平装] [5岁及以上] epub pdf mobi txt 电子书 下载 2024

Ben Franklin and the Magic Squares [平装] [5岁及以上] epub pdf mobi txt 电子书 下载 2024

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Ben Franklin and the Magic Squares [平装] [5岁及以上] epub pdf mobi txt 电子书 下载 2024

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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] epub pdf mobi txt 电子书 下载 2024

Ben Franklin and the Magic Squares [平装] [5岁及以上] 下载 epub mobi pdf txt 电子书 2024

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太好的图书了，为什么总是没有卖的

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喜欢这个故事！正版

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定 价：￥29.30

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装　　帧/Format: 平装

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幻方……学奥数的是不是很有熟悉感。兰登出品，必属精品。很值得收一本了解了解富兰克林

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

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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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商品编号：19016225

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活动的时候买的价格很优惠，质量很好，真是不错，下次还来。

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