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

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

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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 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] epub pdf mobi txt 电子书 下载 2025

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

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多读书，可以让你多增加一些课外知识。培根先生说过：“知识就是力量。”不错，多读书，增长了课外知识，可以让你感到浑身充满了一股力量。这种力量可以激励着你不断地前进，不断地成长。从书中，你往往可以发现自己身上的不足之处，使你不断地改正错误，摆正自己前进的方向。所以，书也是我们的良师益友。

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装　　帧/Format: 平装

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正文语种/Language: 英文

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既是故事又是教学工具。

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物美价廉，兰登书屋棒！

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精彩的图画,介绍了人体骨骼

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6月份下单，四个月后才收到，这还是拆单收到一部分，剩下得也不想取消，万一取消了再把我拉黑……

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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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定 价：￥29.30

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