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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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ＩＳＢＮ: 9780375806216

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书还蛮厚呢，呵呵200-100入的，值啊！晒单。

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精读英语动画主要分三部分：看动画、听录音、读绘本。

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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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出 版 社/Publisher: Random House

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兰登书屋这个儿童读物分级系列不错！一直在买，一直结合孩子的阅读和成长特点，再给他选择适合的主题读物，有内容有一定难度坡度的。孩子读下去水平一定会有提高。

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一、看动画

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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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装订非常一般，内容不错，简单有趣。

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