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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听录音不是奖励也不是鼓励。如果孩子喜欢这部动画，就会自然希望听到录音。

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商品编号：19016225

评分☆☆☆☆☆

听录音不是奖励也不是鼓励。如果孩子喜欢这部动画，就会自然希望听到录音。

评分☆☆☆☆☆

good!!!!!!!!!!!!!!!!!!!!!!!!

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书还蛮厚呢，呵呵200-100入的，值啊！晒单。

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

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孩子喜欢的书，值得买推荐

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多读书，可以让你觉得有许多的写作灵感。可以让你在写作文的方法上用的更好。在写作的时候，我们往往可以运用一些书中的好词好句和生活哲理。让别人觉得你更富有文采，美感。

评分☆☆☆☆☆

物美价廉，兰登书屋棒！

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