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

☆☆☆☆☆
简体网页||繁体网页

下载链接1
下载链接2
下载链接3

类似图书 点击查看全场最低价

---

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

评分☆☆☆☆☆

喜欢这个故事！正版

评分☆☆☆☆☆

质量和内容都相当不错值得拥有！

评分☆☆☆☆☆

初级阅读书,为孩子准备,

评分☆☆☆☆☆

既是故事又是教学工具。

评分☆☆☆☆☆

古人云：“书中自有黄金屋，书中自有颜如玉。”可见，古人对读书的情有独钟。其实，对于任何人而言，读书最大的好处在于：它让求知的人从中获知，让无知的人变得有知。读史蒂芬?霍金的《时间简史》和《果壳中的宇宙》，畅游在粒子、生命和星体的处境中，感受智慧的光泽，犹如攀登高山一样，瞬间眼前呈现出仿佛九叠画屏般的开阔视野。于是，便像李白在诗中所写到的“庐山秀出南斗旁，屏风九叠云锦张，影落明湖青黛光”。

评分☆☆☆☆☆

　　多知识结构分级阅读趋势 “书籍是人类进步的阶梯。”“知识就是力量。”书籍是人类文明的结晶，是知识的海洋。阅读是增长知识的有效途径，是接受终身教育的最好形式。

评分☆☆☆☆☆

累积下来，效果非常好。一个暑假里读了200多本书，开口也流利了很多。会用句子而不是单词说话了，自然而然也带有一些语法结构。

评分☆☆☆☆☆

不错的分级阅读，一系列都收了

评分☆☆☆☆☆

初级阅读书,为孩子准备,

类似图书 点击查看全场最低价