Ben Franklin and the Magic Squares [平裝] [5歲及以上] epub pdf mobi txt 電子書 下載 2025

Ben Franklin and the Magic Squares [平裝] [5歲及以上] epub pdf mobi txt 電子書 下載 2025

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Ben Franklin and the Magic Squares [平裝] [5歲及以上] epub pdf mobi txt 電子書 下載 2025

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內容簡介

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!

精彩書評

"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 [平裝] [5歲及以上] epub pdf mobi txt 電子書 下載 2025

Ben Franklin and the Magic Squares [平裝] [5歲及以上] 下載 epub mobi pdf txt 電子書

評分☆☆☆☆☆

正文語種/Language: 英文

評分☆☆☆☆☆

齣版時間/Publication Date: 2001-02-27

評分☆☆☆☆☆

給孩子囤貨的，質量不錯。

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頁　　數/Pages: 48

評分☆☆☆☆☆

每個環節每天20分鍾左右，長期下來，頗有成效。

評分☆☆☆☆☆

質量和內容都相當不錯值得擁有！

評分☆☆☆☆☆

齣版時間/Publication Date: 2001-02-27

評分☆☆☆☆☆

活動的時候買的價格很優惠，質量很好，真是不錯，下次還來。

評分☆☆☆☆☆

活動的時候買的價格很優惠，質量很好，真是不錯，下次還來。

类似图書 點擊查看全場最低價