Circles

《圆》

圆,无处不在。这本书可以称着几何启蒙系列之–圆,深入浅出的介绍了圆极其相关概念,比如半径,周长等等。小朋友很小的时候就会分辨不同的形状,这本书可以为他们进入下一阶段打下基础。

Circles
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Wheels, clocks and coins. Balls and buttons. Circles are everywhere, and one of the basic geometric shapes. In a book bursting with color and cheer, students can learn the fundamental properties of circles. Terms such as sector, chord and arc are clearly defined. Hands-on activities demonstrate how to find the radium, diameter, and area of a circle. With this handy and lively guide kids can avoid spinning their wheels and get on the road to…

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