SM04 双面光影板 Double-sided light and shadow board

LD乐动体育（中国）官方网站规格：85x30x120cm

通过动手操作来认识光与影的变化关系。

Know the relationship between light and shadow by manual operation. 

仔细观察，手电筒光的照射角度不同，影子的长短会不同，不同的几何片能变化出不同形状的影子，你会拼小兔、小熊的影子吗？ 

Observe carefully, and you will find that the length of shadow will vary with the irradiation angle of flashlight, and different geometrical pieces can generate shadow in different shapes.

Can you make the shadow of rabbit or bear?