| 1. | 1 . put different objects in the two mirror wells 1 .将不同的物件分别放入两个镜井中。 |
| 2. | 1 . choose a grid and put it carefully in the mirror well 1 .选取一个网格,小心放入镜井内。 |
| 3. | Choose a picture block and put it carefullly in the mirror well 选取图形,小心放进镜井之中。 |
| 4. | 1 . choose a picture block and put it carefullly in the mirror well 1 .选取图形,小心放进镜井之中。 |
| 5. | Put some other objects in the mirror well and see how the regular polyhedron changes 随意放进其他物件,看看正多面体的变化。 |
| 6. | 3 . put some other objects in the mirror well and see how the regular polyhedron changes 3 .随意放进其他物件,看看正多面体的变化。 |
| 7. | Can you find an object that can produce the same polyheron in different mirror wells 你能否找到一对物件在不同的镜井可以组成相同的立体形状? |
| 8. | The number of images including the real object formed equals the number of faces possessed by the polyhedron . needless to say , mirror wells are very useful in designing interesting 3d patterns 在这种镜井中,放入的任何物件均会产生与多面体的面数相同的像实像加镜像。 |
| 9. | The number of images ( including the real object ) formed equals the number of faces possessed by the polyhedron . needless to say , mirror wells are very useful in designing interesting 3d patterns 在这种镜井中,放入的任何物件均会产生与多面体的面数相同的像(实像加镜像) 。 |