第六课

 6.Sound 声音的变化

1. Why when playing guzheng, guzheng can make high and low ups and downs, strong and weak different sound?为什么弹奏古筝时，古筝能发出高低起伏、强弱不同的声音呢?

2. Material package材料包

3. steel ruler, plank, etc.钢尺、 木板等。

4. Activity process活动过程

5. Feel the sound changes in nature. 感受自然界中声音的变化。

6. Goose calls鹅的叫声

7. Sound is divided into high and low, strong and weak. 声音有高低、强弱之分。

8. How to change the level of sound, strong or weak?怎样改变声音的高低、强弱？

9. Thinking Navigation思维导航

10. With the hand to extend the length of the table with different steel ruler, steel ruler vibration is different? 用手拨动伸出桌面长短不同的钢尺，钢尺的震动有什么不同?

11. 2.What is the difference in the sound of a steel ruler extending out of the table?伸出桌面不同长度的钢尺发出的声音有什么不同?

12. Beat the same position of the drum surface with greater force, the sound …用更大的力敲鼓面的同一位置，声音.....

13. Make a water cup piano.制作水杯琴。

14. Knock on the water cup, sound...敲水多的杯子，声音.....

15. Outreach activities拓展活动

16. Look for information to understand the ancient Chinese five string piano.查找资料，了解我国古代的五弦琴。