1, the correct whistling method should be: when whistling, first put the whistle mouth in the mouth, and bite the inside of the whistle mouth with the upper and lower incisors-the upper and lower flanges, and the tightness should be based on the fact that the whistle will not be blown off between the upper and lower teeth when whistling. The tip of the tongue should be slightly blocked, and the upper and lower lips should wrap around the neck of the whistle to prevent the chest and abdominal muscles from contracting hard and increase the pressure in the chest cavity. At the same time, the nasal cavity will be closed. Then the tip of the tongue suddenly retracts to open the whistle and let the air flow into the whistle. Blow the whistle. The strength and volume of the whistle are determined by the blowing strength. No matter how long the whistle is, you need confidence? The tip of the tongue is pointed at the whistle, and it gets angry instantly, otherwise it is easy to form "air leakage", the whistle is unclear, and the due effect cannot be achieved. Beginners tend to stretch their cheeks, tongue and lips forward, relax and have a big damper. The local dialect blows like a fire box, and the air blown out is not urgent or weak, so the whistle is not bright. ?

2. Types of whistles: ① The common whistle combination skills in physical education class are: "Du-!" A shrill voice indicates the beginning of an action or segment: "DuDu!" Two short voices to remind or attract students' attention: "Du-!" (Voice from high to low), slow down, indicating the end or pause of the action segment: "DuDu-!" (voice from low to high), which means warning, stopping or correcting students who violate classroom discipline: "DuDu-DuDu!" , which means emergency assembly: DuDu! "(voice from low to high and then to low), indicating that the practice of the group is rotation and so on. (2) How does physical education class whistle patterns? The whistling patterns are controlled by the extension and contraction of the tip of the tongue and the strength of the airflow, such as 1.2- 1.2, 1, strong airflow and weak airflow. For example, weak vertical airflow, strong vertical airflow, strong synchronous airflow and strong synchronous airflow. There are strong and weak blowing methods such as "looking to the left" and "looking forward"