孩子们做动作时为什么要喊叫呢？也有“技术要求”吗？
Why do children yell when they do actions? Is there also a "technical requirement"?
是的。跆拳道这项运动很讲究气势，所以在上课时，要求每一个动作都要配合发出声音。如果是针对大人，一般是要求胸腔发音，要浑厚、有力量。
Yes. Taekwondo is a sport that pays attention to momentum, so in class, every action is required to cooperate with the voice. If it's for adults, it's generally required to have chest pronunciation, which should be thick and powerful.
对孩子没有那么高的要求以免他们紧张，一般教练先做示范，然后就看孩子自己的理解了。随着学习的慢慢深入，孩子会慢慢体会正确的发声方法。
There are not so high requirements for children to avoid their tension. Generally, the coach first makes a demonstration, and then depends on the children's own understanding. Along with the study slowly thorough, the child will slowly realize the correct phonation method.
初学跆拳道，一周一次课可以吗?
Is it OK to learn Taekwondo once a week?
对于6到12岁的孩子，上课频率其实没有固定的要求，这取决于孩子的兴趣程度。如果孩子很喜欢，对晋级的期望比较强，最好是一周两次课。
For children aged 6 to 12, there is no fixed requirement for class frequency, which depends on the degree of interest of the children. If the child likes it very much and has strong expectations for promotion, it's better to have classes twice a week.
因为如果一周一次课，父母在家里又没有条件辅导，很可能下次上课时就把上一节课的内容忘记了，还需要花时间复习，这样学习新内容的时间就会缩短，进度也就慢一些。
Because if one class a week, parents at home and no conditions for counseling, it is likely that the next class will forget the content of the previous class, but also need to take time to review, so that the time to learn new content will be shortened, the progress will be slower.