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小学六年级至初中阶段,学生喉部的发育变化是非常明显的。如出现喉部不适感,声音逐渐嘶哑或突然嘶哑,说话、演唱时声音变粗变低。医学上把这种现象称为变声期。如何让学生安全的度过变声期,培养良好的发声习惯,发展他们的发音能力,以使学生终身受益,是音乐教师最重要的工作之一。一、变声期发声器官的生理变化及保健一个人从少年期进入青年期,由于性激素不断增加,在身体其他部位变化的同时,会出现声带变长、喉结突出,间接喉镜检查可见声带充血、水肿及一般分泌物增多,声门后半部在变声中期会出现闭合不全即“变声三角”等现象。这些都是变声期中的自然生理现象。变声期中的男生与女生是有一定差异的。变声期开始的年龄一般是:男生12～15岁、女生11～14岁(武汉市变声期年龄男生多在13～14岁,相当初中一年级;女生多在12～13岁,相当小学六年级至初中
Primary sixth grade to junior high school, the development of students laryngeal changes is very obvious. In case of laryngeal discomfort, the voice gradually hoarseness or sudden hoarseness, talking, singing voice becomes thicker and lower. This phenomenon of medicine is called vocalization. It is one of the most important tasks for music teachers to make students safely spend the vocal period, cultivate good vocal habits and develop their pronunciation ability so as to benefit the students for life. First, the sound changes during vocal organ physiological changes and health A person from adolescence into adolescence, as sex hormones continue to increase in other parts of the body changes at the same time, there will be vocal cord becomes longer, prominent Adam's apple, indirect laryngoscopy visible vocal cord hyperemia, Edema and the general increase in secretions, the latter half of the glottis will appear in the middle of the change of voice is incomplete “vocalization triangle” and so on. These are the natural physiological phenomena in the vocal period. There are some differences between boys and girls in the vocal period. The beginning age of the vocal period is generally: boys 12 to 15 years old, girls 11 to 14 years old (Wuhan City voice age boys and girls more than 13 to 14 years old, equivalent to the first grade; girls and more in 12 to 13 years old, To junior high school