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在声现象的教学中,作为教学重点与难点的《声音的特性》,需要教师采取全新的教学方式,才能实现三维教学目标。对于音调和响度的教学,可以采用实例与实验相结合的方式,期间,学生作为主体,教师只是引导和总结。在八年级上学期声现象的教学中,《声音的特性》是教学重点和难点所在。在这一节中,教师不仅需要引导学生理解声音的音调、响度、音色三个基本特征以及对声音产生的影响,并且掌握影响这三个基本特征变化的决定因素以及是
In the teaching of acoustic phenomenon, “the characteristic of voice” as the key and difficult point of teaching requires teachers to adopt brand-new teaching methods in order to achieve the goal of three-dimensional teaching. For the teaching of pitch and loudness, you can use a combination of examples and experiments, during which students as the main body, the teacher is only guide and summarize. In the eighth grade semester sound phenomena teaching, “the characteristics of the sound” is the teaching of the key and difficult. In this section, teachers not only need to guide students to understand the three basic characteristics of sound, such as pitch, loudness, timbre, and their effects on sound, but also to master the determinants that affect the changes of the three basic features and