论文部分内容阅读
在科学课“声音在空气中的传播”一节教学中,学生不能透彻理解声音通过空气振动传播的道理。因此,笔者制作了“声音在空气中的传播”的教具。该教具可以让学生对概念性的知识有直观的印象,让学生对声音的传播需要介质等知识点有深刻的认识。一、制作材料易拉罐、气球、橡皮筋、底座、小木槌。
In the science lesson, “The Propagation of Sound in the Air”, students can not fully understand the truth that sound propagates through the air vibrations. Therefore, I made a “teaching of the spread of sound in the air”. The teaching aids allow students to have a visual impression of conceptual knowledge and enable students to gain a deep understanding of how media needs knowledge such as the spread of sound. First, making materials cans, balloons, rubber bands, base, gavel.