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长度的测量是初中物理的入门章节,除常规的测量方法外还有很多的特殊方法,是教学的重点与难点。如何引导学生在实际测量中,开动脑筋,灵活运用所学知识,找到更准确、更简便的测量方法.其中蕴含着丰富的物理思维方法,尤其要善于运用转化思维,将未知的、陌生的、复杂的问题转化为己知的、熟悉的、简单的问题。本文拟结合具体教学案例,巧妙运用转化思维,总结出几种特殊方法,解决长度测量中的困难。
The measurement of length is an introductory chapter of junior high school physics. In addition to the conventional measurement methods, there are many special methods that are the focus and difficulty of teaching. How to guide students in the actual measurement, use their brains, and make flexible use of the knowledge they have learned to find more accurate and simpler measurement methods. There are a wealth of physical thinking methods, especially in the use of transformational thinking, the unknown, unfamiliar, Complex issues translate into known, familiar and simple questions. This article intends to combine specific teaching cases, clever use of conversion thinking, summed up several special methods to solve the difficulties in length measurement.