在多年的初中物理教学实践中,笔者注意到这样一个现象:限于数学知识的水平和数学技巧的掌握,初中学生在解答物理习题时,往往不注意物理规律的内在本质,不注意数学技巧的运用,而是直白地、简单地运用了数学知识,套用物理公式进行计算、推理,往往使计算过程变得冗长而复杂,计算结果又不准确。 In years of junior high school physics teaching practice, I noticed such a phenomenon: limited to the level of mathematical knowledge and mastery of math skills, junior high school students often do not pay attention to the inherent nature of the laws of physics in solving physical exercises, do not pay attention to the use of mathematical skills , But straightforwardly and simply using mathematical knowledge, applying physical formulas to calculate and reasoning often make the calculation process lengthy and complicated, and the calculation results are not accurate.