在初中物理教学中,有些问题需用数学知识解答,但在解决问题时,若“纯数学”处理,就会出现违背物理规律,使结论不符合客观实际。因此在物理教学中应注意培养学生运用好数学知识解决问题的能力。根据我的体会,在运用时应注意以下几点:一、四舍五入法在物理上不一定适用 In junior high school physics teaching, some questions need to be solved by mathematical knowledge. However, when solving the problem, if we deal with pure mathematics, we will violate the laws of physics and make the conclusions not conform to the objective reality. Therefore, in physical teaching should pay attention to cultivate students’ ability of using mathematical knowledge to solve the problem. According to my experience, should pay attention to the following points: First, the rounding law does not necessarily apply physically