在中学生物理竞赛中,不难发现这样一类试题:题目描述的物理情境并不陌生,所涉及的物理知识也并不复杂,若能恰当地运用数学技巧求解,问题就可顺利得到解决.然而,选手在处理这类问题时,往往由于不能灵活运用数学技巧而前功尽弃.辅导教师在对参赛选手进行物理知识传授、物理方法渗 In the middle school students’ physics competition, it is not difficult to find such questions: the physical context in which the topic is described is not new, and the physical knowledge involved is not complicated. If mathematical techniques can be properly used to solve the problem, the problem can be solved successfully. When players are dealing with such issues, they are often unable to use mathematical skills flexibly and their skills have been abandoned. The instructors teach the players physical knowledge and physical methods.