随着中学物理教学改革的不断深入,物理说理题的习题份量越趋增加,这是因为它对培养学生应用物理知识解决实际问题的能力是与计算题相提并论的,并起了相辅相成的作用,而当前说理题的教与学被公认为“老大难”.学生对于计算题,只要他懂得运用那些物理公式,一般他就能作出正确的书面解答,这是因为计算题有统一规范的格式,他们入手容易,推理熟练,即顺理成章,这是解答计算题成功之所在.而对说理题却出现:明明知道是运用那些 With the continuous deepening of the reform of physics teaching in middle schools, the volume of exercises for physics topics has increased. This is because its ability to train students in applying physical knowledge to solve practical problems is on a par with that of calculations, and it plays a complementary role. At present, the teaching and learning of the subject are recognized as “the eldest father”. Students can use the physical formulae as long as they know how to apply the physical formulas. Generally, he can make correct written answers because the calculation questions have a uniform and standardized format. , they start easily, reasoning proficiently, that is logical, this is the answer to the success of the calculation problem. But the problem has emerged: it is clear that the use of those