在初中物理的学习中,对于学生而言,计算题是仅次于实验探究题的难题,而计算题中又是以电学计算题的难度最大。而在中考中,往往在计算题的考察中也是以电学计算题为主。那如何让击破计算题,尤其是电学计算题,对于教师来说也是一个很大的教学难点。对于学有余力的学生而言,可能计算题并不是他们的困难所在,但是对于大部分中等甚至是学困生而言,计算题就是 Physics study in junior high school, for students, computational problems is second only to the experimental exploration of the problem, and computational problems are the most difficult to calculate electrical problems. In the senior high school entrance examination, often in the calculation of the study is also based on electrical calculations. That how to break the calculation, especially the electrical calculation, is also a great teaching difficulty for teachers. For students who have spare capacity, it may not be their problem, but for most middle-school students, the calculation is