短路教学难点的分析与突破王有余⒇（江苏省兴化市教委教研室２２５７００）电路是初中物理电学部分的教学重点，而有关“短路”问题又是电路教学中的难点．历年来，各地中考试题由于受教学大纲中对混联电路计算不作要求的束缚，降低了电路计算题的难度．但为使试题具有一... Analysis and Breakthrough of Difficulties in Short-circuit Teaching Wang Youyu (20) (Department of Teaching and Research, Education Department, Xinghua City, Jiangsu Province, 225700) The circuit is the teaching focus of the junior middle school physics, and the “short-circuit” problem is also a difficulty in circuit teaching. Over the years, local middle school test subjects have reduced the difficulty of calculating circuit problems due to the constraints imposed on the calculation of the hybrid circuit in the syllabus. But to make the test have a...