所谓设计型实验就是根据实验要求,运用掌握的物理概念和规律、实验方法,选择仪器设计实验方案,达到相应的实验目的。设计型实验题,考查内容涉及设计实验原理,选择实验器材,安排实验步骤,分析实验数据或由实验现象得出结论等。近几年,各地的中考试卷中出现了一些设计型实验题.这类实验题是培养学生创新意识和创新能力的较好题型和有效途径。随着课程改革的逐步深入,这种题型仍是今后中考的热点,但学生对设计型实验题的答题能力还比较薄弱。因此,平时要加强实验教学,包括演示实验、学生分组实验和 The so-called design experiment is based on experimental requirements, the use of the grasp of the physical concepts and laws, experimental methods, select the instrument design experiment program to achieve the appropriate experimental purposes. Design-based test questions, test content involves the design of experimental principles, the choice of experimental equipment, arrangements for experimental steps, analysis of experimental data or experimental conclusions drawn. In recent years, there have been some design experiment questions in the middle school examination papers all over the country, which are the better questions and effective ways to cultivate students’ innovative awareness and innovation ability. With the gradual deepening of the curriculum reform, this type of question is still the hot spot in the future examinations, but students’ ability to answer design questions is still relatively weak. Therefore, we should usually strengthen the experimental teaching, including demonstration experiments, student group experiments and