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在现行教科书中,《初中物理》安排了180多个演示实验,学生分组实验19个；《高中物理》也安排了100多个演示实验,学生分组实验17个。可见实验教学是中学物理教学中极其重要的组成部分。成功的实验演示,可保证教学顺利地进行,失败的实验演示,会引起学生许多不必要的疑虑,容易转移
In the current textbooks, “Junior High School Physics” arranged more than 180 demonstration experiments and 19 students grouped experiments. “High School Physics” also arranged more than 100 demonstration experiments and 17 students grouped experiments. It can be seen that experimental teaching is an extremely important part of middle school physics teaching. The successful demonstration of the experiment can ensure that the teaching progresses smoothly. The failed demonstration of the experiment will cause many unnecessary doubts and easily transfer the students.