【摘 要】
：
在实验教学过程中,由于多种因素的影响,往往会观察到一些与预期的正常实验结果不相符的现象,我们称之为异常现象。实验中异常现象的出现,会给学生造成认知上的错觉,教师若不
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在实验教学过程中,由于多种因素的影响,往往会观察到一些与预期的正常实验结果不相符的现象,我们称之为异常现象。实验中异常现象的出现,会给学生造成认知上的错觉,教师若不及时正确的引导和彻底的解决,势必会影响教学效果,给学生留下知识盲点。笔者现根据多年的教学实践经验,对现行高中化学教材分组实验
In the process of experimental teaching, due to many factors, we often observe some phenomena that are inconsistent with the expected normal experimental results, which we call abnormal phenomena. The appearance of abnormal phenomena in the experiment will give students an illusion of cognition. If teachers do not correctly guide and thoroughly solve the problems in time, they will inevitably affect the teaching effect and leave a blind spot for students. The author is based on years of teaching experience, the current high school chemistry textbooks group experiment
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