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近段时间连续听了十余节不同层次的科学研究课,发现教师往往非常重视学生的探究实验,而相对忽视演示实验。究其原因,可能是教师认识上存在一些误区:
Recently listened to more than ten sections of scientific research at different levels and found that teachers often attach great importance to students' exploratory experiments, but relatively ignore the demonstration experiments. The reason may be some misunderstanding on the part of teachers: