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一、探索的内容应是“未知的”在美国1988年出版的《社会中的化学》一书,要求学生完成的47个实验中没有一个是学生“已知”的实验,教师在教学过程中也不采用验证式的教学模式,学生在课本上、课堂上根本找不到现成的实验结果,学生必须自己动手做实验,进行观察和记录。而在我国初中化学实验教学中,即使是探索性实验,多数教师都会将实验原理、操作步骤、反应现象、实验结论在黑板上详细列出。这种验证式的教学模式使学生进入实验室后不必
First, the content of the exploration should be “unknown.” In the book “Chemistry in Society” published by the United States in 1988, none of the 47 experiments that students had completed were students’ “known” experiments, teachers In the process of teaching nor verify the use of teaching mode, the students in the textbook, the class can not find ready-made experimental results, students must do their own experiments, observation and record. In our junior high school chemistry experiment teaching, even the exploratory experiments, most teachers will list the experimental principles, operation steps, reaction phenomena and experimental conclusions on the blackboard. This proof-of-concept teaching model eliminates the need for students to enter the lab