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在化学教学中,教师对学生知识传授尽管十分全面、正确,但学生所掌握的知识总要打一些折扣,对知识的理解总是不够深刻。如果在教学过程中,教师事先设计一些歧途、曲折,却可以收到良好的教学效果。这类似于公路建设,在平原上修建公路,公路技术人员却有意设计若干处弯道,使司机驾车时一直处于警醒戒备状态以保证行车安全。化学教学过程中的“弯
In chemistry teaching, although the teacher imparts knowledge to students in a comprehensive and correct manner, the students’ knowledge must always be discounted, and the understanding of knowledge is always not profound enough. If in the teaching process, the teacher designs in advance some astray and twists and turns, it can receive good teaching results. This is similar to the construction of highways. Highways are built on the plains, but highway technicians are interested in designing a number of bends so that drivers can be on alert while driving to ensure driving safety. The “bend” in chemistry teaching