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1单元教学内容分析在初中阶段,学生通过学习粗盐的分离和提纯初步学会了过滤和蒸发的方法;通过使用实验装置制取氧气、二氧化碳等气体初步学会了实验室中制备常见气体的基本方法;通过一氧化碳还原氧化铁
1 unit teaching content analysis In the junior high school stage, the students learned the filtration and evaporation methods by studying the separation and purification of crude salt; Through the use of experimental equipment for the preparation of oxygen, carbon dioxide and other gases preliminary learned in the laboratory to prepare common gas basic methods Iron oxide reduction by carbon monoxide