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一、背景分析此教学案例出自一节区级公开课。授课内容是人教版九年级化学上册第六单元《课题3二氧化碳和一氧化碳》的第1课时——CO2的性质。本单元是初中化学最为完整的学习元素和化合物知识体系的一个单元,而二氧化碳又是本单元的一个非常重要的内容,本节课在全书乃至整个化学学习过程中占据着十分重要的地位。从知识结构上看,它起着承上启下的作用。CO2与日常
First, the background analysis This teaching case from a district-level open class. The course content is the first lesson of the “PEP 3” and “CO 2” of Unit 9 of the PEP-9 Chemistry Unit. This unit is one of the most complete units of learning chemistry and compound knowledge in junior middle school chemistry. Carbon dioxide is a very important part of this module. This course occupies a very important position in the whole book and in the entire chemistry learning process. From the point of view of knowledge structure, it plays the role of linkages. CO2 and daily