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分析学生学习元素及其化合物知识的困难,以具体案例阐述分类比较法在学生学习元素及其化合物性质、帮助学生构建新知识框架中的重要作用。
Analyze students’ difficulties in learning elements and their compound knowledge, and use specific cases to illustrate the important role of the classification and comparison method in students’ learning elements and their compound nature and help students construct new knowledge framework.