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科学概念不是通过死记硬背简单地获得的,教师要为学生指定思维的方向,引导学生运用一定的科学方法对例证进行探索从而有所发现,这是形成概念的关键所在。教师可以使用关注学生前概念、注重微观表征和符号表征二者的有机联系、采用随即通达教学、注重学生的探究体验与运用类比法等策略,促进学生将宏观表征、微观表征和符号表征三者进行有机联系起来,并形成微观化学概念。
The concept of science is not simply obtained by rote memorization. Teachers should find out the direction that students should specify their thinking and guide students to explore the examples through certain scientific methods. This is the key point of forming concepts. Teachers can use the organic relationship of focusing on the pre-student concept, paying attention to the micro-characterization and the symbolic characterization, adopting the strategies of immediately reaching teaching, paying attention to the students’ inquiring experience and using the analogy to promote the students to combine the macro-characterization, micro-characterization and symbolic characterization Organically linked, and the formation of micro-chemical concepts.