基于翻转课堂模式的硝酸与铜反应的创新实验互动课堂

Interactive Teaching of Reaction of Nitric Acid and Copper Based on Flipped Classroom

利用翻转课堂的教学模式,引入课堂互动答题系统,选用比表面积极大的新材料——电池级泡沫铜,在保证安全的前提下使用完全密闭装置来完成硝酸和铜的反应,分析浓硝酸和稀硝酸分别与铜反应的产物,探究浓硝酸和铜反应后溶液呈绿色的原因.整个过程十分安全,现象明显,学生参与度与积极性极高.

This paper introduced an interactive personal response system based on the flipped classroom, and used a kind of new raw material-battery level foam copper with large specific surface area to carry out the reaction between nitric acid and copper under full protection. Then analyzed the products of the reactions of concentrated nitric acid and dilute nitric acid with copper respectively, and inquired the green solution left by the reaction of concentrated nitric acid with copper. The whole process was safe with obvious phenomena, and students could participate actively.